ISOTHERMAL CONVERSION REACTOR WITH HIGH CO AND HIGH CONVERSION RATE, AND PROCESS THEREFOR

摘要

An isothermal carbon monoxide (CO) shift reactor having high CO conversion and the process technology comprises the outside pressure vessel; the catalyst unit; tipper and lower tube sheets welded with water tubes and bottom tee joints; the said outside pressure vessel has seal heads at the upper and lower ends; the said vessel has a water chamber and a steam chamber at the upper section. The catalyst unit comprises the upper catalyst bed with water tubes. There is a central pipe that is located in the said vessel, of which the upper end is located in the upper catalyst bed while the lower end is located in the lower catalyst bed; the said bottom tee joint has an inlet for feed gas, outlet for reacted shift gas and inlet for steam-water mixture; the said central pipe is installed with spray nozzle for steam-water mixture; the said reactor is applicable for process technologies for feed and effluent gas having different CO contents. Low temperature, high CO feed content, high shift conversion and low system pressure drop are direct results of this disclosure.

主权项

1. A reactor, comprising;
an outside pressure vessel defining a chamber, wherein said chamber comprises upper and lower tube sheets located at an upper section of said chamber: a bottom tee joint located at a bottom of the outside pressure vessel chamber, wherein said bottom tee joint has an unreacted gas entrance for unreacted gas, a reacted gas outlet for reacted gas, and a steam-water entrance for a steam-water mixture; an upper seal head coupled to an outside pressure vessel chamber upper end; a lower seal head coupled to an outside pressure vessel chamber lower end; a water chamber defined by said upper seal head and said upper tube sheet; a steam chamber defined by the upper tube sheet and a lower tube sheet, said water chamber is connected by connection tubes to said steam chamber located at the outside pressure vessel chamber upper end; an upper catalyst bed located at an upper mid portion of said outside pressure vessel chamber, said upper catalyst bed and an inner wall of the outside pressure vessel defining an annular space, wherein the unreacted gas flows through the unreacted gas entrance to said annular space to said upper catalyst bed and the reacted gas flows out of the lower catalyst bed through the reacted gas outlet; a lower catalyst bed located at a lower mid portion of said outside pressure vessel chamber; a supporting seal head is located between said upper catalyst bed and lower catalyst bed; and an inner unit of said outside pressure vessel comprises central tubes having a central tube upper end located in said upper catalyst bed and having a central tube lower end located in said lower catalyst bed, wherein said central tubes have a sprayer nozzle for said steam-water mixture, wherein said sprayer nozzle for steam-water mixture is connected to said steam water entrance.