System and process for trapping sulfur dioxide and carbon dioxide by ammonia absorption at atmospheric pressure

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United States of America Patent

PATENT NO 8858905
SERIAL NO

14000162

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Abstract

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A system and a process for capture and absorption of sulfur dioxide and carbon dioxide by an ammonia method at normal pressure are disclosed. The system has a dilute ammonia water supply device connected with sulfur dioxide and carbon dioxide absorption devices; an induced draft fan is connected with a heat exchanger connected with the sulfur dioxide absorption device; a sulfur dioxide absorption tower is connected with a carbon dioxide absorption tower; cooling devices in the sulfur dioxide and carbon dioxide absorption towers share a cooling water inlet and outlet pipe; the sulfur dioxide and carbon dioxide absorption devices respectively restore ammonia concentration to original ammonia water concentration by supplementing concentrated ammonia water; the sulfur dioxide and carbon dioxide absorption devices respectively pump solutions into the heat exchangers, then the solutions enter crystallization tanks; solid-liquid separation is performed through centrifuges, and the liquid continues to circulate in the system.

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Patent Owner(s)

Patent OwnerAddress
ANHUI HUAIHUA CO LTD232038 ANHUI PROVINCE HUAINAN CITY TIANJIA'AN DISTRICT QUANSHAN ANHUI HUAIHUA LIMITED BY SHARE LTD TECHNOLOGY DEVELOPMENT CENTER HUAINAN CITY ANHUI PROVINCE 232038

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chen, Lin Huainan, CN 717 4332
Han, Song Huainan, CN 94 2831
Li, Hanxu Huainan, CN 4 3
Min, Fanfel Huainan, CN 1 3
Su, Chuanhao Huainan, CN 1 3
Xu, Jingyao Huainan, CN 1 3
Zhang, Mingxu Huainan, CN 3 3

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