CN215479716U - Condensing hydrogen production converter system with tail gas and flue gas CCUS - Google Patents

Condensing hydrogen production converter system with tail gas and flue gas CCUS Download PDF

Info

Publication number
CN215479716U
CN215479716U CN202121611500.0U CN202121611500U CN215479716U CN 215479716 U CN215479716 U CN 215479716U CN 202121611500 U CN202121611500 U CN 202121611500U CN 215479716 U CN215479716 U CN 215479716U
Authority
CN
China
Prior art keywords
flue gas
section
air preheating
preheating section
tail gas
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202121611500.0U
Other languages
Chinese (zh)
Inventor
马雷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shanghai Fuwang Furnace Co ltd
Original Assignee
Shanghai Fuwang Furnace Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shanghai Fuwang Furnace Co ltd filed Critical Shanghai Fuwang Furnace Co ltd
Priority to CN202121611500.0U priority Critical patent/CN215479716U/en
Application granted granted Critical
Publication of CN215479716U publication Critical patent/CN215479716U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00—Combustion technologies with mitigation potential
    • Y02E20/30—Technologies for a more efficient combustion or heat usage
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/10—Process efficiency
    • Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines

Landscapes

  • Air Supply (AREA)

Abstract

The utility model discloses a condensing hydrogen production converter system with tail gas and flue gas CCUS, which comprises: the system comprises a conversion section, a first medium heating section, a high-temperature air preheating section, a second medium heating section, a low-temperature air preheating section, a condensing air preheating section, a flue gas fan, a flue gas condenser, a first CCUS system, a chimney, a purified tail gas heating section, a supercharger, a second CCUS system and a PSA system; high-temperature flue gas from the conversion section enters a first medium heating section for heat exchange and temperature reduction; the air enters the high-temperature air preheating section and exchanges heat with the air from the low-temperature air preheating section; the other path of flue gas enters a purified tail gas heating section arranged in parallel to exchange heat with purified tail gas and supplementary fuel of a CCUS system pressurized by a supercharger, the waste heat of the flue gas is effectively utilized, the temperature of a flue gas outlet can be reduced to be below 60-120 ℃, the heat efficiency of the converter is improved, and the emission of CO2 can be further reduced.

Description

Condensing hydrogen production converter system with tail gas and flue gas CCUS
Technical Field
The utility model relates to the field of hydrocarbon hydrogen production conversion equipment, in particular to a condensing hydrogen production converter system with tail gas and flue gas CCUS.
Background
The fuel for the hydrocarbon hydrogen-producing reformer is typically a high calorific value, high pressure fuel gas (refinery gas or natural gas), and
low pressure low heating value tail gas (desorption gas or desorption gas) from a PSA system (pressure swing adsorption system). In normal operation, the stripping gas is the main fuel and the high pressure fuel gas is the supplementary fuel.
Because the PSA tail gas contains a large amount of CO2 (generally about 50 percent (V)), the heat value (LHV) of the tail gas is relatively low (generally about 10000KJ/Nm3, and the conventional fuel gas is about 36000 KJ/Nm 3), so the amount of the generated flue gas after combustion is much larger than the amount of combustion air (the air amount is 70-80 percent of the flue gas amount).
Due to the requirements of energy conservation and emission reduction and stable and efficient combustion of tail gas, combustion-supporting air is generally in a converter pair
The flow section is heated to 300-550 ℃ in two sections, and the flue gas volume is much larger than the combustion air volume, and the specific heat capacity of the flue gas is larger than that of the air, so that the flue gas temperature of the reformer ranges from 135 ℃ to 180 ℃, and the thermal efficiency ranges from 89% to 92%.
The method of only adopting the flue gas to preheat the combustion air can not continuously reduce the temperature of the flue gas, and the heat efficiency
And the low-temperature heat energy (sensible heat and latent heat) contained in the flue gas cannot be recycled, the energy is wasted, and the energy-saving and emission-reducing policy is not met.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problem of providing a condensing hydrogen production converter system with tail gas and flue gas CCUS, and the condensing hydrogen production converter system is provided with two sets of CCUS systems which are respectively used for recovering CO2 in PSA tail gas and converter flue gas, so that the condensing hydrogen production converter system is more environment-friendly; the waste heat of the flue gas is effectively utilized, the temperature of a flue gas outlet can be reduced to be below 60-120 ℃, the heat efficiency of the converter is improved, the emission of CO2 can be further reduced, and the method has wide market prospect in the application and popularization of hydrocarbon hydrogen production conversion equipment.
In order to solve the technical problems, the utility model adopts a technical scheme that: there is provided a condensing hydrogen production converter system with tail gas and flue gas CCUS, comprising: the system comprises a conversion section, a first medium heating section, a high-temperature air preheating section, a second medium heating section, a low-temperature air preheating section, a condensing air preheating section, a flue gas fan, a flue gas condenser, a first CCUS system, a chimney, a purified tail gas heating section, a supercharger, a second CCUS system and a PSA system;
the high-temperature reformed gas generated by the conversion section is connected with a PSA system through a reformed gas pipeline, the conversion section is connected with a first medium heating section through a main flue gas pipeline, the first medium heating section is connected with a high-temperature air preheating section, a second medium heating section, a low-temperature air preheating section, a condensing air preheating section, a flue gas fan, a condensing air preheating section, a first CCUS system and a chimney through a first flue gas pipeline, the condensing air preheating section is connected with the low-temperature air preheating section, the high-temperature air preheating section and the conversion section through the first air pipeline, and the condensing air preheating section is connected with the air fan to perform normal-temperature air heat exchange;
the tail gas purifying and heating section is connected with the first flue gas pipeline through a second flue gas pipeline and is connected with the conversion section through a fuel pipeline, and the PSA system is connected with the second CCUS system, the supercharger and the tail gas purifying and heating section through a tail gas pipeline.
In a preferred embodiment of the present invention, the inlet of the purified tail gas heating section is connected with the first flue gas pipeline upstream of the high-temperature air preheating section through a second flue gas pipeline, and the outlet of the purified tail gas heating section is connected with the first flue gas pipeline downstream of the second medium heating section.
In a preferred embodiment of the present invention, the inlet of the purified tail gas heating section is connected with the first flue gas pipeline upstream of the high-temperature air preheating section through a second flue gas pipeline, and the outlet of the purified tail gas heating section is connected with the first flue gas pipeline downstream of the high-temperature air preheating section.
In a preferred embodiment of the present invention, the inlet of the purified tail gas heating section is connected with the high-temperature air preheating section through a second flue gas pipeline, and the outlet of the purified tail gas heating section is connected with the first flue gas pipeline downstream of the condensing air preheating section.
In a preferred embodiment of the present invention, the inlet of the purified tail gas heating section is connected with the first flue gas pipeline downstream of the high-temperature air preheating section through a second flue gas pipeline, and the outlet of the purified tail gas heating section is connected with the first flue gas pipeline downstream of the low-temperature air preheating section.
In a preferred embodiment of the present invention, the inlet of the purified tail gas heating section is connected with the first flue gas pipeline upstream of the low-temperature air preheating section through a second flue gas pipeline, and the outlet of the purified tail gas heating section is connected with the first flue gas pipeline downstream of the low-temperature air preheating section.
In a preferred embodiment of the present invention, the inlet of the purified tail gas heating section is connected with the first flue gas pipeline upstream of the low-temperature air preheating section through a second flue gas pipeline, and the outlet of the purified tail gas heating section is connected with the first flue gas pipeline downstream of the condensing air preheating section.
In a preferred embodiment of the present invention, the first medium heating section and the second medium heating section are a process medium heating section, a steam heating section or other medium heating sections.
In a preferred embodiment of the utility model, the condensing air preheating section is integrated with a flue gas condensate neutralization treatment discharging device and a demisting device.
In a preferred embodiment of the utility model, the flue gas condenser is an acid and alkali corrosion resistant composite pipe type, a non-metal pipe type, a metal and/or composite material pipe type.
The utility model has the beneficial effects that: two sets of CCUS systems are arranged and are respectively used for recovering the PSA tail gas and CO2 in the flue gas of the converter, so that the system is more environment-friendly; the waste heat of the flue gas is effectively utilized, the temperature of a flue gas outlet can be reduced to be below 60-120 ℃, the heat efficiency of the converter is improved, the emission of CO2 can be further reduced, and the method has wide market prospect in the application and popularization of hydrocarbon hydrogen production conversion equipment.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
FIG. 1 is a schematic diagram of a first embodiment of a condensing hydrogen production converter system with tail gas and flue gas CCUS according to the present invention;
FIG. 2 is a schematic diagram of a second embodiment of a condensing hydrogen production converter system with tail gas and flue gas CCUS according to the present invention;
FIG. 3 is a schematic diagram of a third embodiment of a condensing hydrogen production converter system with tail gas and flue gas CCUS according to the present invention;
FIG. 4 is a schematic diagram of a fourth embodiment of a condensing hydrogen production converter system with tail gas and flue gas CCUS according to the present invention;
FIG. 5 is a schematic diagram of a fifth embodiment of a condensing hydrogen production converter system of the present invention having a tail gas and flue gas CCUS;
fig. 6 is a schematic structural diagram of a sixth embodiment of a condensing hydrogen production converter system with tail gas and flue gas CCUS according to the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The embodiment of the utility model comprises the following steps: there is provided a condensing hydrogen production converter system with tail gas and flue gas CCUS, comprising: the system comprises a conversion section 1, a first medium heating section 2, a high-temperature air preheating section 3, a second medium heating section 4, a low-temperature air preheating section 5, a condensing air preheating section 6, a flue gas fan 7, a flue gas condenser 8, a first CCUS system 9, a chimney 10, a purified tail gas heating section 11, a supercharger 12, a second CCUS system 13 and a PSA system 14;
the high-temperature converted gas generated by the conversion section is connected with a PSA system through a converted gas pipeline 15, the conversion section is connected with a first medium heating section through a main flue gas pipeline 16, the first medium heating section is connected with a high-temperature air preheating section, a second medium heating section, a low-temperature air preheating section, a condensing air preheating section, a flue gas fan and a chimney through a first flue gas pipeline 17, the condensing air preheating section is connected with the low-temperature air preheating section, the high-temperature air preheating section and the conversion section through a first air pipeline 18, and the condensing air preheating section is connected with an air fan 19 to perform normal-temperature air heat exchange.
The purified tail gas heating section is connected with the first flue gas pipeline through a second flue gas pipeline 20 and is connected with the conversion section through a fuel pipeline 21, the PSA system is connected with the second CCUS system, the supercharger and the purified tail gas heating section through a tail gas pipeline, high-temperature converted gas generated by the conversion section enters the PSA unit after heat exchange and temperature reduction, and the generated high-purity hydrogen is discharged out of the device; the tail gas generated by the PSA unit enters a CCUS system to recover and purify CO 2; after the purified tail gas obtained after CO2 is recycled, pressurizing the purified tail gas by a supercharger, enabling the pressurized purified tail gas to enter a purified tail gas and supplementary fuel heating section to respectively exchange heat with flue gas, enabling the purified tail gas and the supplementary fuel after heat exchange to enter a conversion section combustor to be combusted, pressurizing the purified tail gas by the supercharger to 100-300 kPa (g) from about 30-150 kPa (g), and enabling the temperature of the purified tail gas at the outlet of the supercharger to be 50-130 ℃; the tail gas and supplementary fuel heating section is heated to 300-700 ℃ after heat exchange with the flue gas.
Specifically, integrated flue gas comdenstion water neutralization treatment discharging equipment and defogging device on the condensing air preheating section, the comdenstion water neutralization treatment discharging equipment can be neutralized pH2~ 4's acid comdenstion water for pH6~ 9's neutral and alkalescent water, satisfy the straight-line standard of environmental protection requirement, water after the processing can directly discharge or carry out resource utilization after collecting, water is practiced thrift indirectly, the defogging facility can be collected the condensation droplet entrapment that contains in the flue gas and carry out neutralization treatment to comdenstion water neutralization treatment device, reduce the corruption of acid droplet to downstream equipment and facility in the flue gas.
Specifically, the first medium heating section and the second medium heating section are a process medium heating section, a steam heating section or other medium heating sections, and because the purified tail gas and the supplementary fuel exchange heat with the first medium heating section and the second medium heating section of the convection section of the reforming furnace in parallel, sensible heat and partial latent heat in the waste heat of the flue gas are effectively utilized, the temperature of the flue gas outlet can be reduced to 60-120 ℃, the thermal efficiency of the reforming furnace can be improved to 93-98% or even more from 89-92%, and the emission of CO2 is further reduced.
The converter system of the utility model adopts double preheating of fuel and air, the temperature after preheating is higher, the concentration of thermal NOx generated by fuel combustion is correspondingly increased, and an SCR denitration system or an ozone/hydrogen peroxide denitration system needs to be arranged at a proper position of a convection section of the converter when the requirements of NOx emission concentration and emission are strict, so that the NOx emission concentration and emission can meet the environmental protection requirements.
Preferably, the flue gas condenser is an acid-alkali corrosion resistant composite pipe type, a non-metal pipe type, a metal and/or composite material pipe type, the service life is prolonged, the refrigerant in the flue gas condenser can further cool the flue gas to 30-60 ℃, so that water vapor in the flue gas is further condensed, the flue gas is purified, the investment and the operation cost of a subsequent CCUS unit are reduced, and the refrigerant in the flue gas condenser can be softened water, desalted water and the like from a boiler water system, and can also be other types of refrigerants.
Detailed description of the preferred embodiment
As shown in fig. 1, the present invention provides a condensing hydrogen production converter system with tail gas and flue gas CCUS, which comprises: the system comprises a conversion section 1, a first medium heating section 2, a high-temperature air preheating section 3, a second medium heating section 4, a low-temperature air preheating section 5, a condensing air preheating section 6, a flue gas fan 7, a flue gas condenser 8, a first CCUS system 9, a chimney 10, a purified tail gas heating section 11, a supercharger 12, a second CCUS system 13 and a PSA system 14;
the high-temperature converted gas generated by the conversion section is connected with a PSA system through a converted gas pipeline 15, the conversion section is connected with a first medium heating section through a main flue gas pipeline 16, the first medium heating section is connected with a high-temperature air preheating section, a second medium heating section, a low-temperature air preheating section, a condensing air preheating section, a flue gas fan and a chimney through a first flue gas pipeline 17, the condensing air preheating section is connected with the low-temperature air preheating section, the high-temperature air preheating section and the conversion section through a first air pipeline 18, and the condensing air preheating section is connected with an air fan 19 to perform normal-temperature air heat exchange.
The heating section for purifying tail gas is connected with the first flue gas pipeline through a second flue gas pipeline 20, and is connected with the conversion section through a fuel pipeline 21, and the PSA system is connected with the heating section for purifying tail gas through a tail gas pipeline and a second CCUS system, a supercharger.
The inlet of the tail gas purifying heating section is connected with the first flue gas pipeline at the upstream of the high-temperature air preheating section through a second flue gas pipeline, and the outlet of the tail gas purifying heating section is connected with the first flue gas pipeline at the downstream of the second medium heating section.
When the device works, high-temperature flue gas from the conversion section enters a first medium heating section for heat exchange and cooling, and then is divided into two paths, wherein one path of flue gas enters a high-temperature air preheating section and then is subjected to heat exchange and cooling through a second medium heating section, and the other path of flue gas enters a purified tail gas heating section which is arranged in parallel and exchanges heat with purified tail gas and supplementary fuel from a second CCUS system pressurized by a supercharger; the two paths of flue gas after heat exchange and temperature reduction respectively join and enter a low-temperature air preheating section to exchange heat with air from a condensing air preheating section, and enter the condensing air preheating section to exchange heat with normal-temperature air from an air fan; then, sending the mixture into a flue gas condenser through a flue gas fan to exchange heat with a refrigerant, and cooling to 30-60 ℃; and the flue gas enters a first flue gas CCUS system to recover CO2 in the flue gas, and the purified flue gas after CO2 recovery is discharged into the atmosphere through a chimney or is sent to downstream facilities for further recovery and utilization.
Detailed description of the utility model
As shown in fig. 2, the present invention provides a condensing hydrogen production converter system with tail gas and flue gas CCUS, which comprises: the system comprises a conversion section, a first medium heating section, a high-temperature air preheating section, a second medium heating section, a low-temperature air preheating section, a condensing air preheating section, a flue gas fan, a flue gas condenser, a first CCUS system, a chimney, a purified tail gas heating section, a supercharger, a second CCUS system and a PSA system;
the high-temperature reformed gas generated by the conversion section is connected with a PSA system through a reformed gas pipeline, the conversion section is connected with a first medium heating section through a main flue gas pipeline, the first medium heating section is connected with a high-temperature air preheating section, a second medium heating section, a low-temperature air preheating section, a condensing air preheating section, a flue gas fan and a chimney through a first flue gas pipeline, the condensing air preheating section is connected with the low-temperature air preheating section, the high-temperature air preheating section and the conversion section through a first air pipeline, and the condensing air preheating section is connected with the air fan to perform normal-temperature air heat exchange.
The tail gas purifying and heating section is connected with the first flue gas pipeline through a second flue gas pipeline and is connected with the conversion section through a fuel pipeline, and the PSA system is connected with the second CCUS system, the supercharger and the tail gas purifying and heating section through the tail gas pipeline.
The inlet of the tail gas purifying and heating section is connected with the first flue gas pipeline at the upstream of the high-temperature air preheating section through a second flue gas pipeline, and the outlet of the tail gas purifying and heating section is connected with the first flue gas pipeline at the downstream of the high-temperature air preheating section.
When the device works, high-temperature flue gas from the conversion section enters a first medium heating section for heat exchange and cooling, and then is divided into two paths, wherein one path of flue gas enters a high-temperature air preheating section for heat exchange and cooling, and the other path of flue gas enters a purified tail gas heating section which is arranged in parallel for heat exchange with purified tail gas and supplementary fuel from a second CCUS system pressurized by a supercharger; the two paths of flue gas subjected to heat exchange and temperature reduction respectively join and enter a second medium heating section, a low-temperature air preheating section and exchange heat with air from a condensing air preheating section, and enter the condensing air preheating section and exchange heat with normal-temperature air from an air fan; then, sending the mixture into a flue gas condenser through a flue gas fan to exchange heat with a refrigerant, and cooling to 30-60 ℃; and the flue gas enters a first flue gas CCUS system to recover CO2 in the flue gas, and the purified flue gas after CO2 recovery is discharged into the atmosphere through a chimney or is sent to downstream facilities for further recovery and utilization.
Detailed description of the preferred embodiment
As shown in fig. 3, the present invention provides a condensing hydrogen production converter system with tail gas and flue gas CCUS, which comprises: the system comprises a conversion section, a first medium heating section, a high-temperature air preheating section, a second medium heating section, a low-temperature air preheating section, a condensing air preheating section, a flue gas fan, a flue gas condenser, a first CCUS system, a chimney, a purified tail gas heating section, a supercharger, a second CCUS system and a PSA system;
the high-temperature reformed gas generated by the conversion section is connected with a PSA system through a reformed gas pipeline, the conversion section is connected with a first medium heating section through a main flue gas pipeline, the first medium heating section is connected with a high-temperature air preheating section, a second medium heating section, a low-temperature air preheating section, a condensing air preheating section, a flue gas fan and a chimney through a first flue gas pipeline, the condensing air preheating section is connected with the low-temperature air preheating section, the high-temperature air preheating section and the conversion section through a first air pipeline, and the condensing air preheating section is connected with the air fan to perform normal-temperature air heat exchange.
The tail gas purifying and heating section is connected with the first flue gas pipeline through a second flue gas pipeline and is connected with the conversion section through a fuel pipeline, and the PSA system is connected with the second CCUS system, the supercharger and the tail gas purifying and heating section through the tail gas pipeline.
The inlet of the tail gas purifying and heating section is connected with the high-temperature air preheating section through a second flue gas pipeline, and the outlet of the tail gas purifying and heating section is connected with the first flue gas pipeline at the downstream of the condensing air preheating section.
When the device works, high-temperature flue gas from the conversion section enters a first medium heating section for heat exchange and cooling, then the high-temperature flue gas is divided into two paths, one path of the flue gas enters a high-temperature air preheating section for heat exchange and cooling, and then the flue gas passes through a second medium heating section and a low-temperature air preheating section to exchange heat with air from a condensing air preheating section, and the other path of the flue gas enters a purified tail gas heating section which is arranged in parallel to exchange heat with purified tail gas and supplementary fuel which are pressurized by a supercharger and come from a second CCUS system; converging two paths of flue gas subjected to heat exchange and cooling respectively, then sending the converged flue gas into a flue gas condenser through a flue gas fan to exchange heat with a refrigerant, and cooling to 30-60 ℃; and the flue gas enters a first flue gas CCUS system to recover CO2 in the flue gas, and the purified flue gas after CO2 recovery is discharged into the atmosphere through a chimney or is sent to downstream facilities for further recovery and utilization.
Detailed description of the utility model
As shown in fig. 4, the condensing hydrogen production converter system with tail gas and flue gas CCUS of the present invention includes: the system comprises a conversion section, a first medium heating section, a high-temperature air preheating section, a second medium heating section, a low-temperature air preheating section, a condensing air preheating section, a flue gas fan, a flue gas condenser, a first CCUS system, a chimney, a purified tail gas heating section, a supercharger, a second CCUS system and a PSA system;
the high-temperature reformed gas generated by the conversion section is connected with a PSA system through a reformed gas pipeline, the conversion section is connected with a first medium heating section through a main flue gas pipeline, the first medium heating section is connected with a high-temperature air preheating section, a second medium heating section, a low-temperature air preheating section, a condensing air preheating section, a flue gas fan and a chimney through a first flue gas pipeline, the condensing air preheating section is connected with the low-temperature air preheating section, the high-temperature air preheating section and the conversion section through a first air pipeline, and the condensing air preheating section is connected with the air fan to perform normal-temperature air heat exchange.
The tail gas purifying and heating section is connected with the first flue gas pipeline through a second flue gas pipeline and is connected with the conversion section through a fuel pipeline, and the PSA system is connected with the second CCUS system, the supercharger and the tail gas purifying and heating section through the tail gas pipeline.
The inlet of the tail gas purifying and heating section is connected with the first flue gas pipeline at the downstream of the high-temperature air preheating section through a second flue gas pipeline, and the outlet of the tail gas purifying and heating section is connected with the first flue gas pipeline at the downstream of the low-temperature air preheating section.
When the device works, high-temperature flue gas from the conversion section enters a first medium heating section and a high-temperature air preheating section for heat exchange and cooling, and then is divided into two paths, wherein one path of flue gas enters a second medium heating section and a low-temperature air preheating section for heat exchange and cooling, and the other path of flue gas enters a purified tail gas heating section which is arranged in parallel for heat exchange with purified tail gas and supplementary fuel from a second CCUS system pressurized by a supercharger; converging two paths of flue gas subjected to heat exchange and cooling respectively, exchanging heat with air from a condensing air preheating section, sending the flue gas into a flue gas condenser through a flue gas fan, exchanging heat with a refrigerant, and cooling to 30-60 ℃; and the flue gas enters a first flue gas CCUS system to recover CO2 in the flue gas, and the purified flue gas after CO2 recovery is discharged into the atmosphere through a chimney or is sent to downstream facilities for further recovery and utilization.
Detailed description of the preferred embodiment
As shown in fig. 5, the condensing hydrogen production converter system with tail gas and flue gas CCUS of the present invention includes: the system comprises a conversion section, a first medium heating section, a high-temperature air preheating section, a second medium heating section, a low-temperature air preheating section, a condensing air preheating section, a flue gas fan, a flue gas condenser, a first CCUS system, a chimney, a purified tail gas heating section, a supercharger, a second CCUS system and a PSA system;
the high-temperature reformed gas generated by the conversion section is connected with a PSA system through a reformed gas pipeline, the conversion section is connected with a first medium heating section through a main flue gas pipeline, the first medium heating section is connected with a high-temperature air preheating section, a second medium heating section, a low-temperature air preheating section, a condensing air preheating section, a flue gas fan and a chimney through a first flue gas pipeline, the condensing air preheating section is connected with the low-temperature air preheating section, the high-temperature air preheating section and the conversion section through a first air pipeline, and the condensing air preheating section is connected with the air fan to perform normal-temperature air heat exchange.
The tail gas purifying and heating section is connected with the first flue gas pipeline through a second flue gas pipeline and is connected with the conversion section through a fuel pipeline, and the PSA system is connected with the second CCUS system, the supercharger and the tail gas purifying and heating section through the tail gas pipeline.
The inlet of the tail gas purifying heating section is connected with the first flue gas pipeline at the upper stream of the low-temperature air preheating section through a second flue gas pipeline, and the outlet of the tail gas purifying heating section is connected with the first flue gas pipeline at the lower stream of the low-temperature air preheating section.
When the device works, high-temperature flue gas from the conversion section enters a first medium heating section, a high-temperature air preheating section and a second medium heating section for heat exchange and cooling, and then the high-temperature flue gas is divided into two paths, wherein one path of the high-temperature flue gas enters a low-temperature air preheating section for heat exchange and cooling, and the other path of the high-temperature flue gas enters a purified tail gas heating section which is arranged in parallel for heat exchange with purified tail gas and supplementary fuel from a second CCUS system pressurized by a supercharger; converging two paths of flue gas subjected to heat exchange and cooling respectively, exchanging heat with air from a condensing air preheating section, sending the flue gas into a flue gas condenser through a flue gas fan, exchanging heat with a refrigerant, and cooling to 30-60 ℃; and the flue gas enters a first flue gas CCUS system to recover CO2 in the flue gas, and the purified flue gas after CO2 recovery is discharged into the atmosphere through a chimney or is sent to downstream facilities for further recovery and utilization.
Detailed description of the preferred embodiment
As shown in fig. 6, the condensing hydrogen production converter system with tail gas and flue gas CCUS of the present invention includes: the system comprises a conversion section, a first medium heating section, a high-temperature air preheating section, a second medium heating section, a low-temperature air preheating section, a condensing air preheating section, a flue gas fan, a flue gas condenser, a first CCUS system, a chimney, a purified tail gas heating section, a supercharger, a second CCUS system and a PSA system;
the high-temperature reformed gas generated by the conversion section is connected with a PSA system through a reformed gas pipeline, the conversion section is connected with a first medium heating section through a main flue gas pipeline, the first medium heating section is connected with a high-temperature air preheating section, a second medium heating section, a low-temperature air preheating section, a condensing air preheating section, a flue gas fan and a chimney through a first flue gas pipeline, the condensing air preheating section is connected with the low-temperature air preheating section, the high-temperature air preheating section and the conversion section through a first air pipeline, and the condensing air preheating section is connected with the air fan to perform normal-temperature air heat exchange.
The tail gas purifying and heating section is connected with the first flue gas pipeline through a second flue gas pipeline and is connected with the conversion section through a fuel pipeline, and the PSA system is connected with the second CCUS system, the supercharger and the tail gas purifying and heating section through the tail gas pipeline.
The inlet of the tail gas purifying and heating section is connected with the first flue gas pipeline at the upstream of the low-temperature air preheating section through a second flue gas pipeline, and the outlet of the tail gas purifying and heating section is connected with the first flue gas pipeline at the downstream of the condensing air preheating section.
When the device works, high-temperature flue gas from the conversion section enters a first medium heating section, a high-temperature air preheating section and a second medium heating section for heat exchange and cooling, and then the high-temperature flue gas is divided into two paths, wherein one path of the high-temperature flue gas enters a low-temperature air preheating section for heat exchange and cooling and exchanges heat with air from a condensing air preheating section, and the other path of the high-temperature flue gas enters a purified tail gas heating section which is arranged in parallel and exchanges heat with purified tail gas and supplementary fuel from a second CCUS system pressurized by a supercharger; converging two paths of flue gas subjected to heat exchange and cooling respectively, then sending the converged flue gas into a flue gas condenser through a flue gas fan to exchange heat with a refrigerant, and cooling to 30-60 ℃; and the flue gas enters a first flue gas CCUS system to recover CO2 in the flue gas, and the purified flue gas after CO2 recovery is discharged into the atmosphere through a chimney or is sent to downstream facilities for further recovery and utilization.
The condensing hydrogen production converter system with tail gas and flue gas CCUS has the beneficial effects that: two sets of CCUS systems are arranged and are respectively used for recovering the PSA tail gas and CO2 in the flue gas of the converter, so that the system is more environment-friendly; the waste heat of the flue gas is effectively utilized, the temperature of a flue gas outlet can be reduced to be below 60-120 ℃, the heat efficiency of the converter is improved, the emission of CO2 can be further reduced, and the method has wide market prospect in the application and popularization of hydrocarbon hydrogen production conversion equipment.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (10)

1. A condensing hydrogen production converter system with tail gas and flue gas CCUS is characterized by comprising: the system comprises a conversion section, a first medium heating section, a high-temperature air preheating section, a second medium heating section, a low-temperature air preheating section, a condensing air preheating section, a flue gas fan, a flue gas condenser, a first CCUS system, a chimney, a purified tail gas heating section, a supercharger, a second CCUS system and a PSA system;
the high-temperature reformed gas generated by the conversion section is connected with a PSA system through a reformed gas pipeline, the conversion section is connected with a first medium heating section through a main flue gas pipeline, the first medium heating section is connected with a high-temperature air preheating section, a second medium heating section, a low-temperature air preheating section, a condensing air preheating section, a flue gas fan, a condensing air preheating section, a first CCUS system and a chimney through a first flue gas pipeline, the condensing air preheating section is connected with the low-temperature air preheating section, the high-temperature air preheating section and the conversion section through the first air pipeline, and the condensing air preheating section is connected with the air fan to perform normal-temperature air heat exchange;
the tail gas purifying and heating section is connected with the first flue gas pipeline through a second flue gas pipeline and is connected with the conversion section through a fuel pipeline, and the PSA system is connected with the second CCUS system, the supercharger and the tail gas purifying and heating section through a tail gas pipeline.
2. The system of claim 1, wherein the inlet of the heating section of purified tail gas is connected to the first flue gas pipeline upstream of the high temperature air preheating section through a second flue gas pipeline, and the outlet of the heating section of purified tail gas is connected to the first flue gas pipeline downstream of the second medium heating section.
3. The system of claim 1, wherein the inlet of the heating section of purified tail gas is connected to the first flue gas duct upstream of the preheating section of high temperature air through a second flue gas duct, and the outlet of the heating section of purified tail gas is connected to the first flue gas duct downstream of the preheating section of high temperature air.
4. The system of claim 1, wherein the inlet of the heating section of purified tail gas is connected to the high temperature air preheating section through a second flue gas duct, and the outlet of the heating section of purified tail gas is connected to the first flue gas duct downstream of the condensing air preheating section.
5. The system of claim 1, wherein the inlet of the heating section of purified tail gas is connected to the first flue gas duct downstream of the high temperature air preheating section through a second flue gas duct, and the outlet of the heating section of purified tail gas is connected to the first flue gas duct downstream of the low temperature air preheating section.
6. The system of claim 1, wherein the inlet of the heating section of purified tail gas is connected to the first flue gas duct upstream of the preheating section of low-temperature air via a second flue gas duct, and the outlet of the heating section of purified tail gas is connected to the first flue gas duct downstream of the preheating section of low-temperature air.
7. The system of claim 1, wherein the inlet of the heating section of purified tail gas is connected to the first flue gas duct upstream of the low temperature air preheating section through a second flue gas duct, and the outlet of the heating section of purified tail gas is connected to the first flue gas duct downstream of the condensing air preheating section.
8. The system of claim 1, wherein the first and second medium heating sections are process medium heating sections, steam heating sections, or other medium heating sections.
9. The system of claim 1, wherein the condensing air preheating section is integrated with a flue gas condensate neutralizing, treating and discharging device and a demisting device.
10. The system of claim 1, wherein the flue gas condenser is an acid and alkali corrosion resistant composite tube, a non-metal tube, a metal and/or composite tube.
CN202121611500.0U 2021-07-15 2021-07-15 Condensing hydrogen production converter system with tail gas and flue gas CCUS Active CN215479716U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121611500.0U CN215479716U (en) 2021-07-15 2021-07-15 Condensing hydrogen production converter system with tail gas and flue gas CCUS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121611500.0U CN215479716U (en) 2021-07-15 2021-07-15 Condensing hydrogen production converter system with tail gas and flue gas CCUS

Publications (1)

Publication Number Publication Date
CN215479716U true CN215479716U (en) 2022-01-11

Family

ID=79728318

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121611500.0U Active CN215479716U (en) 2021-07-15 2021-07-15 Condensing hydrogen production converter system with tail gas and flue gas CCUS

Country Status (1)

Country Link
CN (1) CN215479716U (en)

Similar Documents

Publication Publication Date Title
CN205948680U (en) Flue gas denitration processing system
CN103486567A (en) Boiler-turbine coupled flue gas waste heat utilization system capable of preheating air based on condensed water
CN100358800C (en) Electric furnace method yellow phosphorus tail gas residual heat comprehensive balance utilizing system
WO2014005476A1 (en) Flue gas waste heat recovery system for concurrent boiler
CN106678771A (en) Air heater and low-low temperature economizer coupled energy-saving and environmental-friendly integrated system and method based on fluoroplastic heat exchanger
CN106621809B (en) System and method for recovering waste heat of regeneration tower of active coke dry desulfurization device
CN111841310A (en) Acid making waste heat utilization and tail gas comprehensive treatment process and device
CN201031142Y (en) Sulfur recovery and exhaust gas treating device of reheat furnace hydrogen making
CN210568552U (en) Boiler energy-saving and flue gas whitening system
CN215479716U (en) Condensing hydrogen production converter system with tail gas and flue gas CCUS
CN204665333U (en) Smoke waste heat utilization system
CN215479714U (en) Condensing hydrogen production converter system matched with PSA tail gas CCUS system
CN216790153U (en) Flue gas waste heat utilization system that many operation modes switch
CN111609393B (en) Boiler synergy integration system
CN202692016U (en) Flue gas waste heat recovery system for concurrent boiler
CN206435053U (en) Sulphur is hydrogenated with recycling and processing device
CN108744918A (en) System and process for realizing efficient denitration of coke oven flue gas by using waste heat of raw gas
CN213253787U (en) Use waste heat utilization system of denitration after lime-gypsum wet flue gas desulfurization
CN104832945A (en) Flue gas waste heat utilization system
CN211575209U (en) Energy-saving white smoke eliminating system for double-stage flue gas waste heat recovery of gas-fired boiler
CN210675125U (en) Shift catalyst intensification vulcanization system
CN210150715U (en) Natural gas steam reforming hydrogen production device
CN111609419A (en) Hot-cold circulating recycling system and method for flue gas water extraction
CN214734508U (en) Condensing type hydrocarbon converter system integrated with low-pressure combustible gas pressurizing and heating system
CN109140492B (en) Boiler smoke-wind coupling waste heat recovery system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant