Huaneng Clean Energy Research Institute

China Huaneng Group Co., Ltd

Shiqing Wang

Shiwang Gao

Jinyi Wang

Hongwei Niu

Lianbo Liu

Ping Xiao

Bin Huang

Shisen Xu

Minhua Jiang

He Zhao

Dongfang Guo

Qixiang Fan

Shaomin Wang

A method for desulfurizing and decarbonizing a flue gas includes: feeding a boiler flue gas after denitrating and dedusting to a water cooler; cooling the boiler flue gas in the water cooler to a temperature near room temperature, and discharging condensed water; feeding a wet flue gas to a washing tower; washing and cooling the wet flue gas with a washing liquid to separate HO, SOand COin a solid form from the flue gas; feeding a solid-liquid mixed slurry from a bottom of the washing tower to a solid-liquid separator to separate solid HO, SOand COfrom the washing liquid; feeding the solid HO, SOand COto a rectification separation column; separating COfrom SOand HO by a reboiler at a bottom of the rectification separation column; and discharging CO, SOand HO.

System and method for desulfurizing and decarbonizing flue gas

Provided are a device and a method for purifying an organic amine solution. The device includes an ion exchange bed having an upper feeding port, through which the ion exchange bed is communicated with an inert gas cylinder, a fifth liquid storage tank and a second liquid adding pump; a lower feeding port, through which the ion exchange bed is communicated with a first liquid adding pump; a lower discharging port, through which the ion exchange bed is communicated with a second liquid storage tank, a third liquid storage tank and a fourth liquid storage tank; and an upper discharging port, through which the ion exchange bed is communicated with the fourth liquid storage tank.

Device and method for purifying organic amine solution

A system for integrated removal of multiple pollutants includes an economizer, an air preheater, an electrostatic precipitator, a flue gas cooler and a low-temperature adsorber; the economizer has a shell side inlet for feeding boiler flue gas, a tube side inlet for feeding boiler feedwater, and a shell side outlet connected to a tube side inlet of the air preheater; the air preheater has a shell side inlet for introducing boiler intake air, and a tube side outlet connected to the electrostatic precipitator; the electrostatic precipitator has a dust discharge port at a bottom thereof and a flue gas outlet connected to the flue gas cooler; the flue gas cooler has a condensate outlet at a bottom thereof and a cold flue gas outlet at a top thereof and connected to the low-temperature adsorber; and the low-temperature adsorber has a purified flue gas outlet at a tail thereof.

System and method for integrated removal of multiple pollutants in flue gas with near-zero emission

Disclosed is a flue gas low-temperature adsorption denitration system and process. The system includes a booster fan, a cold energy recoverer, a flue gas cooling system, a flue gas switching valve, and two denitration adsorption towers. An inlet of the booster fan is in communication with an inlet flue gas pipeline. The booster fan, the cold energy recoverer, the flue gas cooling system, the flue gas switching valve, and the denitration adsorption towers are sequentially communicated. An outlet of the flue gas switching valve is in communication with each of the two second denitration adsorption towers. Flue gas outlets of the two denitration adsorption towers are in communication with a flue gas manifold. The flue gas manifold is communicated with the cold quantity recoverer. Two denitration adsorption towers take turns to carry out denitration and regeneration processes, so that continuous denitration operations of the system can be achieved.

Flue gas low-temperature adsorption denitration system and process

The present invention discloses a flue gas low-temperature adsorption denitrification method, including: pressurizing a flue gas that has been subjected to dust removal and desulfurization, precooling the pressurized flue gas, cooling the precooled flue gas to a temperature lower than room temperature by a flue gas cooling system, flowing the flue gas at the temperature lower than room temperature into a low-temperature denitrification system, performing physical adsorption denitrification in the low-temperature denitrification system, precooling the flue gas that has been subjected to dust removal and desulfurization with the denitrificated flue gas, and flowing the heat-absorbed clean flue gas into a chimney to be discharged.

Flue gas low-temperature adsorption denitrification method

Provided is a method for desulphurizating and denitrating a flue gas in an integrated manner based on low-temperature adsorption. The method includes: decreasing a temperature of the flue gas below a room temperature by using a flue gas cooling system; removing moisture in the flue gas by using a dehumidification system; sending the flue gas to a SOand NOadsorbing column system; and simultaneously adsorbing SOand NOof the flue gas with a material of activated coke, activated carbon, a molecular sieve or diatom mud in the SOand NOadsorbing column system to implement an integration of desulphurization and denitration of the flue gas based on the low-temperature adsorption. With the present method, SOand NOof the flue gas can be adsorbed simultaneously in an environment having a temperature below the room temperature.

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Beijing, China

Shiqing Wang