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 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 is communicated with the second compressor through the heat regenerator and the heat supplier, the second compressor is communicated with the expansion machine through the heat regenerator, the heat exchanger and the heating furnace, and the third compressor is communicated with the second heat regenerator and then communicated with the expansion machine through a middle low-pressure port. The expansion machine is divided into two paths after passing through the low-temperature heat exchanger, the first path is communicated with the compressor through the second heat regenerator, and the second path is communicated 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 regenerator, a heat exchanger, a furnace, an expander, a third compressor, a second 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 regenerator and 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 regenerator, heat exchanger, and heater. The second compressor has a low-pressure circulating working fluid channel that connects to the second regenerator and then to the expander via an intermediate 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 second 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 regenerator, a heat exchanger, a furnace, an expander, a third compressor, a second 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 regenerator and the heater. The second compressor is connected, and the second compressor also has a circulating working fluid channel that connects to the expander via the regenerator, heat exchanger, and heater. The third compressor has a low-pressure circulating working fluid channel that connects to the second regenerator and then to the expander via an intermediate 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 second 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 second 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 second regenerator, thus forming the catalyst regeneration energy recovery heat pump system.

[0015] 9. 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 third regenerator. The low-temperature heat exchanger is adjusted so that it has a circulating working fluid channel connected to the compressor via the second regenerator, and the low-temperature heat exchanger has a circulating working fluid channel connected to the compressor via the second and third regenerators. The heating furnace is adjusted so that it has a circulating working fluid channel connected to the expander, and the expander then has a circulating working fluid channel connected to itself via the third 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 third regenerator. The compressor is adjusted so that its circulating working fluid channel is connected to the regenerator, and then the compressor has a circulating working fluid channel connected to the regenerator after passing through the third regenerator. The heating furnace is adjusted so that its circulating working fluid channel is connected to the expander, and then the expander has a circulating working fluid channel connected to the expander after passing through the third regenerator, thus forming a catalyst regeneration energy recovery heat pump system.

[0017] 11. A catalyst regeneration energy recovery heat pump system is formed by adjusting the second compressor, which has a circulating working fluid channel connected to the expander via a regenerator, a heat exchanger, and a heating furnace, to a system where the second compressor has a circulating working fluid channel connected to itself via a regenerator, and then the second compressor has a circulating working fluid channel connected to the expander via a heat exchanger and a heating furnace, thus forming a catalyst regeneration energy recovery heat pump system.

[0018] 12. 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.

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

[0020] 14. A 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 and 9-10; adjusting the connection between the expander's circulating working fluid channel and the low-temperature heat exchanger to the expansioner having a 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 second regenerator to the outside having a low-temperature heat medium channel connected to the second regenerator; and adjusting the connection between the low-temperature heat exchanger's circulating working fluid channel and the third compressor to the outside having a low-temperature heat medium channel connected to the third compressor.

[0021] 15. A 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 item 8; 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 compressor to the outside's low-temperature heat medium channel connected to the compressor; 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, thus forming a catalyst regeneration energy recovery heat pump system.

[0022] 16. A catalyst regeneration energy recovery heat pump system is formed by adjusting the second compressor, which has a circulating working fluid channel connected to the expander via a regenerator, a heat exchanger, and a heating furnace, to a system where the second compressor has a circulating working fluid channel connected to itself via a regenerator, and then the second compressor has a circulating working fluid channel connected to the expander via a heat exchanger and a heating furnace. 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] In the diagram, 1-Heat source regenerator, 2-Coke-regeneration system, 3-Compressor, 4-Heater, 5-Second compressor, 6-Regenerator, 7-Heat exchanger, 8-Heating furnace, 9-Expander, 10-Third compressor, 11-Second regenerator, 12-Low-temperature heat exchanger, 13-Auxiliary combustion chamber, 14-Air compressor, 15-Smoke machine, 16-Second smoke machine, 17-Third regenerator, 18-Dual-energy compressor, 19-Second dual-energy compressor, 20-Expander speed increaser, 21-Third dual-energy compressor, 22-Diffuser tube; where ①The low-temperature heat exchanger during transcritical cycles is an evaporator; ②The separation and purification components required by the coke-regeneration system are considered integral parts of the coke-regeneration system and are not listed separately. Detailed implementation method:

[0037] 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.

[0038] Figure 1 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0039] (1) Structurally, it mainly consists of a heat source regenerator, a coke-regeneration system, a compressor, a heater, a second compressor, a regenerator, a heat exchanger, a heating furnace, an expander, a third compressor, a second 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 7 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 8. The heating furnace 8 also has a flue gas passage that connects to the outside via the heat exchanger 7 and the heat source regenerator 1. The compressor 3 has a circulating working fluid passage that connects to the second compressor 5 via the regenerator 6 and the heater 4. The second compressor 5 has a circulating working fluid channel that connects to the expander 9 via the regenerator 6, heat exchanger 7, and heater 8. The third compressor 10 has a low-pressure circulating working fluid channel that connects to the second regenerator 11 and then to the expander 9 via an intermediate low-pressure port. The expander 9 also has a circulating working fluid channel that connects to the low-temperature heat exchanger 12 and then splits into two paths—the first path connects to the compressor 3 via the second regenerator 11, and the second path connects to the third compressor 10. The heater 4 also has a heated medium channel that connects to the outside, and the low-temperature heat exchanger 12 also has a low-temperature heat medium channel that connects to the outside. The expander 9 connects to the compressor 3, the second compressor 5, and the third compressor 10 and transmits power.

[0040] (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 in two separate paths; the flue gas generated by the coke burning-regeneration system 2 and after separation and purification (with low or almost no CO content) flows through the heat exchanger 7 and the heat source regenerator 1 to gradually release heat and cool down, and then is discharged to the outside .... After separation and purification, the CO-rich flue gas enters the heater 8, where it undergoes combustion to generate high-temperature flue gas. This high-temperature flue gas releases heat to the circulating working fluid flowing through it, then flows through the heat exchanger 7 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 regenerator 6 and the heater 4, gradually releasing heat and cooling down, then flows through the second compressor 5 to increase its pressure and temperature, then flows through the regenerator 6, the heat exchanger 7, and the heater 8 to gradually absorb heat and increase its temperature, then flows through the expander 9 to decrease its pressure and perform work, and finally supplies it to the low-temperature heat exchanger 1. 2; The low-pressure circulating working fluid discharged from the third compressor 10 flows through the second regenerator 11 to release heat and cool down, and then enters the expander 9 through the intermediate low-pressure port to reduce pressure and do work, and then provides it to the low-temperature heat exchanger 12; The circulating working fluid absorbs heat and heats up in the low-temperature heat exchanger 12, and then splits into two paths - the first path flows through the second regenerator 11 to absorb heat and heat up before entering the compressor 3 to increase pressure and temperature, and the second path enters the third compressor 10 to increase pressure and temperature; The flue gas and CO-rich flue gas discharged from the coke-regeneration system 2 provide the driving heat load, and the air and flue gas pass through the heat source flow. The low-temperature heat load is removed, 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 12; the mechanical energy output by the expander 9 is provided to the compressor 3, the second compressor 5 and the third compressor 10 as power, or the mechanical energy output by the expander 9 is provided to the compressor 3, the second compressor 5 and the third compressor 10 and the outside as power, or the expander 9 and the outside jointly provide power to the compressor 3, the second compressor 5 and the third compressor 10, forming a catalyst regeneration energy recovery heat pump system.

[0041] Figure 2 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0042] exist Figure 1 In the catalyst regeneration energy recovery heat pump system shown, the heating furnace 8 is equipped with a fuel channel that connects to the outside. The CO-rich flue gas and fuel are burned in the heating furnace 8 to form high-temperature flue gas. The high-temperature flue gas releases heat to the circulating working fluid flowing through the heating furnace 8, and then provides it to the heat exchanger 7 to form the catalyst regeneration energy recovery heat pump system.

[0043] Figure 3 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0044] (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 8.

[0045] (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 8; fuel, air and CO-rich flue gas are burned in the heating furnace 8 to generate high-temperature flue gas, and the high-temperature flue gas releases heat to the circulating working fluid flowing through the heating furnace 8, and then is supplied to the heat exchanger 7 to form the catalyst regeneration energy recovery heat pump system.

[0046] Figure 4 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0047] (1) Structurally, in Figure 1 In the catalyst regeneration energy recovery heat pump system shown, an auxiliary combustion chamber 13 is added, and an external fuel channel is connected to the auxiliary combustion chamber 13. The coke-regeneration system 2, which was previously connected to the heat exchanger 7 via a flue gas channel, is now connected to the auxiliary combustion chamber 13 via a flue gas channel. The auxiliary combustion chamber 13 is then connected to the heat exchanger 7 via a flue gas channel.

[0048] (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 13, and the flue gas emitted by the coke-regeneration system 2 enters the auxiliary combustion chamber 13. The fuel and flue gas are burned in the auxiliary combustion chamber 13 to form flue gas at a higher temperature, which is then supplied to the heat exchanger 7 to form the catalyst regeneration energy recovery heat pump system.

[0049] Figure 5 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0050] (1) Structurally, it mainly consists of a heat source regenerator, a coke-regeneration system, a compressor, a heater, a second compressor, a regenerator, a heat exchanger, a heating furnace, an expander, a third compressor, a second 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 14 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 15, the heat exchanger 7, 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 8 via the second flue gas fan 16. The heating furnace 8 also has a flue gas passage that connects to the outside via the heat exchanger 7 and the heat source regenerator 1. The compressor 3 has a circulating working fluid passage that connects to the second compressor via the regenerator 6 and the heater 4. Compressor 5 is connected to the second compressor 5, which also has a circulating working fluid channel that connects to expander 9 via regenerator 6, heat exchanger 7, and heater 8. The third compressor 10 has a low-pressure circulating working fluid channel that connects to the second regenerator 11 and then to expander 9 via an intermediate low-pressure port. Expander 9 also has a circulating working fluid channel that connects to low-temperature heat exchanger 12 and then splits into two paths—the first path connects to compressor 3 via the second regenerator 11, and the second path connects to third compressor 10. Heater 4 also has a heated medium channel that connects to the outside, and low-temperature heat exchanger 12 also has a low-temperature heat medium channel that connects to the outside. Expander 9 connects to compressor 3, second compressor 5, and third compressor 10 and transmits power. Smoke hood 15 and second smoke hood 16 connect to air compressor 14 and transmit power.

[0051] (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 14 to increase pressure and temperature, and then enters heat source regenerator 1 to absorb heat and increase temperature; the flue gas (with little or no CO content) generated and discharged after separation and purification by coke-regeneration system 2 is provided to flue gas fan 15, the flue gas flows through flue gas fan 15 to reduce pressure and do work, and then enters heat exchanger 7 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 16 to reduce pressure and do work, and then is provided to heating furnace 8; the mechanical energy output by expander 9, flue gas fan 15 and second flue gas fan 16 is provided to compressor 3, second compressor 5 and third compressor 10 as power, or the mechanical energy output by expander 9, flue gas fan 15 and second flue gas fan 16 is provided to compressor 3, second compressor 5, third compressor 10 and external environment as power, or expander 9, flue gas fan 15, second flue gas fan 16 and external environment jointly provide power to compressor 3, second compressor 5 and third compressor 10, forming a catalyst regeneration energy recovery heat pump system.

[0052] Figure 6 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0053] (1) Structurally, in Figure 5 In the catalyst regeneration energy recovery heat pump system shown, an auxiliary combustion chamber 13 is added, and an external fuel channel is connected to the auxiliary combustion chamber 13. The coke-regeneration system 2, which was previously connected to the flue gas duct 15, is now connected to the auxiliary combustion chamber 13, and the auxiliary combustion chamber 13 is further connected to the flue gas duct 15.

[0054] (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 13, and the flue gas emitted by the coke burning-regeneration system 2 enters the auxiliary combustion chamber 13. The fuel and flue gas are burned in the auxiliary combustion chamber 13 to form flue gas at a higher temperature, which is then supplied to the flue gas motor 15, thus forming the catalyst regeneration energy recovery heat pump system.

[0055] Figure 7 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0056] (1) Structurally, in Figure 1 In the catalyst regeneration energy recovery heat pump system shown, the low-temperature heat exchanger 12 is connected to the compressor 3 via the second regenerator 11 through a circulating working fluid channel. After the low-temperature heat exchanger 12 is connected to the compressor 3 through a circulating working fluid channel, the compressor 3 is then connected to itself via the second regenerator 11 through a circulating working fluid channel.

[0057] (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 12 enters the compressor 3 to increase its pressure and temperature. After reaching a certain level, it flows through the second regenerator 11 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.

[0058] Figure 8 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0059] (1) Structurally, in Figure 1 In the catalyst regeneration energy recovery heat pump system shown, a third regenerator 17 is added. The low-temperature heat exchanger 12 is adjusted so that it has a circulating working fluid channel that connects to the compressor 3 via the second regenerator 11 and the third regenerator 17. The heating furnace 8 is adjusted so that it has a circulating working fluid channel that connects to the expander 9, and then the expander 9 has a circulating working fluid channel that connects to itself via the third regenerator 17.

[0060] (2) In terms of process, with Figure 1Compared to the catalyst regeneration energy recovery heat pump system shown, the difference is that: the circulating working fluid discharged from the heating furnace 8 enters the expander 9 to reduce pressure and do work. After reaching a certain level, it flows through the third regenerator 17 to release heat and cool down, and then enters the expander 9 to continue to reduce pressure and do work. After that, it is supplied to the low-temperature heat exchanger 12. The first circulating working fluid discharged from the low-temperature heat exchanger 12 flows through the second regenerator 11 and the third regenerator 17 to gradually absorb heat and increase temperature. After that, it enters the compressor 3 to increase pressure and temperature, forming the catalyst regeneration energy recovery heat pump system.

[0061] Figure 9 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0062] (1) Structurally, in Figure 1 In the catalyst regeneration energy recovery heat pump system shown, a third regenerator 17 is added. The compressor 3 is connected to the regenerator 6 via a circulating working fluid channel. The compressor 3 is then connected to the regenerator 6 via the third regenerator 17. The furnace 8 is connected to the expander 9 via a circulating working fluid channel. The expander 9 is then connected to the furnace 8 via the third regenerator 17.

[0063] (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 heating furnace 8 enters the expander 9 to reduce pressure and do work. After reaching a certain level, it flows through the third regenerator 17 to release heat and cool down, and then enters the expander 9 again to continue reducing pressure and doing work. After that, it is supplied to the low-temperature heat exchanger 12. The first circulating working fluid discharged from the low-temperature heat exchanger 12 flows through the second regenerator 11 to absorb heat and increase temperature. After entering the compressor 3 to increase pressure and temperature to a certain level, it flows through the third regenerator 17 to absorb heat and increase temperature. After that, it enters the compressor 3 again to continue increasing pressure and temperature, thus forming the catalyst regeneration energy recovery heat pump system.

[0064] Figure 10 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0065] (1) Structurally, in Figure 1 In the catalyst regeneration energy recovery heat pump system shown, the second compressor 5 is adjusted to have a circulating working fluid channel connected to the expander 9 via the regenerator 6, heat exchanger 7, and heater 8. After the second compressor 5 has a circulating working fluid channel connected to itself via the regenerator 6, the second compressor 5 then has a circulating working fluid channel connected to the expander 9 via the heat exchanger 7 and heater 8.

[0066] (2) In terms of process, with Figure 1Compared to the catalyst regeneration energy recovery heat pump system shown, the difference is that the circulating working fluid discharged from the heater 4 enters the second compressor 5 to increase its pressure and temperature. After reaching a certain level, it flows through the regenerator 6 to absorb heat and increase its temperature. It then enters the second compressor 5 to continue to increase its pressure and temperature, and then enters the heat exchanger 7 to absorb heat and increase its temperature, thus forming the catalyst regeneration energy recovery heat pump system.

[0067] Figure 11 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0068] (1) Structurally, in Figure 1 In the catalyst regeneration energy recovery heat pump system shown, a dual-energy compressor 18 is added and replaces compressor 3, a second dual-energy compressor 19 is added and replaces second compressor 5, an expander accelerator 20 is added and replaces expander 9, and a third dual-energy compressor 21 is added and replaces third compressor 10.

[0069] (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 dual-energy compressor 18 flows through the regenerator 6 and the heater 4, gradually releasing heat and cooling down. It then flows through the second dual-energy compressor 19, where it is pressurized, heated, and slowed down. It then flows through the regenerator 6, heat exchanger 7, and heater 8, gradually absorbing heat and heating up. Finally, it flows through the expander 20, where it is depressurized, performs work, and accelerates, before being supplied to the low-temperature heat exchanger 12. The low-pressure circulating working fluid discharged from the third dual-energy compressor 21 flows through the second regenerator 11, releasing heat and cooling down. It then enters the expander 20 through the intermediate low-pressure port, where it is depressurized, performs work, and accelerates, before being supplied to the low-temperature heat exchanger 12. The circulating working fluid then absorbs heat and heats up in the low-temperature heat exchanger 12. The flow is then split into two paths: the first path flows through the second regenerator 11 to absorb heat and increase temperature before entering the dual-energy compressor 18 for pressurization, heating, and deceleration; the second path enters the third dual-energy compressor 21 for pressurization, heating, and deceleration. The mechanical energy output by the expander accelerator 20 provides power to the dual-energy compressor 18, the second dual-energy compressor 19, and the third dual-energy compressor 21, or the mechanical energy output by the expander accelerator 20 provides power to the dual-energy compressor 18, the second dual-energy compressor 19, the third dual-energy compressor 21, and external sources, or the expander accelerator 20 and external sources jointly provide power to the dual-energy compressor 18, the second dual-energy compressor 19, and the third dual-energy compressor 21, forming a catalyst regeneration energy recovery heat pump system.

[0070] Figure 12 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0071] (1) Structurally, in Figure 1In the catalyst regeneration energy recovery heat pump system shown, a dual-energy compressor 18 is added and replaces compressor 3, a second dual-energy compressor 19 is added and replaces second compressor 5, an expander accelerator 20 is added and replaces expander 9, and a diffuser tube 22 is added and replaces third compressor 10.

[0072] (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 dual-energy compressor 18 flows through the regenerator 6 and the heater 4, gradually releasing heat and cooling down. It then flows through the second dual-energy compressor 19, where it is pressurized, heated, and slowed down. It then flows through the regenerator 6, heat exchanger 7, and heater 8, gradually absorbing heat and heating up. Finally, it flows through the expander 20, where it is depressurized, performs work, and accelerates, before being supplied to the low-temperature heat exchanger 12. The low-pressure circulating working fluid discharged from the diffuser 22 flows through the second regenerator 11, releasing heat and cooling down. It then enters the expander 20 through the intermediate low-pressure port, where it is depressurized, performs work, and accelerates, before being supplied to the low-temperature heat exchanger 12. After absorbing heat and heating up in the low-temperature heat exchanger 12, the energy is divided into two streams: the first stream flows through the second regenerator 11 to absorb heat and heat up before entering the dual-energy compressor 18 for pressurization, heating, and deceleration; the second stream enters the diffuser 22 for pressurization, heating, and deceleration. The mechanical energy output by the expander accelerator 20 provides power to the dual-energy compressor 18 and the second dual-energy compressor 19, or the mechanical energy output by the expander accelerator 20 provides power to the dual-energy compressor 18, the second dual-energy compressor 19, and external components, or the expander accelerator 20 and external components jointly provide power to the dual-energy compressor 18 and the second dual-energy compressor 19, forming a catalyst regeneration energy recovery heat pump system.

[0073] Figure 13 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0074] (1) Structurally, in Figure 1 In the catalyst regeneration energy recovery heat pump system shown, the low-temperature heat exchanger 12 and its low-temperature heat medium channel connected to the outside are removed. The expansion machine 9 is changed from having a circulating working fluid channel connected to the low-temperature heat exchanger 12 to having a low-temperature heat medium channel connected to the outside. The low-temperature heat exchanger 12 is changed from having a circulating working fluid channel connected to the second regenerator 11 to having an external low-temperature heat medium channel connected to the second regenerator 11. The low-temperature heat exchanger 12 is changed from having a circulating working fluid channel connected to the third compressor 10 to having an external low-temperature heat medium channel connected to the third compressor 10.

[0075] (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 external first-path low-temperature heat medium flows through the second regenerator 11 to absorb heat and increase temperature, flows through the compressor 3 to increase pressure and temperature, flows through the regenerator 6 and the heater 4 to gradually release heat and decrease temperature, flows through the second compressor 5 to increase pressure and temperature, flows through the regenerator 6, heat exchanger 7 and heater 8 to gradually absorb heat and increase temperature, and then enters the expander 9 to reduce pressure and perform work and be discharged to the outside; the external second-path low-temperature heat medium flows through the third compressor 10 to increase pressure and increase temperature, flows through the second regenerator 11 to release heat and decrease temperature, and then enters the expander 9 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.

[0076] The effects achievable by this invention—the catalyst regeneration energy recovery heat pump system proposed in this invention has the following effects and advantages:

[0077] (1) Technical measures were proposed to improve the thermal energy grade of the catalyst regeneration process and to utilize it for refrigeration / heating.

[0078] (2) Reduce irreversible temperature loss during catalyst regeneration and increase the temperature of the initial driving heat source.

[0079] (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.

[0080] (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.

[0081] (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 the regenerated flue gas energy.

[0082] (6) Achieve efficient / high-value utilization of flue gas energy with relatively simple technical measures, reduce costs, and improve economic efficiency.

[0083] (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.

[0084] (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. A catalyst regeneration energy recovery heat pump system, mainly composed of a heat source regenerator, a coke burning-regeneration system, a compressor, a heater, a second compressor, a regenerator, a heat exchanger, a heating furnace, an expander, a third compressor, a second regenerator and a low temperature heat exchanger; externally, an air passage is connected with the heat source regenerator (1) and the coke burning-regeneration system (2), the coke burning-regeneration system (2) also has a flue gas passage connected with the outside through the heat exchanger (7) and the heat source regenerator (1), the coke burning-regeneration system (2) also has a CO-rich flue gas passage connected with the heating furnace (8), the heating furnace (8) also has a flue gas passage connected with the outside through the heat exchanger (7) and the heat source regenerator (1), the compressor (3) has a circulating working medium passage connected with the second compressor (5) through the regenerator (6) and the heater (4), the second compressor (5) also has a circulating working medium passage connected with the expander (9) through the regenerator (6), the heat exchanger (7) and the heating furnace (8), the third compressor (10) has a low pressure circulating working medium passage connected with the second regenerator (11) and then connected with the expander (9) through an intermediate low pressure port, the expander (9) also has a circulating working medium passage connected with the low temperature heat exchanger (12) and then divided into two routes, the first route connected with the compressor (3) through the second regenerator (11) and the second route connected with the third compressor (10); the heater (4) also has a heated medium passage connected with the outside, the low temperature heat exchanger (12) also has a low temperature heat medium passage connected with the outside, the expander (9) is connected with the compressor (3), the second compressor (5) and the third compressor (10) and transmits power, forming the catalyst regeneration energy recovery heat pump system.

2. The catalyst regeneration energy recovery heat pump system is in the catalyst regeneration energy recovery heat pump system of claim 1, the heating furnace (8) is additionally provided with a fuel passage connected with the outside, forming the catalyst regeneration energy recovery heat pump system.

3. The catalyst regeneration energy recovery heat pump system is in the catalyst regeneration energy recovery heat pump system of claim 1 or claim 2, the air passage of the heat source regenerator (1) connected with the coke burning-regeneration system (2) is adjusted to the air passage of the heat source regenerator (1) divided into two routes, the first route connected with the coke burning-regeneration system (2) and the second route connected with the heating furnace (8), forming the catalyst regeneration energy recovery heat pump system.

4. The catalyst regeneration energy recovery heat pump system is in any one of the catalyst regeneration energy recovery heat pump systems of claims 1-3, an auxiliary combustion chamber (13) is additionally provided, the outside has a fuel passage connected with the auxiliary combustion chamber (13), the flue gas passage of the coke burning-regeneration system (2) connected with the heat exchanger (7) is adjusted to the flue gas passage of the coke burning-regeneration system (2) connected with the auxiliary combustion chamber (13), the auxiliary combustion chamber (13) also has a flue gas passage connected with the heat exchanger (7), forming the catalyst regeneration energy recovery heat pump system.

5. The catalyst regeneration energy recovery heat pump system is mainly composed of heat source regenerator, coke burning-regeneration system, compressor, heat supplier, second compressor, regenerator, heat exchanger, heating furnace, expander, third compressor, second regenerator, low temperature heat exchanger, air compressor, smoke machine and second smoke machine. The external air channel is connected with the coke burning-regeneration system (2) through the air compressor (14) and the heat source regenerator (1). The coke burning-regeneration system (2) has a flue gas channel connected with the outside through the smoke machine (15), the heat exchanger (7) and the heat source regenerator (1). The coke burning-regeneration system (2) has a CO-rich flue gas channel connected with the heating furnace (8) through the second smoke machine (16). The heating furnace (8) has a flue gas channel connected with the outside through the heat exchanger (7) and the heat source regenerator (1). The compressor (3) has a circulating working medium channel connected with the second compressor (5) through the regenerator (6) and the heat supplier (4). The second compressor (5) has a circulating working medium channel connected with the expander (9) through the regenerator (6), the heat exchanger (7) and the heating furnace (8). The third compressor (10) has a low pressure circulating working medium channel connected with the second regenerator (11) and then connected with the expander (9) through the intermediate low pressure port. The expander (9) has a circulating working medium channel connected with the low temperature heat exchanger (12) and then divided into two paths. The first path is connected with the compressor (3) through the second regenerator (11). The second path is connected with the third compressor (10). The heat supplier (4) has a heated medium channel connected with the outside. The low temperature heat exchanger (12) has a low temperature heat medium channel connected with the outside. The expander (9) is connected with the compressor (3), the second compressor (5) and the third compressor (10) and transmits power. The smoke machine (15) and the second smoke machine (16) are connected with the air compressor (14) and transmit power. The catalyst regeneration energy recovery heat pump system is formed.

6. The catalyst regeneration energy recovery heat pump system is formed by adding a fuel channel connected with the outside to the heating furnace (8) in the catalyst regeneration energy recovery heat pump system of claim 5.

7. The catalyst regeneration energy recovery heat pump system is formed by adding an auxiliary combustion chamber (13) in the catalyst regeneration energy recovery heat pump system of claim 5 or claim 6. The catalyst regeneration energy recovery heat pump system is formed by adjusting the flue gas channel of the coke burning-regeneration system (2) connected with the smoke machine (15) to the flue gas channel of the coke burning-regeneration system (2) connected with the auxiliary combustion chamber (13). The auxiliary combustion chamber (13) has a flue gas channel connected with the smoke machine (15).

8. The catalyst regeneration energy recovery heat pump system is formed by adjusting the circulating working medium channel of the low temperature heat exchanger (12) connected with the compressor (3) through the second regenerator (11) and the third compressor (10) connected with the expander (9) through the intermediate low pressure port to the circulating working medium channel of the low temperature heat exchanger (12) connected with the compressor (3) through the second regenerator (11) and the third compressor (10) connected with the expander (9) through the intermediate low pressure port in any one of the catalyst regeneration energy recovery heat pump systems of claims 1-7. The low-temperature heat exchanger (12) has a circulating working medium passage, which is communicated with the compressor (3) and then communicated with the compressor (3) again through the second regenerator (11), forming the catalyst regeneration energy recovery heat pump system.

9. The catalyst regeneration energy recovery heat pump system is any one of the catalyst regeneration energy recovery heat pump systems in claims 1-7, a third regenerator (17) is added, the circulating working medium passage of the low-temperature heat exchanger (12) is communicated with the compressor (3) through the second regenerator (11), and then the circulating working medium passage of the low-temperature heat exchanger (12) is communicated with the compressor (3) through the second regenerator (11) and the third regenerator (17), the circulating working medium passage of the heating furnace (8) is communicated with the expander (9), and then the circulating working medium passage of the expander (9) is communicated with itself through the third regenerator (17), forming the catalyst regeneration energy recovery heat pump system.

10. The catalyst regeneration energy recovery heat pump system is any one of the catalyst regeneration energy recovery heat pump systems in claims 1-7, a third regenerator (17) is added, the circulating working medium passage of the compressor (3) is communicated with the regenerator (6), and then the circulating working medium passage of the compressor (3) is communicated with the regenerator (6) again through the third regenerator (17), the circulating working medium passage of the heating furnace (8) is communicated with the expander (9), and then the circulating working medium passage of the expander (9) is communicated with itself through the third regenerator (17), forming the catalyst regeneration energy recovery heat pump system.

11. The catalyst regeneration energy recovery heat pump system is any one of the catalyst regeneration energy recovery heat pump systems in claims 1-11, the circulating working medium passage of the second compressor (5) is communicated with the expander (9) through the regenerator (6), the heat exchanger (7) and the heating furnace (8), and then the circulating working medium passage of the second compressor (5) is communicated with itself through the regenerator (6), and then the circulating working medium passage of the second compressor (5) is communicated with the expander (9) through the heat exchanger (7) and the heating furnace (8), forming the catalyst regeneration energy recovery heat pump system.

12. The catalyst regeneration energy recovery heat pump system is any one of the catalyst regeneration energy recovery heat pump systems in claims 1-12, a double-energy compressor (18) is added and replaces the compressor (3), a second double-energy compressor (19) is added and replaces the second compressor (5), an expansion speed increaser (20) is added and replaces the expander (9), a third double-energy compressor (21) is added and replaces the third compressor (10), forming the catalyst regeneration energy recovery heat pump system.

13. The catalyst regeneration energy recovery heat pump system is in any one of the catalyst regeneration energy recovery heat pump system of claims 1-12, adding a double-energy compressor (18) and replacing the compressor (3), adding a second double-energy compressor (19) and replacing the second compressor (5), adding an expansion speeder (20) and replacing the expander (9), adding a diffuser (22) and replacing the third compressor (10), forming a catalyst regeneration energy recovery heat pump system.

14. The catalyst regeneration energy recovery heat pump system is in any one of the catalyst regeneration energy recovery heat pump system of claims 1-7, 9-10, canceling the low-temperature heat exchanger (12) and its low-temperature heat medium passage connected with the outside, adjusting the circulating working medium passage of the expander (9) connected with the low-temperature heat exchanger (12) to the low-temperature heat medium passage of the expander (9) connected with the outside, adjusting the circulating working medium passage of the low-temperature heat exchanger (12) connected with the second regenerator (11) to the low-temperature heat medium passage of the outside connected with the second regenerator (11), adjusting the circulating working medium passage of the low-temperature heat exchanger (12) connected with the third compressor (10) to the low-temperature heat medium passage of the outside connected with the third compressor (10), forming a catalyst regeneration energy recovery heat pump system.

15. The catalyst regeneration energy recovery heat pump system is in any one of the catalyst regeneration energy recovery heat pump system of claim 8, canceling the low-temperature heat exchanger (12) and its low-temperature heat medium passage connected with the outside, adjusting the circulating working medium passage of the expander (9) connected with the low-temperature heat exchanger (12) to the low-temperature heat medium passage of the expander (9) connected with the outside, adjusting the circulating working medium passage of the low-temperature heat exchanger (12) connected with the compressor (3) to the low-temperature heat medium passage of the outside connected with the compressor (3), adjusting the circulating working medium passage of the low-temperature heat exchanger (12) connected with the third compressor (10) to the low-temperature heat medium passage of the outside connected with the third compressor (10), forming a catalyst regeneration energy recovery heat pump system.

16. The catalyst regeneration energy recovery heat pump system is in any one of the catalyst regeneration energy recovery heat pump system of claims 14-15, adjusting the circulating working medium passage of the second compressor (5) connected with the expander (9) through the regenerator (6), the heat exchanger (7) and the heating furnace (8) to the circulating working medium passage of the second compressor (5) connected with itself through the regenerator (6) and then the circulating working medium passage of the second compressor (5) connected with the expander (9) through the heat exchanger (7) and the heating furnace (8), forming a catalyst regeneration energy recovery heat pump system.

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