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Ammonia-coal mixed combustion system and method

A technology of mixed combustion and liquid ammonia, applied in separation methods, chemical instruments and methods, steam generating devices, etc., can solve problems that have not been seen yet, achieve the effects of preventing burning loss, improving thermal efficiency, and reducing CO2 and NOx emissions

Pending Publication Date: 2022-05-13
XIAN TPRI BOILER ENVIRONMENTAL PROTECTION ENG CO LTD
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  • Abstract
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Problems solved by technology

[0003] my country currently has the largest installed capacity of coal-fired units in the world, and is facing enormous pressure to reduce carbon emissions. However, it has not yet seen large-scale use of non-hydrocarbon fuels by coal-fired units to reduce CO2 emissions. 2 Emissions Success Stories

Method used

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  • Ammonia-coal mixed combustion system and method

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Embodiment Construction

[0021] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only The embodiments are a part of the present invention, not all embodiments, and are not intended to limit the scope of the present invention. Also, in the following description, descriptions of well-known structures and techniques are omitted to avoid unnecessarily obscuring the concepts disclosed in the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0022] The schematic diagrams of the structures according to the disclosed embodiments of th...

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Abstract

The invention discloses an ammonia-coal mixed combustion system and method. The system comprises a liquid ammonia storage tank, a liquid ammonia evaporator, a boiler, a liquid ammonia heater and denitration equipment, an outlet of the liquid ammonia storage tank is communicated with an inlet of the liquid ammonia evaporator and a working medium side inlet of the liquid ammonia heater, a working medium side outlet of the liquid ammonia evaporator is communicated with a first ammonia gas inlet and a second ammonia gas inlet of the boiler, a raw coal inlet is formed in the boiler, and a flue gas outlet of the boiler is communicated with an outlet of the denitration equipment; and a working medium side outlet of the liquid ammonia heater is communicated with an inlet of denitration equipment. According to the system and the method, CO2 emission can be reduced by utilizing non-hydrocarbon fuel.

Description

technical field [0001] The invention belongs to the field of thermal power generation utilization, and relates to an ammonia-coal mixed combustion system and method. Background technique [0002] In order to realize the CO 2 The goal of emission reduction, carbon dioxide capture, utilization and storage (Carbon Capture, Utilization and Storage, CCUS) technology has become an important development direction of coal power units. For coal-fired power units, in addition to reducing costs, the adoption of CCUS technology is more important to realize the capture of CO 2 Utilization and storage of CO currently captured on a large scale 2 It is mainly used for oil flooding in oil fields or storage in saline water layers, but subject to geological conditions, not all coal-fired units have CO 2 Storage conditions. Therefore, burning zero-carbon fuels has become an important way for coal-fired units to reduce CO2 emissions. [0003] my country currently has the largest installed c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/56B01D53/76B01D53/86F22B33/18B01B1/00
CPCB01D53/56B01D53/76B01D53/8631F22B33/18B01B1/005B01D2251/2062B01D2258/0283
Inventor 王一坤丹慧杰贾兆鹏周飞李文锋
Owner XIAN TPRI BOILER ENVIRONMENTAL PROTECTION ENG CO LTD
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