Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
August 11, 2015
Patent Application Number
12994851
Date Filed
May 25, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
An HRSG for fluidized bed gasification comprises a high temperature evaporator (200), a superheater (300), a low temperature evaporator (400), and an economizer (500) connected in series. The superheater (300), the low temperature evaporator (400) and the economizer (500) have a water-tube structure, and the high temperature evaporator (200) has a fire-tube structure. The HRSG of the present invention allows efficient heat recovery from the raw syngas of a fluidized bed coal gasifier, while avoids or reduces the corrosion of and damage to the components of the HRSG caused by high-speed ash particles in the syngas.
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