Hydrocarbon feedstock gasifier

Abstract

A hydrocarbon feedstock gasifier (gasifier) is provided with: a heat transmission surface disposed within a gasification region of a gasifier configured from a pressure vessel for generating produced gas by partially oxidizing coal which is a hydrocarbon feedstock; a heat exchanger disposed on the path of a circulation line for a circulation medium circulating within the heat transmission surface and for exchanging the heat of the circulation medium; and a circulation pump for circulating the circulation medium.

1 . A hydrocarbon feedstock gasifier, comprising:
 a gasifier for generating gasification gas by partially oxidizing a hydrocarbon feedstock;   a heat transmission surface provided within a gasification region of the gasifier;   a circulation line for circulating a circulation medium within the heat transmission surface;   a heat exchanger disposed on a path of the circulation line, for exchanging the heat of the circulation medium; and   a circulation pump for circulating the circulation medium.   
     
     
         2 . The hydrocarbon feedstock gasifier according to  claim 1 , wherein the heat transmission surface is a panel type heat transmission surface, and a plurality of heat transmission surfaces is provided along an inner surface of a peripheral wall of the gasifier. 
     
     
         3 . The hydrocarbon feedstock gasifier according to  claim 1 , wherein the heat transmission surface is a panel type heat transmission surface, and a plurality of heat transmission surfaces is provided within a space of the gasifier with predetermined intervals. 
     
     
         4 . The hydrocarbon feedstock gasifier according to  claim 1 , wherein the heat transmission surface is a panel type heat transmission surface, and a plurality of heat transmission surfaces is radially provided within a space of the gasifier with predetermined intervals. 
     
     
         5 . The hydrocarbon feedstock gasifier according to  claim 1 , wherein steam is further injected in addition to a normal operating condition of gasification. 
     
     
         6 . The hydrocarbon feedstock gasifier according to  claim 1 , wherein the gasifier is a two-stage entrained flow gasifier including
 a combustor provided on a lower side within the gasifier, and   a reductor provided on an upper side of the combustor.   
     
     
         7 . The hydrocarbon feedstock gasifier according to  claim 6 , wherein steam is injected into one of or both the reductor and the combustor in addition to a normal operating condition of gasification. 
     
     
         8 . The hydrocarbon feedstock gasifier according to  claim 1 , further comprising:
 a thermometer for measuring a temperature of produced gas at an exit of the reductor of the gasifier; and   a controller for controlling one of or both a temperature and a flow rate of the circulation medium supplied to the heat transmission surface so that an exhaust temperature of the produced gas is a predetermined temperature.   
     
     
         9 . The hydrocarbon feedstock gasifier according to  claim 1 , further comprising:
 a gas composition analyzer for measuring a gas composition of produced gas at an exit of the reductor of the gasifier; and   a controller for controlling one of or both a temperature and a flow rate of the circulation medium supplied to the heat transmission surface so that a gas composition of the produced gas is a predetermined composition.