Method for inhibiting high temperature corrosion of heat exchange surface of biomass boiler

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PATENT NO 11994286
SERIAL NO

17500360

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Abstract

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A method of preventing high temperature corrosion on a heat exchanging surface of a biomass boiler, including: a first feeding step, supplying a first biomass fuel to the boiler; a deposition step, performing combustion on the first biomass fuel during initial operation of the boiler, and forming an inert deposition layer on a surface of a heat exchanger of the boiler; a second feeding step, supplying a second biomass fuel different from the first biomass fuel to the boiler; and a normal combustion step, performing combustion on the second biomass fuel. A direct contact of an alkali metal chloride with a metal pipe wall is prevented by forming an inert deposition layer on the surface of the heat exchanger of the boiler in the deposition step, thereby establishing a physical barrier between the heat exchanging surface and the alkali metal chloride to prevent corrosion on the metal pipe wall.

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Patent Owner(s)

Patent OwnerAddress
ZHEJIANG UNIVERSITYDEPARTMENT OF CHEMISTRY NO 866 YUHANGTANG ROAD XIHU DISTRICT HANGZHOU ZHEJIANG 310058

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Cheng, Leming Hangzhou, CN 7 27
Fang, Mengxiang Hangzhou, CN 15 31
Luo, Zhongyang Hangzhou, CN 20 34
Wang, Qinhui Hangzhou, CN 14 31
Yu, Chunjiang Hangzhou, CN 13 28
Zhang, Hengli Hangzhou, CN 1 0

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