CN112442393A - Coal carbon clean and efficient utilization treatment process - Google Patents

Coal carbon clean and efficient utilization treatment process Download PDF

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Publication number
CN112442393A
CN112442393A CN201910799339.5A CN201910799339A CN112442393A CN 112442393 A CN112442393 A CN 112442393A CN 201910799339 A CN201910799339 A CN 201910799339A CN 112442393 A CN112442393 A CN 112442393A
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gas
coal
steam
turbine
sulfur
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李翔宇
吴宏
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    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/82—Gas withdrawal means
    • C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/72—Other features
    • C10J3/86—Other features combined with waste-heat boilers
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/093—Coal
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/16—Integration of gasification processes with another plant or parts within the plant
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/16—Integration of gasification processes with another plant or parts within the plant
    • C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
    • C10J2300/1612—CO2-separation and sequestration, i.e. long time storage
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/16—Integration of gasification processes with another plant or parts within the plant
    • C10J2300/1625—Integration of gasification processes with another plant or parts within the plant with solids treatment
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/16—Integration of gasification processes with another plant or parts within the plant
    • C10J2300/1671—Integration of gasification processes with another plant or parts within the plant with the production of electricity
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/16—Integration of gasification processes with another plant or parts within the plant
    • C10J2300/1671—Integration of gasification processes with another plant or parts within the plant with the production of electricity
    • C10J2300/1675—Integration of gasification processes with another plant or parts within the plant with the production of electricity making use of a steam turbine
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/16—Integration of gasification processes with another plant or parts within the plant
    • C10J2300/1687—Integration of gasification processes with another plant or parts within the plant with steam generation
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/16—Integration of gasification processes with another plant or parts within the plant
    • C10J2300/1693—Integration of gasification processes with another plant or parts within the plant with storage facilities for intermediate, feed and/or product
    • 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
    • Y02E20/16—Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
    • Y02E20/18—Integrated gasification combined cycle [IGCC], e.g. combined with carbon capture and storage [CCS]
    • 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

Abstract

The invention discloses a process for realizing the completely harmless application of coal, which mainly comprises the following steps of gasifying the sulfur-containing coal in a novel gasification furnace, and then, mainly containing sulfur pollutant H2S is used as a raw material to be combined with a chemical plant for producing polyphenylene sulfide, polyphenylene sulfide sulfone, sulfide or mercaptan, thereby eliminating the emission of sulfur and leading combustible components (mainly CO or H-containing gas) in the mixed gas2) The tail gas of the gas turbine is discharged to a waste heat boiler to generate steam to drive a steam turbine to generate power, and CO in the tail gas of the waste heat boiler is supplied to a gas turbine as fuel to do work to generate power2And making gasCO produced by the furnace2The waste heat boiler is used for agriculture to improve the yield and quality of crops, high-quality steam generated by the waste heat boiler can be used for industrial production, low-grade steam from a steam turbine can be provided for agriculture to use, and slag generated by the gas making furnace is used for manufacturing paving water permeable bricks, so that complete harmlessness of coal and maximum utilization of coal energy are realized.

Description

Coal carbon clean and efficient utilization treatment process
Technical Field
The invention relates to a way and a method for clean and efficient utilization of coal.
Background
Along with economic development of China, the energy demand of China is more and more, and due to the energy resource condition of 'rich coal, less gas and poor oil' in China, coal is inevitably used as a main energy source for energy safety. However, the traditional method mainly uses coal, which is a coal-fired boiler of a thermal power plant and a steam boiler fired by a factory and mining enterprise, the biggest problem caused by the application of direct combustion of coal as fuel is the environmental protection problem, and a large amount of sulfide, NOx and dust are generated in the tail gas of the boiler. Although a large power station boiler can be treated by the tail gas purification device, a large amount of industrial waste such as sulfur gypsum and the like is still generated, new pollutants are easily caused, and finally, a large amount of dust is still contained in the discharged flue gas; the small coal-fired boiler still generates a large amount of sulfide, NOx and dust to be discharged into the atmosphere, and becomes a main pollution source for polluting the environment. In order to reduce the damage of the coal-fired boiler to the environment, the coal-to-electricity and coal-to-gas utilization modes are adopted in China to gradually shut down and replace the coal-fired boiler. Therefore, the traditional mode of burning and utilizing coal is ended, and belongs to the mode of utilizing energy which is gradually abandoned.
Although the use of coal can be reduced to a certain extent by changing coal into electricity and changing coal into gas, China is a country relatively lacking (natural) gas, and the main source of electric power is thermal power with the power generation ratio of more than 65%, and indirect pollution is caused. In order to ensure the energy autonomy and energy safety of China, how to use coal resources well on the premise of environmental protection becomes a major technical problem which needs to be solved urgently. An Integrated Gasification Combined Cycle (IGCC) system is a way to clean coal resources. IGCC is to produce gas by coal and then to generate electricity by combined cycle of gas and steam. The existing IGCC (integrated gasification combined cycle) mainly adopts the technical process that the coal is pyrolyzed in a pyrolysis gas-making furnace to convert the main components of the coal into the coal containing CO and H2、H2S、N2、CO2And mixed gas such as water vapor. Then mixing theseThe resultant gas is used as fuel to be delivered to a gas turbine to be combusted and drive a turbine to drive a generator to generate electricity, the gas turbine discharges high-temperature tail gas and then generates steam through a waste heat boiler to drive the turbine to drive the generator to generate electricity, and final tail gas discharged from the waste heat boiler still is generated by SO2And other components such as NOx and water vapor mixture, and the like, and the same desulfurization and denitrification tail gas treatment device as that of the coal-fired power plant is also required for treatment. The IGCC power generation system has the greatest advantages that almost no dust is generated, the thermoelectric conversion efficiency can reach more than 62 percent and is far higher than 42 percent of that of a supercritical power plant, and water can be saved by more than 60 percent compared with the traditional thermal power generating unit with the same power. However, IGCC needs a desulfurization and denitrification treatment device like the conventional thermal power, and environmentally-friendly industrial wastes such as sulfur gypsum and sulfur which are difficult to treat are generated. Therefore, techniques for further improving the environment-friendly performance of IGCC are required.
The modern IGCC system mainly pursues thermoelectric conversion efficiency, in order to improve the thermoelectric conversion efficiency, the gas turbine continuously adopts a plurality of advanced technologies to improve performance, such as increasing the temperature in front of the turbine, increasing the pressure ratio, and the like, so that the structure of the advanced gas turbine is more and more complex, the manufacturing cost thereof is also rising, and the high cost (about 3 times of the same-capacity thermal power) of the IGCC system becomes the most main factor restricting the popularization and use thereof. However, in many coal applications, both heat (in the form of steam) and electrical energy are required as energy sources, and therefore, in coal applications, the energy utilization rate of coal should be pursued without excessively pursuing the thermoelectric conversion efficiency. Thus, in the application of the IGCC, if the goal of pursuing high energy utilization rate instead of pursuing the thermoelectric conversion efficiency is not excessively pursued, the design idea of the core subsystem of the IGCC system, i.e., the gas turbine, is different from the gas turbine pursuing high thermoelectric conversion efficiency, and the heat-electricity ratio of the whole system is matched with the industrial application requirement, so that the energy utilization is maximized on the aspects of pursuing ultra-low emission of combustion and reducing the manufacturing cost of the gas turbine to improve the economy.
Disclosure of Invention
The main system for realizing the coal harmless application process comprises the following steps: novel coal gasificationThe system comprises a furnace (2), a gas separation and purification chamber (4), a gas turbine (6), a waste heat boiler (7), a steam turbine (8), a slag treatment device (10), a sulfur-containing high polymer material and chemical raw material production device (16), a plant factory (19), a food processing factory (22) and the like; the system is characterized in that: the method comprises the following steps that (1) raw material sulfur-containing coal (1) enters a novel coal gasifier (2) through a coal conveyor for pyrolysis, mixed gas (3) generated by pyrolysis enters a gas separation purification chamber (4), slag (9) generated after coal pyrolysis can be conveyed to a slag treatment device (10), and the slag (9) is made into water permeable bricks (11) for paving; H2S (12) in the mixed gas (3) can be completely separated in a gas separation and purification chamber (4) through adsorption and desorption, and the raw material is input into a device (16) for producing sulfur-containing high molecular materials and chemical raw materials to produce polyphenylene sulfide or polyphenylene sulfide sulfone (17) and also produce sulfide or mercaptan (18); the hydrogen (13) in the mixed gas (3) can also be purified by a pressure swing adsorption or membrane filtration method to be changed into pure hydrogen (13), the hydrogen (13) can be used for other chemical raw materials or used as fuel of a hydrogen fuel cell, and can not be purified if not used, and continuously exists in the mixed gas (3); CO in the mixed gas (3)2(23) Can also be purified and the CO discharged from the subsequent waste heat boiler2(23) The carbon fertilizer is supplied to a plant factory (19) of agriculture together, and a high-quality agricultural product (20) is produced by the plant factory (19), the agricultural product (20) can supply a raw material for a food processing plant (22), and the CO is supplied to the plant factory (19)2(23) Dry ice (21) can also be made, and can be used as raw material of food processing plant (22) or as cold-storage medium of cold chain food; the rest in the gas separation and purification chamber (4) is mainly combustible gas (5), the main component of the gas (5) is CO or hydrogen (13) (if not purified) which is supplied to the gas turbine (6) to be used as fuel to burn and push the gas turbine (6) to drive the generator to generate electricity (14), and the high-temperature tail gas discharged by the gas turbine (6) is mainly CO2(23) And the water vapor can be introduced into a waste heat boiler to generate high-grade steam (24) by using waste heat, the high-grade steam (24) can be used for pushing a steam turbine (8) to do work to drive a generator to generate electric power (14), the high-grade steam (24) discharged from the waste heat boiler (7) can be supplied to a sulfur-containing high polymer material and a chemical raw material production device (16) which need the steam, and the steam turbine (8) is discharged from an outletThe low-grade steam (15) can be supplied to the temperature control application of the plant factory (19); wherein the power (14) generated by the gas turbine (6) and the steam turbine (8) can be used for the equipment of a slag processing device (10), a sulfur-containing high polymer material and chemical raw material production device (16) and a plant factory (19).
In order to realize better adjustment of thermoelectric proportion, full utilization of energy and reduction of pollutant emission, the total pressure ratio of a gas compressor of a gas turbine (6) adopted in the process link is in the range of 5-20, and the temperature range before the turbine is in the range of 900-1200 ℃; the maximum working temperature of the novel coal gasifier (2) in the process link is 900-1000 ℃, and the coal can be pyrolyzed into complete gaseous mixed gas and slag or into gaseous mixture, tar and slag.
The novel coal gasification furnace (2) in the process is also suitable for industrial furnaces which take coal as raw materials, such as a coke furnace in the steel industry, a retort furnace for manufacturing semi coke and the like.
Drawings
FIG. 1 is a process flow diagram for clean and efficient utilization of sulfur-containing coal in the practice of the present invention
Detailed Description
The present invention will be described in further detail below with reference to the accompanying drawings.
The invention provides a process flow and process parameters capable of realizing completely harmless application of coal. On the basis of the traditional IGCC coal-to-gas power generation process, the process flow carries out resource utilization on the main component, namely sulfur, which can cause environmental pollution in coal after pyrolysis in a gas making furnace, and converts the sulfur into high-grade engineering plastics, namely polyphenylene sulfide or polyphenylene sulfide sulfone, or chemical raw material, namely thioether and mercaptan, which have good market prospects, and is also the core of the invention: the sulfur-containing compounds in the coal are purified and used as chemical raw materials, so that the emission of sulfur-containing pollutants is completely eliminated, and therefore, the gasification furnace comprises a gas making furnace, a coke furnace and a carbonization furnace for producing semi coke, wherein the gas making furnace takes the coal as a raw material. CO in mixed gas generated by pyrolysis2And CO discharged from waste heat boiler2Providing cooling for agricultural applications for carbon fertilizer and agricultural product cold-chain logisticsThe coolant reduces carbon emission to the atmosphere on one hand, and also enables the whole process to realize near zero emission of gas pollutants. Meanwhile, slag generated by the pyrolysis furnace is also used for manufacturing water permeable bricks for paving, so that the discharge of solid-free waste is realized, and a mode of harmless application of coal resources is constructed.
The process of the invention is based on the principle of pursuing the maximization of energy utilization efficiency, and on the basis of the original IGCC system, a low-cost gas turbine with reasonable parameter design is adopted to ensure that the power generation and tail gas heat supply proportion is matched with the proportion of thermoelectricity required by industrial application, but the high thermoelectricity conversion efficiency is not excessively pursued, so that the manufacturing cost of the whole system is too high. High-grade steam is used for industrial application in energy utilization, low-grade steam is also used for agriculture and suitable industry, energy supply is tightly combined with actual industrial and agricultural application, the energy with different qualities is fully matched and utilized, the energy utilization rate is up to more than 90%, the energy cost of the whole system is reduced, and the benefit of the whole system is improved.
Although the invention has been described with reference to specific embodiments and examples shown in the drawings, the invention is not limited thereto, and those skilled in the art will appreciate that various modifications, substitutions, improvements and the like can be made without departing from the spirit and scope of the invention.

Claims (5)

1. The main system for realizing the coal harmless application process comprises the following steps: the system comprises a novel coal gasification furnace (2), a gas separation and purification chamber (4), a gas turbine (6), a waste heat boiler (7), a steam turbine (8), a slag treatment device (10), a sulfur-containing high polymer material and chemical raw material production device (16), a plant factory (19), a food processing factory (22) and the like; the system is characterized in that: the method comprises the following steps that (1) raw material sulfur-containing coal (1) enters a novel coal gasifier (2) through a coal conveyor for pyrolysis, mixed gas (3) generated by pyrolysis enters a gas separation purification chamber (4), slag (9) generated after coal pyrolysis can be conveyed to a slag treatment device (10), and the slag (9) is made into water permeable bricks (11) for paving; H2S (12) in the mixed gas (3) is in gas componentThe separation and purification chamber (4) can be completely separated by adsorption and desorption, and the raw material is input into a sulfur-containing high polymer material and chemical raw material production device (16) to produce polyphenylene sulfide or polyphenylene sulfide sulfone (17) and also produce thioether or mercaptan (18); the hydrogen (13) in the mixed gas (3) can also be purified by a pressure swing adsorption or membrane filtration method to be changed into pure hydrogen (13), the hydrogen (13) can be used for other chemical raw materials or used as fuel of a hydrogen fuel cell, and can not be purified if not used, and continuously exists in the mixed gas (3); CO in the mixed gas (3)2(23) Can also be purified and the CO discharged from the subsequent waste heat boiler2(23) The carbon fertilizer is supplied to a plant factory (19) of agriculture together, and a high-quality agricultural product (20) is produced by the plant factory (19), the agricultural product (20) can supply a raw material for a food processing plant (22), and the CO is supplied to the plant factory (19)2(23) Dry ice (21) can also be made, and can be used as raw material of food processing plant (22) or as cold-storage medium of cold chain food; the rest in the gas separation and purification chamber (4) is mainly combustible gas (5), the main component of the gas (5) is CO or hydrogen (13) (if not purified) which is supplied to the gas turbine (6) to be used as fuel to burn and push the gas turbine (6) to drive the generator to generate electricity (14), and the high-temperature tail gas discharged by the gas turbine (6) is mainly CO2(23) The water steam can be introduced into a waste heat boiler to generate high-grade steam (24) by using waste heat, the high-grade steam (24) can be used for pushing a steam turbine (8) to do work to drive a generator to generate electric power (14), the high-grade steam (24) from the waste heat boiler (7) can be supplied to a sulfur-containing high polymer material and chemical raw material production device (16) which needs steam, and the low-grade steam (15) from an outlet of the steam turbine (8) can be supplied to a plant factory (19) for temperature control application; wherein the power (14) generated by the gas turbine (6) and the steam turbine (8) can be used for the equipment of a slag processing device (10), a sulfur-containing high polymer material and chemical raw material production device (16) and a plant factory (19).
2. The new coal gasifier (2) according to claim 1 is characterized by a maximum working temperature between 900 ℃ and 1000 ℃ that allows the pyrolysis of coal into a completely gaseous mixture of gas and slag, or into a gaseous mixture, tar and slag.
3. The gas turbine (6) according to claim 1, characterized in that the compressor total pressure ratio ranges from 5 to 20 and the turbine front temperature ranges from 800 to 1200 ℃.
4. The novel coal gasifier (2) according to claim 1 is an industrial type furnace such as a coal-to-gas furnace, a coke oven, and a dry distillation furnace for producing semi coke, which use coal as a raw material.
5. The process of the invention, in which H2S is used in combination with chemical plants for the production of polyphenylene sulfide, polyphenylene sulfide sulfone, sulfide or mercaptans, can also be used as a desulfurization process for natural gas desulfurization and gasification of other raw materials (sulfur-containing rubbers, plastics, etc.).
CN201910799339.5A 2019-08-28 2019-08-28 Coal carbon clean and efficient utilization treatment process Pending CN112442393A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114917722A (en) * 2022-07-21 2022-08-19 广州能源检测研究院 Gaseous high temperature desorption of active carbon VOCs and coupling processing system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114917722A (en) * 2022-07-21 2022-08-19 广州能源检测研究院 Gaseous high temperature desorption of active carbon VOCs and coupling processing system
CN114917722B (en) * 2022-07-21 2022-10-18 广州能源检测研究院 Gaseous high temperature desorption of active carbon VOCs and coupling processing system

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