Catalyst regeneration energy recovery heat pump system

Abstract

The invention provides a catalyst regeneration energy recovery heat pump system, and belongs to the technical field of thermodynamics and heat pumps. An air channel outside is communicated with a charring-regeneration system through a heat source regenerator, the charring-regeneration system is communicated with the outside through a flue gas channel via a heat exchanger and the heat source regenerator, the charring-regeneration system is communicated with a heating furnace through a CO-rich flue gas channel, and the heating furnace is communicated with the outside through a flue gas channel via the heat exchanger and the heat source regenerator. The compressor communicates with the expansion machine through a circulating working medium channel via the heat supplier, the second compressor, the heat exchanger and the heating furnace, and the third compressor communicates with the heat regenerator through a low-pressure circulating working medium channel and then communicates with the expansion machine through a low-pressure port. The expansion machine is divided into two paths after communicating with the low-temperature heat exchanger through a circulating working medium channel, wherein the first path communicates with the compressor through the heat regenerator, and the second path communicates with the third compressor; the heat supplier is provided with a heated medium channel, and the low-temperature heat exchanger is provided with a low-temperature heat medium channel to be communicated with the outside, so that the catalyst regeneration energy recovery heat pump system is formed.

Description

Technical fields:

[0001] This invention belongs to the field of thermodynamics and heat pump technology. Background technology:

[0002] Catalytic cracking is the process of producing light petroleum products such as liquefied petroleum gas, gasoline, and diesel from heavy petroleum hydrocarbons under the action of a catalyst. When feedstock undergoes catalytic cracking on a catalyst, on the one hand, it generates products such as gases, gasoline, and diesel through cracking and other reactions; on the other hand, condensation reactions occur simultaneously to generate coke deposited on the catalyst surface—which reduces the activity of the catalyst.

[0003] Catalyst regeneration involves burning away the coke deposited on the catalyst with air to restore its activity. This process releases a large amount of high-temperature heat energy, which should be fully utilized. Currently, the main method for recovering energy from regenerated flue gas is to install waste heat boilers to generate steam or further generate power. However, careful analysis reveals the following problems:

[0004] (1) There is a large irreversible loss of temperature difference in the coking process; (2) The composition, temperature and quantity of flue gas are not considered at the same time in the utilization stage; (3) The flue gas energy utilization technology needs to be improved. There is a lot of room for improvement in both power utilization and heating utilization; (4) The flue gas energy recovery is not combined with the overall energy use of the oil refining process to enhance its application value.

[0005] Based on the fundamental principles of simplicity, initiative, safety, and efficiency in energy utilization, this invention presents a catalyst regeneration energy recovery heat pump system with a reasonable process and simple structure, which achieves efficient / high-value recovery and utilization of catalyst regeneration energy. Summary of the Invention:

[0006] The main objective of this invention is to provide a catalyst regeneration energy recovery heat pump system. The specific contents of the invention are described in detail below:

[0007] 1. The catalyst regeneration energy recovery heat pump system mainly consists of a heat source regenerator, a coke combustion-regeneration system, a compressor, a heater, a second compressor, a heat exchanger, a furnace, an expander, a third compressor, a regenerator, and a low-temperature heat exchanger. Externally, it has an air passage connected to the coke combustion-regeneration system via the heat source regenerator. The coke combustion-regeneration system also has a flue gas passage connected to the outside via the heat exchanger and the heat source regenerator. The coke combustion-regeneration system also has a CO-rich flue gas passage connected to the furnace. The furnace also has a flue gas passage connected to the outside via the heat exchanger and the heat source regenerator. The compressor has a circulating working fluid passage connected to the second compressor via the heater. The first compressor is connected to the second compressor, which has a circulating working fluid channel that connects to the expander via a heat exchanger and a heater. The second compressor has a low-pressure circulating working fluid channel that connects to the regenerator and then to the expander via a low-pressure port. The expander also has a circulating working fluid channel that connects to the low-temperature heat exchanger and then splits into two paths—the first path connects to the compressor via the regenerator, and the second path connects to the third compressor. The heater also has a heated medium channel that connects to the outside, and the low-temperature heat exchanger also has a low-temperature heat medium channel that connects to the outside. The expander connects to the compressor, the second compressor, and the third compressor and transmits power, forming a catalyst regeneration energy recovery heat pump system.

[0008] 2. The catalyst regeneration energy recovery heat pump system is the catalyst regeneration energy recovery heat pump system described in item 1, wherein the heating furnace is equipped with a fuel channel that connects to the outside to form the catalyst regeneration energy recovery heat pump system.

[0009] 3. The catalyst regeneration energy recovery heat pump system is the catalyst regeneration energy recovery heat pump system described in item 1 or 2, wherein the heat source regenerator is connected to the coke burning-regeneration system via an air channel, and the air channel of the heat source regenerator is divided into two paths—the first path is connected to the coke burning-regeneration system and the second path is connected to the heating furnace, thus forming the catalyst regeneration energy recovery heat pump system.

[0010] 4. The catalyst regeneration energy recovery heat pump system is any one of the catalyst regeneration energy recovery heat pump systems described in items 1-3, with the addition of an auxiliary combustion chamber. An external fuel passage connects the auxiliary combustion chamber to the auxiliary combustion chamber. The coke-regeneration system is adjusted so that the flue gas passage connects the coke-regeneration system to the auxiliary combustion chamber, and the auxiliary combustion chamber is further connected to the heat exchanger via a flue gas passage, thus forming the catalyst regeneration energy recovery heat pump system.

[0011] 5. The catalyst regeneration energy recovery heat pump system mainly consists of a heat source regenerator, a coke combustion-regeneration system, a compressor, a heater, a second compressor, a heat exchanger, a furnace, an expander, a third compressor, a regenerator, a low-temperature heat exchanger, an air compressor, a flue gas fan, and a second flue gas fan. Externally, it has an air passage connecting to the coke combustion-regeneration system via the air compressor and the heat source regenerator. The coke combustion-regeneration system also has a flue gas passage connecting to the outside via the flue gas fan, heat exchanger, and heat source regenerator. The coke combustion-regeneration system also has a CO-rich flue gas passage connecting to the furnace via the second flue gas fan. The furnace also has a flue gas passage connecting to the outside via the heat exchanger and the heat source regenerator. The compressor has a circulating working fluid passage connecting to the furnace via the heater. The second compressor is connected, and the second compressor also has a circulating working fluid channel that connects to the expander via a heat exchanger and a heating furnace. The third compressor has a low-pressure circulating working fluid channel that connects to the regenerator and then to the expander via a low-pressure port. The expander also has a circulating working fluid channel that connects to the low-temperature heat exchanger and then splits into two paths—the first path connects to the compressor via the regenerator, and the second path connects to the third compressor. The heater also has a heated medium channel that connects to the outside, and the low-temperature heat exchanger also has a low-temperature heat medium channel that connects to the outside. The expander connects to the compressor, the second compressor, and the third compressor and transmits power. The flue gas fan and the second flue gas fan connect to the air compressor and transmit power, forming a catalyst regeneration energy recovery heat pump system.

[0012] 6. The catalyst regeneration energy recovery heat pump system is the catalyst regeneration energy recovery heat pump system described in item 5, wherein the heating furnace is equipped with a fuel channel that connects to the outside to form the catalyst regeneration energy recovery heat pump system.

[0013] 7. The catalyst regeneration energy recovery heat pump system is an auxiliary combustion chamber added to the catalyst regeneration energy recovery heat pump system described in item 5 or 6. The auxiliary combustion chamber is connected to the external fuel channel. The coke-regeneration system is changed from having a flue gas channel connected to the flue gas fan to having a flue gas channel connected to the auxiliary combustion chamber. The auxiliary combustion chamber is then connected to the flue gas fan via a flue gas channel, thus forming the catalyst regeneration energy recovery heat pump system.

[0014] 8. The catalyst regeneration energy recovery heat pump system is any one of the catalyst regeneration energy recovery heat pump systems described in items 1-7, wherein the low-temperature heat exchanger is connected to the compressor via a circulating working fluid channel through a regenerator, and then the low-temperature heat exchanger is connected to the compressor via a circulating working fluid channel, and the compressor is connected to itself via a circulating working fluid channel through a regenerator, thus forming the catalyst regeneration energy recovery heat pump system.

[0015] 9. A catalyst regeneration energy recovery heat pump system is formed by adding a second regenerator to any of the catalyst regeneration energy recovery heat pump systems described in items 1-7. The low-temperature heat exchanger is changed from having a circulating working fluid channel connected to the compressor via the regenerator to having a circulating working fluid channel connected to the compressor via the regenerator and the second regenerator. The compressor is changed from having a circulating working fluid channel connected to the second compressor via the heater to having a circulating working fluid channel connected to the second compressor via the heater and the second regenerator, thus forming a catalyst regeneration energy recovery heat pump system.

[0016] 10. A catalyst regeneration energy recovery heat pump system is any one of the catalyst regeneration energy recovery heat pump systems described in items 1-7, with the addition of a second regenerator. The low-temperature heat exchanger is adjusted so that it has a circulating working fluid channel connected to the compressor via the regenerator, and then the compressor has a circulating working fluid channel connected to itself via the regenerator and the second regenerator. The compressor is also adjusted so that it has a circulating working fluid channel connected to the second compressor via the heater, and then the compressor has a circulating working fluid channel connected to the second compressor via the heater and the second regenerator, thus forming a catalyst regeneration energy recovery heat pump system.

[0017] 11. A catalyst regeneration energy recovery heat pump system is any one of the catalyst regeneration energy recovery heat pump systems described in items 1-7, with the addition of a second regenerator. The low-temperature heat exchanger is adjusted so that it has a circulating working fluid channel connected to the compressor via the regenerator and the second regenerator, and the heating furnace is adjusted so that it has a circulating working fluid channel connected to the expander, and then the expander has a circulating working fluid channel connected to itself via the second regenerator, thus forming a catalyst regeneration energy recovery heat pump system.

[0018] 12. A catalyst regeneration energy recovery heat pump system is any one of the catalyst regeneration energy recovery heat pump systems described in items 1-7, with the addition of a second regenerator. The compressor is adjusted so that the circulating working fluid channel is connected to the heater, and then the compressor has a circulating working fluid channel connected to the heater via the second regenerator. The heating furnace is adjusted so that the heating furnace has a circulating working fluid channel connected to the expander, and then the expander has a circulating working fluid channel connected to itself via the second regenerator, thus forming a catalyst regeneration energy recovery heat pump system.

[0019] 13. A catalyst regeneration energy recovery heat pump system is formed by adding a dual-energy compressor to replace the compressor in any of the catalyst regeneration energy recovery heat pump systems described in items 1-12, adding a second dual-energy compressor to replace the second compressor, adding an expander and speed-up unit to replace the expander, and adding a third dual-energy compressor to replace the third compressor.

[0020] 14. A catalyst regeneration energy recovery heat pump system is formed by adding a dual-energy compressor to replace the compressor in any of the catalyst regeneration energy recovery heat pump systems described in items 1-12, adding a second dual-energy compressor to replace the second compressor, adding an expander speed-up unit to replace the expander, and adding a diffuser tube to replace the third compressor.

[0021] 15. The catalyst regeneration energy recovery heat pump system is formed by eliminating the low-temperature heat exchanger and its low-temperature heat medium channel connected to the outside in any of the catalyst regeneration energy recovery heat pump systems described in items 1-7, 9, and 11-12; adjusting the connection between the expander's circulating working fluid channel and the low-temperature heat exchanger to the expander's low-temperature heat medium channel connected to the outside; adjusting the connection between the low-temperature heat exchanger's circulating working fluid channel and the regenerator to the outside's low-temperature heat medium channel connected to the regenerator; and adjusting the connection between the low-temperature heat exchanger's circulating working fluid channel and the third compressor to the outside's low-temperature heat medium channel connected to the third compressor.

[0022] 16. A catalyst regeneration energy recovery heat pump system, which is a catalyst regeneration energy recovery heat pump system described in either item 8 or 10, wherein the low-temperature heat exchanger and its low-temperature heat medium channel connected to the outside are removed, the expansion unit is changed from having a circulating working fluid channel connected to the low-temperature heat exchanger to having a low-temperature heat medium channel connected to the outside, the low-temperature heat exchanger is changed from having a circulating working fluid channel connected to the compressor to having an external low-temperature heat medium channel connected to the compressor, and the low-temperature heat exchanger is changed from having a circulating working fluid channel connected to the third compressor to having an external low-temperature heat medium channel connected to the third compressor, thus forming a catalyst regeneration energy recovery heat pump system. Attached image description:

[0023] Figure 1 This is a principle thermodynamic system diagram of a catalyst regeneration energy recovery heat pump system provided by the present invention.

[0024] Figure 2 This is a second principle thermodynamic system diagram of a catalyst regeneration energy recovery heat pump system provided by the present invention.

[0025] Figure 3 This is a third principle thermodynamic system diagram of a catalyst regeneration energy recovery heat pump system provided by the present invention.

[0026] Figure 4 This is a fourth principle thermodynamic system diagram of a catalyst regeneration energy recovery heat pump system provided by the present invention.

[0027] Figure 5This is the fifth principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0028] Figure 6 This is the sixth principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0029] Figure 7 This is the seventh principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0030] Figure 8 This is the eighth principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0031] Figure 9 This is the ninth principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0032] Figure 10 This is the tenth principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0033] Figure 11 This is the 11th principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0034] Figure 12 This is the 12th principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0035] Figure 13 This is the 13th principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0036] Figure 14 This is the 14th principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0037] In the diagram, 1-Heat source regenerator, 2-Coke-regeneration system, 3-Compressor, 4-Heater, 5-Second compressor, 6-Heat exchanger, 7-Heating furnace, 8-Expander, 9-Third compressor, 10-Regenerator, 11-Low-temperature heat exchanger, 12-Auxiliary combustion chamber, 13-Air compressor, 14-Smoke machine, 15-Second smoke machine, 16-Second regenerator, 17-Dual-energy compressor, 18-Second dual-energy compressor, 19-Expander speed increaser, 20-Third dual-energy compressor, 21-Diffuser tube; where ①The low-temperature heat exchanger during transcritical cycles is an evaporator; ②The separation and purification components required for the coke-regeneration system are considered integral parts of the coke-regeneration system and are not listed separately. Detailed implementation method:

[0038] First, it should be noted that the structure and process are not repeated unless necessary, and obvious processes are not described. The invention will now be described in detail with reference to the accompanying drawings and examples.

[0039] Figure 1 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0040] (1) Structurally, it mainly consists of a heat source regenerator, a coke-regeneration system, a compressor, a heater, a second compressor, a heat exchanger, a heating furnace, an expander, a third compressor, a regenerator, and a low-temperature heat exchanger; externally, there is an air passage that connects to the coke-regeneration system 2 via the heat source regenerator 1. The coke-regeneration system 2 also has a flue gas passage that connects to the outside via the heat exchanger 6 and the heat source regenerator 1. The coke-regeneration system 2 also has a CO-rich flue gas passage that connects to the heating furnace 7. The heating furnace 7 also has a flue gas passage that connects to the outside via the heat exchanger 6 and the heat source regenerator 1. The compressor 3 has a circulating working fluid passage that connects to the second compressor 5 via the heater 4. The second compressor 5 is connected to the expander 8 via a circulating working fluid channel through a heat exchanger 6 and a heater 7. The third compressor 9 is connected to the expander 8 via a low-pressure circulating working fluid channel through a regenerator 10 and then through a low-pressure port. The expander 8 is also connected to the expander 8 via a circulating working fluid channel through a low-temperature heat exchanger 11, which then splits into two paths: the first path is connected to the compressor 3 via the regenerator 10, and the second path is connected to the third compressor 9. The heater 4 is also connected to the outside via a heated medium channel, and the low-temperature heat exchanger 11 is also connected to the outside via a low-temperature heat medium channel. The expander 8 connects the compressor 3, the second compressor 5, and the third compressor 9 and transmits power.

[0041] (2) In terms of process, external air flows through the heat source regenerator 1 to absorb heat and increase its temperature, and then enters the coke burning-regeneration system 2 to participate in combustion; coke forms on the surface of the air and catalyst, and a series of processes including combustion are carried out to regenerate the catalyst. The coke burning-regeneration system 2 discharges flue gas with different CO contents to the outside in two separate paths; the CO-rich flue gas generated by the coke burning-regeneration system 2 and after separation and purification are provided to the heating furnace 7. The CO-rich flue gas is combusted in the heating furnace 7. The high-temperature flue gas generated in the heating furnace 7 releases heat to the circulating working fluid flowing through it, and then flows... The flue gas produced by the coke-regeneration system 2 and after separation and purification (with little or no CO content) is supplied to the heat exchanger 6. The flue gas flows through the heat exchanger 6 and the heat source regenerator 1, gradually releasing heat and cooling down before being discharged. The circulating working fluid discharged from the compressor 3 flows through the heater 4, releasing heat and cooling down, then through the second compressor 5 for pressurization and heating, then through the heat exchanger 6 and the furnace 7 for gradual heat absorption and heating, finally through the expander 8 for depressurization and work, and then supplied to the low-temperature... The low-pressure circulating working fluid discharged from the third compressor 9 flows through the regenerator 10 to release heat and cool down. It then enters the expander 8 through the intermediate low-pressure port to reduce pressure and perform work, before being supplied to the low-temperature heat exchanger 11. The circulating working fluid absorbs heat and heats up through the low-temperature heat exchanger 11, then splits into two paths—the first path flows through the regenerator 10 to absorb heat and heat up before entering the compressor 3 for further pressure and temperature increase, and the second path enters the third compressor 9 for further pressure and temperature increase. The flue gas and CO-rich flue gas emitted from the coke-regeneration system 2 provide the driving heat load. Air and flue gas flow through the heat source. The process carries away the low-temperature heat load, the heated medium obtains a medium-temperature heat load through the heater 4, and the low-temperature heat medium provides a low-temperature heat load through the low-temperature heat exchanger 11; the mechanical energy output by the expander 8 is provided to the compressor 3, the second compressor 5 and the third compressor 9 as power, or the mechanical energy output by the expander 8 is provided to the compressor 3, the second compressor 5 and the third compressor 9 and the outside as power, or the expander 8 and the outside jointly provide power to the compressor 3, the second compressor 5 and the third compressor 9, forming a catalyst regeneration energy recovery heat pump system.

[0042] Figure 2 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0043] exist Figure 1 In the catalyst regeneration energy recovery heat pump system shown, the heating furnace 7 is equipped with a fuel channel that connects to the outside. The CO-rich flue gas and fuel are burned in the heating furnace 7 to form high-temperature flue gas. The high-temperature flue gas releases heat to the circulating working fluid flowing through the heating furnace 7, and then provides it to the heat exchanger 6 to form the catalyst regeneration energy recovery heat pump system.

[0044] Figure 3 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0045] (1) Structurally, in Figure 2 In the catalyst regeneration energy recovery heat pump system shown, the heat source regenerator 1 is connected to the coke-regeneration system 2 via an air channel. The air channel of the heat source regenerator 1 is then divided into two paths: the first path is connected to the coke-regeneration system 2, and the second path is connected to the heating furnace 7.

[0046] (2) In terms of process, with Figure 2 Compared to the catalyst regeneration energy recovery heat pump system shown, the difference is that: external air flows through the heat source regenerator 1 to absorb heat and increase its temperature, and then splits into two paths - the first path enters the coke burning-regeneration system 2 to participate in the combustion chamber, and the second path is supplied to the heating furnace 7; fuel, air and CO-rich flue gas are burned in the heating furnace 7 to generate high-temperature flue gas, and the high-temperature flue gas releases heat to the circulating working fluid flowing through the heating furnace 7, and then is supplied to the heat exchanger 6 to form the catalyst regeneration energy recovery heat pump system.

[0047] Figure 4 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0048] (1) Structurally, in Figure 1 In the catalyst regeneration energy recovery heat pump system shown, an auxiliary combustion chamber 12 is added, and an external fuel channel is connected to the auxiliary combustion chamber 12. The coke-regeneration system 2, which was previously connected to the heat exchanger 6 via a flue gas channel, is now connected to the auxiliary combustion chamber 12 via a flue gas channel. The auxiliary combustion chamber 12 is then connected to the heat exchanger 6 via a flue gas channel.

[0049] (2) In terms of process, with Figure 1 Compared to the catalyst regeneration energy recovery heat pump system shown, the difference is that: external fuel enters the auxiliary combustion chamber 12, and the flue gas emitted by the coke-regeneration system 2 enters the auxiliary combustion chamber 12. The fuel and flue gas are burned in the auxiliary combustion chamber 12 to form flue gas at a higher temperature, which is then supplied to the heat exchanger 6 to form the catalyst regeneration energy recovery heat pump system.

[0050] Figure 5 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0051] (1) Structurally, it mainly consists of a heat source regenerator, a coke-regeneration system, a compressor, a heater, a second compressor, a heat exchanger, a heating furnace, an expander, a third compressor, a regenerator, a low-temperature heat exchanger, an air compressor, a flue gas fan, and a second flue gas fan; externally, there is an air passage that connects to the coke-regeneration system 2 via the air compressor 13 and the heat source regenerator 1. The coke-regeneration system 2 also has a flue gas passage that connects to the outside via the flue gas fan 14, the heat exchanger 6, and the heat source regenerator 1. The coke-regeneration system 2 also has a CO-rich flue gas passage that connects to the heating furnace 7 via the second flue gas fan 15. The heating furnace 7 also has a flue gas passage that connects to the outside via the heat exchanger 6 and the heat source regenerator 1. The compressor 3 has a circulating working fluid passage that connects to the second compressor via the heater 4. Compressor 5 is connected to the outside. The second compressor 5 also has a circulating working fluid channel that connects to the expander 8 via the heat exchanger 6 and the heater 7. The third compressor 9 has a low-pressure circulating working fluid channel that connects to the regenerator 10 and then to the expander 8 via the low-pressure port. The expander 8 also has a circulating working fluid channel that connects to the low-temperature heat exchanger 11 and then splits into two paths—the first path connects to the compressor 3 via the regenerator 10, and the second path connects to the third compressor 9. The heater 4 also has a heated medium channel that connects to the outside. The low-temperature heat exchanger 11 also has a low-temperature heat medium channel that connects to the outside. The expander 8 connects to the compressor 3, the second compressor 5, and the third compressor 9 and transmits power. The smoke machine 14 and the second smoke machine 15 connect to the air compressor 13 and transmit power.

[0052] (2) In terms of process, with Figure 1 Compared to the catalyst regeneration energy recovery heat pump system shown, the difference lies in the following: external air flows through air compressor 13 to increase pressure and temperature, and then enters heat source regenerator 1 to absorb heat and increase temperature; the flue gas (with low or no CO content) generated and discharged after separation and purification by coke-regeneration system 2 is provided to flue gas fan 14, and the flue gas flows through flue gas fan 14 to reduce pressure and do work, and then enters heat exchanger 6 to release heat and reduce temperature; the CO-rich flue gas generated and discharged after separation and purification by coke-regeneration system 2 flows through second flue gas fan 15 to reduce pressure and do work, and then is provided to heating furnace 7; the mechanical energy output by expander 8, flue gas fan 14 and second flue gas fan 15 is provided to compressor 3, second compressor 5 and third compressor 9 as power, or the mechanical energy output by expander 8, flue gas fan 14 and second flue gas fan 15 is provided to compressor 3, second compressor 5, third compressor 9 and external environment as power, or expander 8, flue gas fan 14, second flue gas fan 15 and external environment jointly provide power to compressor 3, second compressor 5 and third compressor 9, forming a catalyst regeneration energy recovery heat pump system.

[0053] Figure 6 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0054] (1) Structurally, in Figure 5In the catalyst regeneration energy recovery heat pump system shown, an auxiliary combustion chamber 12 is added, and an external fuel channel is connected to the auxiliary combustion chamber 12. The coke-regeneration system 2, which was previously connected to the flue gas duct 14, is now connected to the auxiliary combustion chamber 12, and the auxiliary combustion chamber 12 is further connected to the flue gas duct 14.

[0055] (2) In terms of process, with Figure 5 Compared to the catalyst regeneration energy recovery heat pump system shown, the difference is that: external fuel enters the auxiliary combustion chamber 12, and the flue gas emitted by the coke-regeneration system 2 enters the auxiliary combustion chamber 12. The fuel and flue gas are burned in the auxiliary combustion chamber 12 to form flue gas at a higher temperature, which is then supplied to the flue gas motor 14, thus forming the catalyst regeneration energy recovery heat pump system.

[0056] Figure 7 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0057] (1) Structurally, in Figure 1 In the catalyst regeneration energy recovery heat pump system shown, the low-temperature heat exchanger 11 is adjusted to have a circulating working fluid channel connected to the compressor 3 via the regenerator 10, and then the compressor 3 has a circulating working fluid channel connected to itself via the regenerator 10.

[0058] (2) In terms of process, with Figure 1 Compared with the catalyst regeneration energy recovery heat pump system shown, the difference is that the first circulating working fluid discharged from the low-temperature heat exchanger 11 enters the compressor 3 to increase its pressure and temperature. After reaching a certain level, it flows through the regenerator 10 to absorb heat and increase its temperature. Then it enters the compressor 3 again to continue to increase its pressure and temperature, thus forming the catalyst regeneration energy recovery heat pump system.

[0059] Figure 8 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0060] (1) Structurally, in Figure 1 In the catalyst regeneration energy recovery heat pump system shown, a second regenerator 16 is added. The low-temperature heat exchanger 10 is changed from having a circulating working fluid channel connected to the compressor 3 via the regenerator 10 to having a circulating working fluid channel connected to the compressor 3 via the regenerator 10 and the second regenerator 16. The compressor 3 is changed from having a circulating working fluid channel connected to the second compressor 5 via the heater 4 to having a circulating working fluid channel connected to the second compressor 5 via the heater 4 and the second regenerator 16.

[0061] (2) In terms of process, with Figure 1Compared with the catalyst regeneration energy recovery heat pump system shown, the difference is that the circulating working fluid discharged by the compressor 3 flows through the heater 4 and the second regenerator 16 to gradually release heat and cool down, and then provides it to the second compressor 5; the first circulating working fluid discharged by the low temperature heat exchanger 11 flows through the regenerator 10 and the second regenerator 16 to gradually absorb heat and increase temperature, and then enters the compressor 3 to increase pressure and temperature, forming the catalyst regeneration energy recovery heat pump system.

[0062] Figure 9 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0063] (1) Structurally, in Figure 1 In the catalyst regeneration energy recovery heat pump system shown, a second regenerator 16 is added. The low-temperature heat exchanger 11 is connected to the compressor 3 via the regenerator 10 through a circulating working fluid channel. After the low-temperature heat exchanger 11 is connected to the compressor 3 through a circulating working fluid channel, the compressor 3 is connected to itself via the regenerator 10 and the second regenerator 16. The compressor 3 is connected to the second compressor 5 via the heater 4 through a circulating working fluid channel.

[0064] (2) In terms of process, with Figure 1 Compared to the catalyst regeneration energy recovery heat pump system shown, the difference lies in the following: the circulating working fluid discharged from the compressor 3 flows through the heater 4 and the second regenerator 16 to gradually release heat and cool down, and then supplies it to the second compressor 5; the first circulating working fluid discharged from the low-temperature heat exchanger 11 enters the compressor 3 to increase pressure and temperature, and after reaching a certain level, it flows through the regenerator 10 and the second regenerator 16 to gradually absorb heat and increase temperature, and then enters the compressor 3 to continue to increase pressure and temperature, forming the catalyst regeneration energy recovery heat pump system.

[0065] Figure 10 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0066] (1) Structurally, in Figure 1 In the catalyst regeneration energy recovery heat pump system shown, a second regenerator 16 is added. The low-temperature heat exchanger 11 is adjusted so that it has a circulating working fluid channel that connects to the compressor 3 via the regenerator 10 and the second regenerator 16. The heating furnace 7 is adjusted so that it has a circulating working fluid channel that connects to the expander 8, and then the expander 8 has a circulating working fluid channel that connects to itself via the second regenerator 16.

[0067] (2) In terms of process, with Figure 1Compared to the catalyst regeneration energy recovery heat pump system shown, the difference lies in the following: the circulating working fluid discharged from the second compressor 5 flows through the heat exchanger 6 and the heater 7 to gradually absorb heat and increase its temperature. After entering the expander 8 to reduce its pressure and do work to a certain extent, it flows through the second regenerator 16 to release heat and decrease its temperature. It then enters the expander 8 to continue to reduce its pressure and do work, and is then supplied to the low-temperature heat exchanger 11. The first circulating working fluid discharged from the low-temperature heat exchanger 11 flows through the regenerator 10 and the second regenerator 16 to gradually absorb heat and increase its temperature. After entering the compressor 3 to increase its pressure and temperature, the catalyst regeneration energy recovery heat pump system is formed.

[0068] Figure 11 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0069] (1) Structurally, in Figure 1 In the catalyst regeneration energy recovery heat pump system shown, a second regenerator 16 is added. The compressor 3 is adjusted so that the circulating working fluid channel is connected to the heater 4, and then the compressor 3 has a circulating working fluid channel connected to itself through the second regenerator 16. The heating furnace 7 is adjusted so that the circulating working fluid channel is connected to the expander 8, and then the expander 8 has a circulating working fluid channel connected to itself through the second regenerator 16.

[0070] (2) In terms of process, with Figure 1 Compared to the catalyst regeneration energy recovery heat pump system shown, the difference lies in the following: the circulating working fluid discharged from the second compressor 5 flows through the heat exchanger 6 and the heater 7 to gradually absorb heat and increase its temperature. After entering the expander 8 to reduce its pressure and do work to a certain extent, it flows through the second regenerator 16 to release heat and decrease its temperature. It then enters the expander 8 to continue to reduce its pressure and do work, and is then supplied to the low-temperature heat exchanger 11. The first circulating working fluid discharged from the low-temperature heat exchanger 11 flows through the regenerator 10 to absorb heat and increase its temperature. After entering the compressor 3 to increase its pressure and temperature to a certain extent, it flows through the second regenerator 16 to absorb heat and increase its temperature. After that, it enters the compressor 3 to continue to increase its pressure and temperature, thus forming the catalyst regeneration energy recovery heat pump system.

[0071] Figure 12 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0072] (1) Structurally, in Figure 1 In the catalyst regeneration energy recovery heat pump system shown, a dual-energy compressor 17 is added and replaces compressor 3, a second dual-energy compressor 18 is added and replaces second compressor 5, an expander accelerator 19 is added and replaces expander 8, and a third dual-energy compressor 20 is added and replaces third compressor 9.

[0073] (2) In terms of process, with Figure 1Compared to the catalyst regeneration energy recovery heat pump system shown, the difference lies in the following: the circulating working fluid discharged from the dual-energy compressor 17 flows through the heater 4 to release heat and cool down, then flows through the second dual-energy compressor 18 to increase pressure and temperature and decrease speed, flows through the heat exchanger 6 and the heater 7 to gradually absorb heat and increase temperature, flows through the expander 19 to decrease pressure and increase speed, and is then supplied to the low-temperature heat exchanger 11; the low-pressure circulating working fluid discharged from the third dual-energy compressor 20 flows through the regenerator 10 to release heat and cool down, enters the expander 19 through the intermediate low-pressure port to decrease pressure and increase speed, and is then supplied to the low-temperature heat exchanger 11; the circulating working fluid absorbs heat and increases temperature in the low-temperature heat exchanger 11, and then splits into two paths— —The first stream flows through the regenerator 10 to absorb heat and increase its temperature before entering the dual-energy compressor 17 for pressurization, heating, and deceleration. The second stream enters the third dual-energy compressor 20 for pressurization, heating, and deceleration. The mechanical energy output by the expander 19 provides power to the dual-energy compressor 17, the second dual-energy compressor 18, and the third dual-energy compressor 20, or the mechanical energy output by the expander 19 provides power to the dual-energy compressor 17, the second dual-energy compressor 18, the third dual-energy compressor 20, and external sources, or the expander 19 and external sources jointly provide power to the dual-energy compressor 17, the second dual-energy compressor 18, and the third dual-energy compressor 20, forming a catalyst regeneration energy recovery heat pump system.

[0074] Figure 13 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0075] (1) Structurally, in Figure 1 In the catalyst regeneration energy recovery heat pump system shown, a dual-energy compressor 17 is added and replaces compressor 3, a second dual-energy compressor 18 is added and replaces second compressor 5, an expander speed-up unit 19 is added and replaces expander 8, and a diffuser tube 21 is added and replaces third compressor 9.

[0076] (2) In terms of process, with Figure 1Compared to the catalyst regeneration energy recovery heat pump system shown, the difference lies in the following: the circulating working fluid discharged from the dual-energy compressor 17 flows through the heater 4 to release heat and cool down, then flows through the second dual-energy compressor 18 to increase pressure and temperature and decrease speed, flows through the heat exchanger 6 and the heater 7 to gradually absorb heat and increase temperature, flows through the expander 19 to decrease pressure, do work, and increase speed, and is then supplied to the low-temperature heat exchanger 11; the low-pressure circulating working fluid discharged from the diffuser 21 flows through the regenerator 10 to release heat and cool down, enters the expander 19 through the intermediate low-pressure port to decrease pressure, do work, and increase speed, and is then supplied to the low-temperature heat exchanger 11; the circulating working fluid flows through the low-temperature heat exchanger... The heat exchanger 11 absorbs heat and heats up, then splits into two streams—the first stream flows through the regenerator 10 to absorb heat and heat up before entering the dual-energy compressor 17 to increase pressure and temperature and then decrease speed; the second stream enters the diffuser 21 to increase pressure and temperature and then decrease speed. The mechanical energy output by the expander 19 provides power to the dual-energy compressor 17 and the second dual-energy compressor 18, or the mechanical energy output by the expander 19 provides power to the dual-energy compressor 17, the second dual-energy compressor 18 and the outside, or the expander 19 and the outside together provide power to the dual-energy compressor 17 and the second dual-energy compressor 18, forming a catalyst regeneration energy recovery heat pump system.

[0077] Figure 14 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0078] (1) Structurally, in Figure 1 In the catalyst regeneration energy recovery heat pump system shown, the low-temperature heat exchanger 11 and its low-temperature heat medium channel connected to the outside are removed. The expansion machine 8 is changed from having a circulating working fluid channel connected to the low-temperature heat exchanger 11 to having a low-temperature heat medium channel connected to the outside. The low-temperature heat exchanger 11 is changed from having a circulating working fluid channel connected to the regenerator 10 to having an external low-temperature heat medium channel connected to the regenerator 10. The low-temperature heat exchanger 11 is changed from having a circulating working fluid channel connected to the third compressor 9 to having an external low-temperature heat medium channel connected to the third compressor 9.

[0079] (2) In terms of process, with Figure 1 Compared to the catalyst regeneration energy recovery heat pump system shown, the difference lies in the following: the first external low-temperature heat medium flows through the regenerator 10 to absorb heat and increase temperature, flows through the compressor 3 to increase pressure and increase temperature, flows through the heater 4 to release heat and decrease temperature, flows through the second compressor 5 to increase pressure and increase temperature, flows through the heat exchanger 6 and the heater 7 to gradually absorb heat and increase temperature, and then enters the expander 8 to reduce pressure and perform work and be discharged to the outside; the second external low-temperature heat medium flows through the third compressor 9 to increase pressure and increase temperature, flows through the regenerator 10 to release heat and decrease temperature, and then enters the expander 8 through the intermediate low-pressure port to reduce pressure and perform work and be discharged to the outside; the low-temperature heat medium provides low-temperature heat load through the heat pump process, forming the catalyst regeneration energy recovery heat pump system.

[0080] The effects achievable by this invention—the catalyst regeneration energy recovery heat pump system proposed in this invention has the following effects and advantages:

[0081] (1) Technical measures were proposed to improve the thermal energy grade of the catalyst regeneration process and to utilize it for refrigeration / heating.

[0082] (2) Reduce irreversible temperature loss during catalyst regeneration and increase the temperature of the initial driving heat source.

[0083] (3) The variable temperature obtains the driving heat load, thereby improving the performance index of the gas heat pump system by increasing the heat absorption temperature.

[0084] (4) The driving heat load provided by the regenerated flue gas and the regenerated CO-rich flue gas is used in stages to reduce the systemic irreversible loss and improve the energy utilization level of catalyst regeneration.

[0085] (5) Fuel (e.g., refinery gas or purchased fuel) provides high-temperature driving heat load through the heating furnace, which greatly enhances the cooling / heating value of regenerated flue gas energy.

[0086] (6) Achieve efficient / high-value utilization of flue gas energy with relatively simple technical measures, reduce costs, and improve economic efficiency.

[0087] (7) The heat recovery measures increase the average temperature of the heat pump system during the heat absorption process, resulting in less systemic temperature difference loss and improved device performance index.

[0088] (8) Provides multiple technical solutions, which are conducive to the catalyst regeneration energy recovery heat pump system to better enhance the energy application value.

Claims

1. The catalyst regeneration energy recovery heat pump system mainly consists of a heat source regenerator, a coke-regeneration system, a compressor, a heater, a second compressor, a heat exchanger, a heating furnace, an expander, a third compressor, a regenerator, and a low-temperature heat exchanger; an external air channel connects to the coke-regeneration system (2) via the heat source regenerator (1), the coke-regeneration system (2) also has a flue gas channel connecting to the outside via the heat exchanger (6) and the heat source regenerator (1), the coke-regeneration system (2) also has a CO-rich flue gas channel connecting to the heating furnace (7), the heating furnace (7) also has a flue gas channel connecting to the outside via the heat exchanger (6) and the heat source regenerator (1), the compressor (3) has a circulating working fluid channel connecting to the second compressor (5) via the heater (4), the second compressor ( 5) There is also a circulating working fluid channel that is connected to the expander (8) via the heat exchanger (6) and the heating furnace (7). The third compressor (9) has a low-pressure circulating working fluid channel that is connected to the regenerator (10) and then connected to the expander (8) via the low-pressure port. The expander (8) also has a circulating working fluid channel that is connected to the low-temperature heat exchanger (11) and then splits into two paths - the first path is connected to the compressor (3) via the regenerator (10) and the second path is connected to the third compressor (9). The heater (4) also has a heated medium channel that is connected to the outside. The low-temperature heat exchanger (11) also has a low-temperature heat medium channel that is connected to the outside. The expander (8) connects to the compressor (3), the second compressor (5) and the third compressor (9) and transmits power to form a catalyst regeneration energy recovery heat pump system.

2. The catalyst regeneration energy recovery heat pump system is a catalyst regeneration energy recovery heat pump system according to claim 1, wherein the heating furnace (7) is provided with a fuel channel connected to the outside to form the catalyst regeneration energy recovery heat pump system.

3. The catalyst regeneration energy recovery heat pump system is a catalyst regeneration energy recovery heat pump system according to claim 1 or claim 2, wherein the heat source regenerator (1) is connected to the coke-regeneration system (2) by an air channel, and the heat source regenerator (1) is divided into two paths by an air channel - the first path is connected to the coke-regeneration system (2) and the second path is connected to the heating furnace (7), thus forming the catalyst regeneration energy recovery heat pump system.

4. The catalyst regeneration energy recovery heat pump system is an auxiliary combustion chamber (12) added to any of the catalyst regeneration energy recovery heat pump systems described in claims 1-3. An external fuel channel is connected to the auxiliary combustion chamber (12). The coke-regeneration system (2) is adjusted so that the coke-regeneration system (2) is connected to the heat exchanger (6) through a flue gas channel. The auxiliary combustion chamber (12) is then connected to the heat exchanger (6) through a flue gas channel, thus forming the catalyst regeneration energy recovery heat pump system.

5. The catalyst regeneration energy recovery heat pump system mainly consists of a heat source regenerator, a coke-regeneration system, a compressor, a heater, a second compressor, a heat exchanger, a heating furnace, an expander, a third compressor, a regenerator, a low-temperature heat exchanger, an air compressor, a flue gas fan, and a second flue gas fan. Externally, there is an air channel connecting the coke-regeneration system (2) via the air compressor (13) and the heat source regenerator (1). The coke-regeneration system (2) also has a flue gas channel connecting to the outside via the flue gas fan (14), the heat exchanger (6), and the heat source regenerator (1). The coke-regeneration system (2) also has a CO-rich flue gas channel connecting to the heating furnace (7) via the second flue gas fan (15). The heating furnace (7) also has a flue gas channel connecting to the outside via the heat exchanger (6) and the heat source regenerator (1). The compressor (3) has a circulating working fluid channel connecting to the second compressor (5) via the heater (4). The compressor (5) also has a circulating working fluid channel that is connected to the expander (8) via the heat exchanger (6) and the heater (7). The third compressor (9) has a low-pressure circulating working fluid channel that is connected to the regenerator (10) and then connected to the expander (8) via the low-pressure port. The expander (8) also has a circulating working fluid channel that is connected to the low-temperature heat exchanger (11) and then splits into two paths - the first path is connected to the compressor (3) via the regenerator (10) and the second path is connected to the third compressor (9). The heater (4) also has a heated medium channel that is connected to the outside. The low-temperature heat exchanger (11) also has a low-temperature heat medium channel that is connected to the outside. The expander (8) is connected to the compressor (3), the second compressor (5) and the third compressor (9) and transmits power. The smoke machine (14) and the second smoke machine (15) are connected to the air compressor (13) and transmit power, forming a catalyst regeneration energy recovery heat pump system.

6. The catalyst regeneration energy recovery heat pump system is a catalyst regeneration energy recovery heat pump system according to claim 5, wherein the heating furnace (7) is provided with a fuel channel connected to the outside to form the catalyst regeneration energy recovery heat pump system.

7. The catalyst regeneration energy recovery heat pump system is an auxiliary combustion chamber (12) added to the catalyst regeneration energy recovery heat pump system described in claim 5 or claim 6. The auxiliary combustion chamber (12) is connected to the external fuel channel. The coke-regeneration system (2) is adjusted to have a flue gas channel connected to the smoke machine (14) so ​​that the coke-regeneration system (2) has a flue gas channel connected to the auxiliary combustion chamber (12) and the auxiliary combustion chamber (12) has a flue gas channel connected to the smoke machine (14), thus forming the catalyst regeneration energy recovery heat pump system.

8. A catalyst regeneration energy recovery heat pump system is a catalyst regeneration energy recovery heat pump system according to any one of the catalyst regeneration energy recovery heat pump systems described in claims 1-7, wherein the low-temperature heat exchanger (11) is connected to the compressor (3) via a circulating working fluid channel through the regenerator (10), and the compressor (3) is then connected to itself via a circulating working fluid channel through the regenerator (10), thereby forming a catalyst regeneration energy recovery heat pump system.

9. A catalyst regeneration energy recovery heat pump system is a catalyst regeneration energy recovery heat pump system according to any one of claims 1-7, wherein a second regenerator (16) is added, the low-temperature heat exchanger (10) is connected to the compressor (3) via the regenerator (10) through the circulating working fluid channel, and the low-temperature heat exchanger (11) is connected to the compressor (3) via the regenerator (10) and the second regenerator (16) through the circulating working fluid channel, and the compressor (3) is connected to the second compressor (5) via the heating device (4) through the circulating working fluid channel, and the compressor (3) is connected to the second compressor (5) via the heating device (4) and the second regenerator (16) through the circulating working fluid channel, thus forming a catalyst regeneration energy recovery heat pump system.

10. A catalyst regeneration energy recovery heat pump system is a catalyst regeneration energy recovery heat pump system according to any one of claims 1-7, wherein a second regenerator (16) is added, and the low-temperature heat exchanger (11) is connected to the compressor (3) through the regenerator (10) via a circulating working fluid channel. After the low-temperature heat exchanger (11) is connected to the compressor (3) via a circulating working fluid channel, the compressor (3) is connected to itself through the regenerator (10) and the second regenerator (16). The compressor (3) is connected to the second compressor (5) through the heater (4) via a circulating working fluid channel. After the compressor (3) is connected to the second compressor (5) via the heater (4) and the second regenerator (16), a catalyst regeneration energy recovery heat pump system is formed.

11. A catalyst regeneration energy recovery heat pump system is a catalyst regeneration energy recovery heat pump system according to any one of claims 1-7, wherein a second regenerator (16) is added, the low-temperature heat exchanger (11) is connected to the compressor (3) via the regenerator (10) through the circulating working fluid channel, and the low-temperature heat exchanger (11) is connected to the compressor (3) via the regenerator (10) and the second regenerator (16) through the circulating working fluid channel, and the heating furnace (7) is connected to the expander (8) via the circulating working fluid channel, and the expander (8) is then connected to itself via the second regenerator (16) through the circulating working fluid channel, thus forming a catalyst regeneration energy recovery heat pump system.

12. A catalyst regeneration energy recovery heat pump system is a catalyst regeneration energy recovery heat pump system according to any one of claims 1-7, wherein a second regenerator (16) is added, the compressor (3) is connected to the heater (4) via a circulating working fluid channel, and the compressor (3) is connected to itself via the second regenerator (16), and the heater (4) is connected to the heater (4) via a circulating working fluid channel, and the furnace (7) is connected to the expander (8) via a circulating working fluid channel, and the expander (8) is connected to itself via the second regenerator (16), thus forming a catalyst regeneration energy recovery heat pump system.

13. A catalyst regeneration energy recovery heat pump system is formed by adding a dual-energy compressor (17) to replace compressor (3) in any of the catalyst regeneration energy recovery heat pump systems described in claims 1-12, adding a second dual-energy compressor (18) to replace second compressor (5), adding an expander speed increaser (19) to replace expander (8), and adding a third dual-energy compressor (20) to replace third compressor (9).

14. A catalyst regeneration energy recovery heat pump system is formed by adding a dual-energy compressor (17) to replace the compressor (3) in any of the catalyst regeneration energy recovery heat pump systems described in claims 1-12, adding a second dual-energy compressor (18) to replace the second compressor (5), adding an expander speed increaser (19) to replace the expander (8), and adding a diffuser tube (21) to replace the third compressor (9).

15. A catalyst regeneration energy recovery heat pump system is formed by eliminating the low-temperature heat exchanger (11) and its low-temperature heat medium channel connected to the outside in any of the catalyst regeneration energy recovery heat pump systems described in claims 1-7, 9, and 11-12, adjusting the expansion machine (8) to have a circulating working fluid channel connected to the low-temperature heat exchanger (11) so that the expansion machine (8) has a low-temperature heat medium channel connected to the outside, adjusting the low-temperature heat exchanger (11) to have a circulating working fluid channel connected to the regenerator (10) so that the outside has a low-temperature heat medium channel connected to the regenerator (10), and adjusting the low-temperature heat exchanger (11) to have a circulating working fluid channel connected to the third compressor (9) so that the outside has a low-temperature heat medium channel connected to the third compressor (9), thereby forming a catalyst regeneration energy recovery heat pump system.

16. A catalyst regeneration energy recovery heat pump system is a catalyst regeneration energy recovery heat pump system according to any one of claims 8 or 10, wherein the low-temperature heat exchanger (11) and its low-temperature heat medium channel connected to the outside are removed, the expander (8) is connected to the low-temperature heat exchanger (11) through a circulating working fluid channel, and the expander (8) is connected to the compressor (3) through a circulating working fluid channel, and the low-temperature heat exchanger (11) is connected to the compressor (3) through a low-temperature heat medium channel, and the low-temperature heat exchanger (11) is connected to the third compressor (9) through a circulating working fluid channel, and the low-temperature heat medium channel is connected to the third compressor (9) through a low-temperature heat medium channel, thus forming a catalyst regeneration energy recovery heat pump system.

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