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Energy-saving water-saving gas/steam cogeneration gasifying process

A process and process technology, which is applied in the fields of energy-saving and water-saving gas/steam co-production gasification process, clean and efficient utilization of coal gasification process route, and can solve the problem of low load capacity of single furnace, low thermal efficiency of gasifier, and low energy utilization rate and other problems, to achieve the effect of reducing equipment investment, reliable operation and good economic benefits

Active Publication Date: 2018-01-30
宁夏神耀科技有限责任公司
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Problems solved by technology

Although this technology has the advantages of short process and low cost, it also has defects such as low energy utilization rate and high water consumption.
[0005] In general, modern coal gasification technology still has problems such as low single furnace load capacity, low thermal efficiency of gasifier, and large water consumption in the gasification process, and the gasification process is still in the growth stage of upgrading and demonstration

Method used

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  • Energy-saving water-saving gas/steam cogeneration gasifying process

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Embodiment Construction

[0027] Such as figure 1 As shown, a device used in an energy-saving water-saving gas / steam cogeneration gasification process includes a gasifier 1, a radiation waste pot 2, a connecting pipe 3, a convection waste pot 4, a cyclone separator 5, and a Venturi Scrubber 6 and carbon washing tower 7; including steam drum 8, steam drum 8 is respectively connected with radiation waste pot 2 and convection waste pot 4; includes chilling pool 9 and slag lock bucket 10 located at the bottom of radiation waste pot 2 and connected in sequence , slag pool 11 and the first tank car 12; comprise coal ash temporary storage tank 13, coal ash lock bucket 14, coal ash cooling collection bin 15, the second tank car 16 that are positioned at the bottom of cyclone separator 5 and connect successively; Wherein, connecting pipe 3. The included angle with the horizontal line is 45°; in addition, the bottom of the coal ash temporary storage tank 13 is also equipped with a high-pressure nitrogen fluidiza...

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Abstract

The invention belongs to the technical field of coal chemical industry, and relates to a gasifying process route for clean and efficient utilization of coal, in particular to an energy-saving water-saving gas / steam cogeneration gasifying process. The gasifying process includes that a carbon-containing powder material reacts with an oxidant in a gasifying furnace, generated high-temperature synthetic gas and waste residue are directly cooled by a radiation waste pot, and high-temperature sensible heat is recycled to generate high-quality steam; gas-solid separation is performed through a dry deashing process, and a downstream process is proceeded. By utilizing the gasifying process, sensible heat of high-temperature raw gas and high-temperature slag is recycled, high-temperature high-pressure steam can be obtained at the same time, gas-steam cogeneration is realized, water resources are saved, and energy utilization efficiency is improved; the gasifying process has good economic benefitand is reliable in running, environment-friendly and efficient.

Description

technical field [0001] The invention belongs to the technical field of coal chemical industry and relates to a gasification process route for clean and efficient utilization of coal, in particular to an energy-saving and water-saving gas / steam cogeneration gasification process. Background technique [0002] Coal gasification technology is the leading technology in the coal chemical industry. In recent years, coal gasification technology has achieved remarkable results and progress, especially pulverized coal gasification technology, because of its good adaptability to coal types, high gasification efficiency, and excellent environmental protection performance, it has gradually become the preferred technology for coal gasification; especially The chilled process pulverized coal pressurized gasification technology has become the mainstream technology of modern coal chemical industry. The main research direction is the large-scale, energy-saving, water-saving and large-scale be...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10J3/46C10J3/84F22B1/18
CPCY02P20/10Y02P20/129
Inventor 匡建平姚敏焦洪桥黄斌夏支文张镓铄郭中山杨加义杨建荣赵元琪张利军周峰范为鹏
Owner 宁夏神耀科技有限责任公司
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