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 provided with a flue gas channel which is communicated with the outside through a heat exchanger and the heat source regenerator, the charring-regeneration system is provided with a CO-rich flue gas channel which is communicated with a combustion chamber, and the combustion chamber is provided with a flue gas channel which is communicated with the outside through the heat exchanger and the heat source regenerator. The low-temperature expansion machine is communicated with the compressor through a middle port after being communicated with the heat regenerator through a circulating working medium channel; the compressor further comprises a cycle working medium channel which is divided into two paths after passing through a heat exchanger, a combustion chamber, a high-temperature expansion machine and a heat supplier, the first path is communicated with a low-temperature expansion machine, the second path is communicated with a heat regenerator, and the heat regenerator further comprises a cycle working medium channel which is communicated with an evaporator through a throttling valve; the heat supplier is communicated with the outside through a heated medium channel, the evaporator is communicated with the outside through a low-temperature heat medium channel, and 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 high-temperature expander, a compressor, a low-temperature expander, a throttling valve, a regenerator, a combustion chamber, a heat exchanger, a heater, and an evaporator. 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 combustion chamber. The combustion chamber also has a flue gas passage connected to the outside via the heat exchanger and the heat source regenerator. The evaporator has a circulating working fluid passage connected to the compressor. The low-temperature expander... The machine has a circulating working fluid channel connected to the regenerator, and then connected to the compressor through an intermediate port. The compressor also has a circulating working fluid channel connected to the high-temperature expander via a heat exchanger and combustion chamber. The high-temperature expander also has a circulating working fluid channel connected to the heater, and then splits into two paths—the first path connects to the low-temperature expander and the second path connects to the regenerator. The regenerator also has a circulating working fluid channel connected to the evaporator via a throttling valve. The heater also has a heated medium channel connected to the outside, and the evaporator also has a low-temperature heat medium channel connected to the outside. The high-temperature expander and the low-temperature expander are connected to the compressor and transmit 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 a fuel passage is added to the combustion chamber to connect with the outside, thus forming 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 by 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 combustion chamber, 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 high-temperature expander, a compressor, a low-temperature expander, a throttling valve, a regenerator, a combustion chamber, a heat exchanger, a heater, an evaporator, 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 combustion chamber via the second flue gas fan. The combustion chamber also has a flue gas passage connecting to the outside via the heat exchanger and the heat source regenerator. The evaporator has a circulating working fluid passage connecting to the compressor. The low-temperature expander has a circulating working fluid channel connected to the regenerator and then to the compressor via an intermediate port. The compressor also has a circulating working fluid channel connected to the high-temperature expander via a heat exchanger and combustion chamber. The high-temperature expander also has a circulating working fluid channel connected to the heater and then splits into two paths—the first path connects to the low-temperature expander and the second path connects to the regenerator. The regenerator also has a circulating working fluid channel connected to the evaporator via a throttling valve. The heater also has a heated medium channel connected to the outside, and the evaporator also has a low-temperature heat medium channel connected to the outside. The high-temperature expander and the low-temperature expander are connected to the compressor and transmit power. The flue gas fan and the second flue gas fan are connected 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 a fuel passage is added to the combustion chamber to connect with the outside, thus forming 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. 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 regenerator is adjusted so that it has a circulating working fluid channel connected to the evaporator via a throttling valve, while the regenerator has a circulating working fluid channel connected to the evaporator via the second regenerator and the throttling valve. The evaporator is also adjusted so that it has a circulating working fluid channel connected to the compressor via the second regenerator, thus forming a catalyst regeneration energy recovery heat pump system.

[0015] 9. A catalyst regeneration energy recovery heat pump system is formed by adding a high-temperature regenerator to any of the catalyst regeneration energy recovery heat pump systems described in items 1-8. The compressor's circulating working fluid channel is connected to the heat exchanger, and the circulating working fluid channel of the compressor is connected to the heat exchanger via the high-temperature regenerator. The high-temperature expander's circulating working fluid channel is connected to the heater, and the circulating working fluid channel of the high-temperature expander is connected to the heater via the high-temperature 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 1-8, with the addition of a high-temperature regenerator. The compressor's circulating working fluid channel is adjusted to be connected to the heat exchanger via the high-temperature regenerator, and the high-temperature expander's circulating working fluid channel is adjusted to be connected to the heater via the high-temperature regenerator, and then the high-temperature expander has a circulating working fluid channel connected to the heater, thus forming a catalyst regeneration energy recovery heat pump system.

[0017] 11. The 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 1-10 and replacing the compressor, adding an expander and speed-up unit and replacing the cryogenic expander, and adding a nozzle and replacing the throttle valve.

[0018] 12. The 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 1-10 and replacing the compressor, adding an expander and speed-up unit to replace the high-temperature expander, adding a nozzle to replace the throttle valve, and adding a second expander and speed-up unit to replace the low-temperature expander.

[0019] 13. A catalyst regeneration energy recovery heat pump system is formed by adding a two-phase expander to replace the throttle valve in any of the catalyst regeneration energy recovery heat pump systems described in items 1-10. The two-phase expander is connected to the compressor and transmits power to form a catalyst regeneration energy recovery heat pump system.

[0020] 14. The catalyst regeneration energy recovery heat pump system is the catalyst regeneration energy recovery heat pump system described in item 1, wherein the evaporator and its low-temperature heat medium channel connected to the outside are eliminated, and the regenerator has a circulating working fluid channel connected to the evaporator via a throttling valve and the evaporator has a circulating working fluid channel connected to the compressor. These are adjusted to have the regenerator have a condensate channel connected to the outside and the outside have a steam channel connected to the compressor, thus forming the catalyst regeneration energy recovery heat pump system.

[0021] 15. The catalyst regeneration energy recovery heat pump system is the catalyst regeneration energy recovery heat pump system described in item 8, wherein the evaporator and its low-temperature heat medium channel connected to the outside are eliminated, and the second regenerator is connected to the evaporator via a throttling valve and the evaporator is connected to the compressor via the second regenerator. The second regenerator is then adjusted to have a condensate channel connected to the outside and a steam channel connected to the compressor via the second regenerator, thus forming the catalyst regeneration energy recovery heat pump system. Attached image description:

[0022] Figure 1 This is a principle thermodynamic system diagram of a catalyst regeneration energy recovery heat pump system provided by the present invention.

[0023] Figure 2 This is a second principle thermodynamic system diagram of a catalyst regeneration energy recovery heat pump system provided by the present invention.

[0024] Figure 3 This is a third principle thermodynamic system diagram of a catalyst regeneration energy recovery heat pump system provided by the present invention.

[0025] Figure 4 This is a fourth principle thermodynamic system diagram of a catalyst regeneration energy recovery heat pump system provided by the present invention.

[0026] Figure 5 This is the fifth principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0027] Figure 6 This is the sixth principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0028] Figure 7 This is the seventh principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0029] Figure 8 This is the eighth principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0030] Figure 9 This is the ninth principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0031] Figure 10 This is the tenth principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0032] Figure 11 This is the 11th principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0033] Figure 12 This is the 12th principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0034] Figure 13 This is the 13th principle thermodynamic system diagram of the catalyst regeneration energy recovery heat pump system provided by the present invention.

[0035] In the diagram, 1-Heat source regenerator, 2-Coke combustion-regeneration system, 3-High-temperature expander, 4-Compressor, 5-Low-temperature expander, 6-Throttle valve, 7-Regenerator, 8-Combustion chamber, 9-Heat exchanger, 10-Heater, 11-Evaporator, 12-Auxiliary combustion chamber, 13-Air compressor, 14-Smoke machine, 15-Second smoke machine, 16-Second regenerator, 17-High-temperature regenerator, 18-Dual-energy compressor, 19-Expanding speed increaser, 20-Nozzle, 21-Second expanding speed increaser, 22-Two-phase high-temperature expander; it should be noted that the separation and purification components required for the coke combustion-regeneration system are considered integral parts of the coke combustion-regeneration system and are not listed separately. Detailed implementation method:

[0036] 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.

[0037] Figure 1 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0038] (1) Structurally, it mainly consists of a heat source regenerator, a coke-regeneration system, a high-temperature expander, a compressor, a low-temperature expander, a throttle valve, a regenerator, a combustion chamber, a heat exchanger, a heater, and an evaporator; 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 9 and the heat source regenerator 1, the coke-regeneration system 2 also has a CO-rich flue gas passage that connects to the combustion chamber 8, the combustion chamber 8 also has a flue gas passage that connects to the outside via the heat exchanger 9 and the heat source regenerator 1, the evaporator 11 has a circulating working fluid passage that connects to the compressor 4, and the low-temperature expander After the regenerator 7 is connected to the circulating working fluid channel, it is connected to the compressor 4 through the intermediate port. The compressor 4 also has a circulating working fluid channel that is connected to the high-temperature expander 3 through the heat exchanger 9 and the combustion chamber 8. The high-temperature expander 3 also has a circulating working fluid channel that is connected to the heater 10 and then splits into two paths - the first path is connected to the low-temperature expander 5 and the second path is connected to the regenerator 7. The regenerator 7 also has a circulating working fluid channel that is connected to the evaporator 11 through the throttling valve 6. The heater 10 also has a heated medium channel that is connected to the outside. The evaporator 11 also has a low-temperature heat medium channel that is connected to the outside. The high-temperature expander 3 and the low-temperature expander 5 are connected to the compressor 4 and transmit power.

[0039] (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-regeneration system 2 to participate in combustion; air and catalyst coke coking and undergo a series of processes including combustion to achieve catalyst regeneration; the coke-regeneration system 2 discharges flue gas with different CO contents in two separate paths; the flue gas discharged from the coke-regeneration system 2 (with low or no CO content) is separated and purified and then supplied to the heat exchanger 9; the flue gas flows through the heat exchanger 9 and the heat source regenerator 1 to gradually release heat and decrease in temperature before being discharged to the outside; the CO-rich flue gas discharged from the coke-regeneration system 2 is separated and purified and then enters the combustion chamber 8 to burn and generate high-temperature flue gas; the high-temperature flue gas releases heat to the circulating working fluid flowing through the combustion chamber 8, and then flows through the heat exchanger 9 and the heat source regenerator 1 to gradually release heat and decrease in temperature before being discharged to the outside; the circulating working fluid discharged from the compressor 4 flows through the heat exchanger 9 and the combustion chamber 8 to gradually absorb heat and increase its temperature, flows through the high-temperature expander 3 to decrease pressure and do work, and flows through the heater 10 to release heat and decrease in temperature. The heat is then divided into two paths: the first path flows through the low-temperature expander 5 to reduce pressure and perform work, flows through the regenerator 7 to absorb heat and increase temperature, and enters the compressor 4 through the intermediate air inlet port to increase pressure and temperature; the second path enters the regenerator 7 to release heat and condense. The condensate discharged from the regenerator 7 flows through the throttle valve 6 to reduce pressure and temperature, flows through the evaporator 11 to absorb heat and evaporate or to be further superheated, and then enters the compressor 4 to increase pressure and temperature. The flue gas and CO-rich flue gas emitted by the coke-regeneration system 2 provide the driving heat load. The air and flue gas carry away the low-temperature emission heat load through the heat source flow process. The heated medium obtains the medium-temperature heat load through the heater 10, and the low-temperature heat medium provides the low-temperature heat load through the evaporator 11. The work output by the high-temperature expander 3 and the low-temperature expander 5 provides power to the compressor 4, or the high-temperature expander 3 and the low-temperature expander 5 provide power to the compressor 4 and the outside, or the high-temperature expander 3, the low-temperature expander 5 and the outside jointly provide power to the compressor 4, forming a catalyst regeneration energy recovery heat pump system.

[0040] Figure 2 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0041] exist Figure 1 In the catalyst regeneration energy recovery heat pump system shown, the combustion chamber 8 is equipped with a fuel channel that connects to the outside. The fuel and CO-rich flue gas are burned in the combustion chamber 8 to generate high-temperature flue gas. The high-temperature flue gas releases heat to the circulating working fluid flowing through the combustion chamber 8 and is then supplied to the heat exchanger 9. The increased fuel provides the driving heat load through the combustion chamber 8, forming the catalyst regeneration energy recovery heat pump system.

[0042] Figure 3 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0043] (1) Structurally, in Figure 2In the catalyst regeneration energy recovery heat pump system shown, the heat source regenerator 1 is connected to the coke burning-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 burning-regeneration system 2, and the second path is connected to the combustion chamber 8.

[0044] (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 combustion chamber 8; fuel, air and CO-rich flue gas are burned in the combustion chamber 8 to generate high-temperature flue gas, and the high-temperature flue gas releases heat to the circulating working fluid flowing through the combustion chamber 8, and then is supplied to the heat exchanger 9 to form the catalyst regeneration energy recovery heat pump system.

[0045] Figure 4 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0046] (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 9 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 9 via a flue gas channel.

[0047] (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 9 to form the catalyst regeneration energy recovery heat pump system.

[0048] Figure 5 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0049] (1) Structurally, it mainly consists of a heat source regenerator, a coke-regeneration system, a high-temperature expander, a compressor, a low-temperature expander, a throttle valve, a regenerator, a combustion chamber, a heat exchanger, a heater, an evaporator, 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 9, and the heat source regenerator 1. The coke-regeneration system 2 also has a CO-rich flue gas passage that connects to the combustion chamber 8 via the second flue gas fan 15. The combustion chamber 8 also has a flue gas passage that connects to the outside via the heat exchanger 9 and the heat source regenerator 1. The evaporator 11 has a circulating working fluid passage that connects to the compressor 4. The high-temperature expander 5 has a circulating working fluid channel connected to the regenerator 7, and then connected to the compressor 4 through an intermediate port. The compressor 4 also has a circulating working fluid channel connected to the high-temperature expander 3 via the heat exchanger 9 and the combustion chamber 8. The high-temperature expander 3 also has a circulating working fluid channel connected to the heater 10, and then splits into two paths—the first path is connected to the low-temperature expander 5, and the second path is connected to the regenerator 7. The regenerator 7 also has a circulating working fluid channel connected to the evaporator 11 via the throttling valve 6. The heater 10 also has a heated medium channel connected to the outside, and the evaporator 11 also has a low-temperature heat medium channel connected to the outside. The high-temperature expander 3 and the low-temperature expander 5 are connected to the compressor 4 and transmit power. The smoke hood 14 and the second smoke hood 15 are connected to the air compressor 13 and transmit power.

[0050] (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, flows through heat source regenerator 1 to absorb heat and increase temperature, and then supplies it to coke-regeneration system 2; the flue gas emitted from coke-regeneration system 2 flows through flue gas fan 14 to decrease pressure and do work, and then supplies it to heat exchanger 9; the CO-rich flue gas emitted from coke-regeneration system 2 flows through second flue gas fan 15 to decrease pressure and do work, and then supplies it to combustion chamber 8; the work output by high-temperature expander 3, low-temperature expander 5, flue gas fan 14 and second flue gas fan 15 provides power to compressor 4 and air compressor 13, or high-temperature expander 3, low-temperature expander 5, flue gas fan 14 and second flue gas fan 15 provide power to compressor 4, air compressor 13 and external environment, or high-temperature expander 3, low-temperature expander 5, flue gas fan 14, second flue gas fan 15 and external environment jointly provide power to compressor 4 and air compressor 13, forming a catalyst regeneration energy recovery heat pump system.

[0051] Figure 6 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0052] (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.

[0053] (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.

[0054] Figure 7 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0055] (1) Structurally, in Figure 1 In the catalyst regeneration energy recovery heat pump system shown, a second regenerator is added. The regenerator 7 is changed from having a circulating working fluid channel connected to the evaporator 11 via the throttling valve 6 to having a circulating working fluid channel connected to the evaporator 11 via the second regenerator 16 and the throttling valve 6. The evaporator 11 is changed from having a circulating working fluid channel connected to the compressor 4 to having a circulating working fluid channel connected to the compressor 4 via the second regenerator 16.

[0056] (2) In terms of process, with Figure 1 The difference between the catalyst regeneration energy recovery heat pump system process shown is that: the circulating working fluid discharged from the evaporator 11 flows through the second regenerator 16 to absorb heat and increase temperature, and then enters the compressor 4 to increase pressure and temperature; the second circulating working fluid discharged from the heater 10 flows through the regenerator 7 and the second regenerator 16 to gradually release heat and condense, and then enters the throttling valve 6 to reduce pressure and temperature, thus forming the catalyst regeneration energy recovery heat pump system.

[0057] Figure 8 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0058] (1) Structurally, in Figure 7 In the catalyst regeneration energy recovery heat pump system shown, a high-temperature regenerator 17 is added. The compressor 4 is connected to the heat exchanger 9 via a circulating working fluid channel, and the connection is adjusted so that the compressor 4 is connected to the heat exchanger 9 via the high-temperature regenerator 17. The high-temperature expander 3 is connected to the heater 10 via a circulating working fluid channel, and the connection is adjusted so that the high-temperature expander 3 is connected to the heater 10 via the high-temperature regenerator 17.

[0059] (2) In terms of process, with Figure 7The difference between the catalyst regeneration energy recovery heat pump system process shown is that: the circulating working fluid discharged from the compressor 4 flows through the high-temperature regenerator 17 to absorb heat and increase its temperature, and then provides it to the heat exchanger 9; the circulating working fluid discharged from the high-temperature expander 3 flows through the high-temperature regenerator 17 to release heat and decrease its temperature, and then provides it to the heater 10, thus forming the catalyst regeneration energy recovery heat pump system.

[0060] Figure 9 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0061] (1) Structurally, in Figure 7 In the catalyst regeneration energy recovery heat pump system shown, a high-temperature regenerator 17 is added. The compressor 4 is adjusted so that the circulating working fluid channel is connected to the heat exchanger 9, and the compressor 4 is connected to the heat exchanger 9 via the high-temperature regenerator 17. The high-temperature expander 3 is adjusted so that the circulating working fluid channel is connected to the heater 10, and the high-temperature expander 3 is connected to itself via the high-temperature regenerator 17, and then the high-temperature expander 3 is connected to the heater 10 via a circulating working fluid channel.

[0062] (2) In terms of process, with Figure 7 The difference between the catalyst regeneration energy recovery heat pump system shown is that: the circulating working fluid discharged from the compressor 4 flows through the high-temperature regenerator 17 to absorb heat and increase its temperature, and then provides it to the heat exchanger 9; the circulating working fluid discharged from the combustion chamber 8 enters the high-temperature expander 3 to reduce pressure and do work, and after reaching a certain level, it flows through the high-temperature regenerator 17 to release heat and reduce its temperature, and then enters the high-temperature expander 3 to continue to reduce pressure and do work, and then provides it to the heater 10, thus forming the catalyst regeneration energy recovery heat pump system.

[0063] Figure 10 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0064] (1) Structurally, in Figure 7 In the catalyst regeneration energy recovery heat pump system shown, a dual-energy compressor 18 is added and replaces compressor 4, an expander accelerator 19 is added and replaces cryogenic expander 5, and a nozzle 20 is added and replaces throttle valve 6.

[0065] (2) In terms of process, with Figure 7The difference between the catalyst regeneration energy recovery heat pump system flow diagram shown is as follows: the circulating working fluid discharged from the dual-energy compressor 18 gradually absorbs heat and increases in temperature through the heat exchanger 9 and combustion chamber 8, then flows through the high-temperature expander 3 to reduce pressure and perform work, and flows through the heater 10 to release heat and decrease in temperature. Afterward, it splits into two paths—the first path flows through the expander accelerator 19 to reduce pressure and increase speed, flows through the regenerator 7 to absorb heat and increase temperature, and enters the dual-energy compressor 18 through the intermediate air inlet port to increase pressure, increase temperature, and decrease speed; the second path supplies the regenerator 7; the circulating working fluid releases heat and decreases in temperature as it flows through the regenerator 7 and the second regenerator 16. The condensate flows through the nozzle 20, where its pressure is reduced and its speed is increased. It then flows through the evaporator 11 to absorb heat and evaporate or to be further superheated. After passing through the second regenerator 16, it absorbs heat and increases in temperature. Finally, it enters the dual-energy compressor 18, where its pressure and temperature are increased and its speed is reduced. The power output from the high-temperature expander 3 and the expander speed increaser 19 is used to power the dual-energy compressor 18. Alternatively, the power output from the high-temperature expander 3 and the expander speed increaser 19 is used to power the dual-energy compressor 18 and external components. Or, the high-temperature expander 3, the expander speed increaser 19, and external components jointly provide power to the dual-energy compressor 18, forming a catalyst regeneration energy recovery heat pump system.

[0066] Figure 11 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0067] (1) Structurally, in Figure 7 In the catalyst regeneration energy recovery heat pump system shown, a dual-energy compressor 18 is added and replaces compressor 4, an expander accelerator 19 is added and replaces high-temperature expander 3, a nozzle 20 is added and replaces throttle valve 6, and a second expander accelerator 21 is added and replaces low-temperature expander 5.

[0068] (2) In terms of process, with Figure 7 Compared to the catalyst regeneration energy recovery heat pump system flow shown, the difference lies in the following: the circulating working fluid discharged from the dual-energy compressor 18 gradually absorbs heat and increases in temperature through the heat exchanger 9 and combustion chamber 8, then flows through the expander 19 to reduce pressure, perform work, and increase speed, and flows through the heater 10 to release heat and decrease in temperature. Afterwards, it splits into two paths—the first path flows through the second expander 21 to reduce pressure, perform work, and increase speed, flows through the regenerator 7 to absorb heat and increase temperature, and enters the dual-energy compressor 18 through the intermediate air inlet port to increase pressure, increase temperature, and decrease speed; the second path supplies the regenerator 7; the circulating working fluid flows through the regenerator 7 and the second regenerator 16 to release heat and condense. The condensate flows through the nozzle 20, where its pressure is reduced and its speed is increased. It then flows through the evaporator 11 to absorb heat and evaporate or to be further superheated. After passing through the second regenerator 16, it absorbs heat and increases in temperature. Finally, it enters the dual-energy compressor 18, where its pressure and temperature are increased and its speed is reduced. The power output from the expander 19 and the second expander 21 is used to power the dual-energy compressor 18. Alternatively, the power output from the expander 19 and the second expander 21 is used to power the dual-energy compressor 18 and external components. Or, the expander 19, the second expander 21, and external components jointly provide power to the dual-energy compressor 18, forming a catalyst regeneration energy recovery heat pump system.

[0069] Figure 12 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0070] exist Figure 7 In the catalyst regeneration energy recovery heat pump system shown, a two-phase expander 22 is added and replaces the throttle valve 6. The two-phase expander 22 is connected to the compressor 4 and transmits power. The circulating working fluid discharged from the second regenerator 16 flows through the two-phase expander 22 to reduce pressure and do work. Then it enters the evaporator 11 to absorb heat and evaporate or to be further superheated. The work output by the two-phase expander 22 is provided to the compressor 4 to provide power, thus forming a catalyst regeneration energy recovery heat pump system.

[0071] Figure 13 The catalyst regeneration energy recovery heat pump system shown is implemented as follows:

[0072] (1) Structurally, in Figure 7 In the catalyst regeneration energy recovery heat pump system shown, the evaporator 11 and its low-temperature heat medium channel connected to the outside are removed. The second regenerator 16 is connected to the evaporator 11 via the throttling valve 6, and the evaporator 11 is connected to the compressor 4 via the second regenerator 16. The system is adjusted so that the second regenerator 16 has a condensate channel connected to the outside, and the outside has a steam channel connected to the compressor 4 via the second regenerator 16.

[0073] (2) In terms of process, with Figure 7 The difference between the catalyst regeneration energy recovery heat pump system flow diagram shown is as follows: external steam flows through the second regenerator 16 to absorb heat and increase temperature before entering the compressor 4 to increase pressure and temperature. Steam discharged from the regenerator 7 enters the compressor 4 through the intermediate port to increase pressure and temperature. The high-pressure steam discharged from the compressor 4 flows through the heat exchanger 9 and the combustion chamber 8 to gradually absorb heat and increase temperature. It flows through the high-temperature expander 3 to reduce pressure and do work, and flows through the heater 10 to release heat and decrease temperature. Then it is divided into two paths - the first path enters the low-temperature expander 5 to reduce pressure and do work, and the second path flows through the regenerator 7 and the second regenerator 16 to release heat and condense before being discharged to the outside, forming the catalyst regeneration energy recovery heat pump system.

[0074] The effects achievable by this invention—the catalyst regeneration energy recovery heat pump system proposed in this invention has the following effects and advantages:

[0075] (1) Technical measures were proposed to improve the thermal energy grade of the catalyst regeneration process and to utilize it for refrigeration / heating.

[0076] (2) Reduce irreversible temperature loss during catalyst regeneration and increase the temperature of the initial driving heat source.

[0077] (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.

[0078] (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.

[0079] (5) Fuel (e.g., refinery gas or purchased fuel) provides high-temperature driving heat load through the combustion chamber, which greatly enhances the cooling / heating value of regenerated flue gas energy.

[0080] (6) Achieve efficient / high-value utilization of flue gas energy with relatively simple technical measures, reduce costs, and improve economic efficiency.

[0081] (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.

[0082] (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 high-temperature expander, a compressor, a low-temperature expander, a throttle valve, a regenerator, a combustion chamber, a heat exchanger, a heater, and an evaporator. Externally, an air passage connects to the coke-regeneration system (2) via the heat source regenerator (1). The coke-regeneration system (2) also has a flue gas passage connecting to the outside via the heat exchanger (9) and the heat source regenerator (1). The coke-regeneration system (2) also has a CO-rich flue gas passage connecting to the combustion chamber (8). The combustion chamber (8) also has a flue gas passage connecting to the outside via the heat exchanger (9) and the heat source regenerator (1). The evaporator (11) has a circulating working fluid passage connecting to the compressor (4), and the low-temperature expander (5) has a circulating working fluid passage connecting to the compressor (4). After passing through the regenerator (7), it is connected to the compressor (4) through the intermediate port. The compressor (4) also has a circulating working fluid channel that is connected to the high-temperature expander (3) through the heat exchanger (9) and the combustion chamber (8). The high-temperature expander (3) also has a circulating working fluid channel that is connected to the heater (10) and then splits into two paths - the first path is connected to the low-temperature expander (5) and the second path is connected to the regenerator (7). The regenerator (7) also has a circulating working fluid channel that is connected to the evaporator (11) through the throttle valve (6). The heater (10) also has a heated medium channel that is connected to the outside. The evaporator (11) also has a low-temperature heat medium channel that is connected to the outside. The high-temperature expander (3) and the low-temperature expander (5) are connected to the compressor (4) and transmit 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 combustion chamber (8) 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 combustion chamber (8), 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 flue gas channel is connected to the heat exchanger (9) and the coke-regeneration system (2) is connected to the auxiliary combustion chamber (12). The auxiliary combustion chamber (12) is then connected to the heat exchanger (9) via 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 high-temperature expander, a compressor, a low-temperature expander, a throttle valve, a regenerator, a combustion chamber, a heat exchanger, a heater, an evaporator, an air compressor, a flue gas fan, and a second flue gas fan. Externally, there is an air passage 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 passage connecting to the outside via the flue gas fan (14), the heat exchanger (9), and the heat source regenerator (1). The coke-regeneration system (2) also has a CO-rich flue gas passage connecting to the combustion chamber (8) via the second flue gas fan (15). The combustion chamber (8) also has a flue gas passage connecting to the outside via the heat exchanger (9) and the heat source regenerator (1). The evaporator (11) has a circulating working fluid passage connecting to the compressor (4). The low-temperature expander (5) has a circulating working fluid passage. After the medium channel connects to the regenerator (7), it is connected to the compressor (4) through the intermediate port. The compressor (4) also has a circulating medium channel that connects to the high-temperature expander (3) through the heat exchanger (9) and the combustion chamber (8). The high-temperature expander (3) also has a circulating medium channel that connects to the heater (10) and then splits into two paths - the first path connects to the low-temperature expander (5) and the second path connects to the regenerator (7). The regenerator (7) also has a circulating medium channel that connects to the evaporator (11) through the throttle valve (6). The heater (10) also has a heated medium channel that connects to the outside. The evaporator (11) also has a low-temperature heat medium channel that connects to the outside. The high-temperature expander (3) and the low-temperature expander (5) are connected to the compressor (4) and transmit 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 combustion chamber (8) 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 claims 1-7, wherein a second regenerator is added, the regenerator (7) is connected to the evaporator (11) via a circulating working fluid channel through a throttle valve (6) and the regenerator (7) is connected to the evaporator (11) via a second regenerator (16) and a throttle valve (6), and the evaporator (11) is connected to the compressor (4) via a circulating working fluid channel through a second regenerator (16) and the compressor (4), 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 1-8, wherein a high-temperature regenerator (17) is added, the compressor (4) is connected to the heat exchanger (9) via a circulating working fluid channel, and the high-temperature expander (3) is connected to the heater (10) via a circulating working fluid channel, thereby 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 1-8, wherein a high-temperature regenerator (17) is added, the compressor (4) is connected to the heat exchanger (9) via a circulating working fluid channel, and the compressor (4) is connected to the heat exchanger (9) via the high-temperature regenerator (17), and the high-temperature expander (3) is connected to the heater (10) via a circulating working fluid channel, and the high-temperature expander (3) is connected to itself via the high-temperature regenerator (17), and then the high-temperature expander (3) is connected to the heater (10) via a circulating working fluid channel, thereby forming a catalyst regeneration energy recovery heat pump system.

11. A catalyst regeneration energy recovery heat pump system is formed by adding a dual-energy compressor (18) to replace the compressor (4) in any of the catalyst regeneration energy recovery heat pump systems described in claims 1-10, adding an expander speed-up unit (19) to replace the cryogenic expander (5), and adding a nozzle (20) to replace the throttle valve (6).

12. A catalyst regeneration energy recovery heat pump system is formed by adding a dual-energy compressor (18) to replace the compressor (4) in any of the catalyst regeneration energy recovery heat pump systems described in claims 1-10, adding an expansion speed-increasing machine (19) to replace the high-temperature expansion machine (3), adding a nozzle (20) to replace the throttle valve (6), and adding a second expansion speed-increasing machine (21) to replace the low-temperature expansion machine (5).

13. A catalyst regeneration energy recovery heat pump system is a catalyst regeneration energy recovery heat pump system according to any one of claims 1-10, wherein a two-phase expander (22) is added and a throttle valve (6) is replaced, the two-phase expander (22) is connected to the compressor (4) and transmits power, thereby forming a catalyst regeneration energy recovery heat pump system.

14. The catalyst regeneration energy recovery heat pump system is the catalyst regeneration energy recovery heat pump system described in claim 1, wherein the evaporator (11) and its low-temperature heat medium channel connected to the outside are removed, and the regenerator (7) is connected to the evaporator (11) via the throttle valve (6) and the evaporator (11) is connected to the compressor (4) via the circulating working medium channel. The regenerator (7) is then adjusted to have a condensate channel connected to the outside and a steam channel connected to the compressor (4) to form the catalyst regeneration energy recovery heat pump system.

15. A catalyst regeneration energy recovery heat pump system is a catalyst regeneration energy recovery heat pump system as described in claim 8, wherein the evaporator (11) and its low-temperature heat medium channel connected to the outside are removed, and the second regenerator (16) is connected to the evaporator (11) through the throttle valve (6) and the evaporator (11) is connected to the compressor (4) through the second regenerator (16), and the second regenerator (16) is connected to the compressor (4) through the evaporator (11) through the throttle valve (6). The system is adjusted so that the second regenerator (16) has a condensate channel connected to the outside and the outside has a steam channel connected to the compressor (4) through the second regenerator (16), thus forming a catalyst regeneration energy recovery heat pump system.

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