Treatment process of raw heating gas,申请号CZ19940001011-传众专利搜索

Treatment process of raw heating gas

申请公布号：CZ287393(B6)

申请号：CZ19940001011

申请日期：1994.04.26

申请公布日期：2000.11.15

申请人：

TEXACO DEVELOPMENT CORPORATION

发明人：WALLACE PAUL STEVEN ING.;THACKER PRADEEP STANLEY ING.

分类号：C01B3/32;C01B3/36;C01B3/52;C10J3/46;C10L3/10;F01K23/06;F02C3/28;F02C7/22;(IPC1-7):C10J3/46

主分类号：C01B3/32

摘要：<p>After leaving reaction zone of a vertical gas generator (1) raw heating gas is first cooled down to a temperature above water dew point, and namely by indirect heat exchange with a circulating boiler water in which steam is generated. Further the stream of the raw heating gas being freed of slag is distributed in two separate streams (A, B) from which each is further cooled to a temperature above the water dew point by another heat exchange with circulating boiler water from which steam is generated, whereby the first stream (A) of the raw heating gas is further cooled by indirect heat exchange to a temperature above the water dew point, and namely by a stream of gaseous nitrogen that is heated thereby, whereupon it is scrubbed with water in order to remove chlorine. The other stream (B) of the raw heating gas is further cooled by indirect heat exchange to a temperature above the water dew point, and namely by a stream of a clean heating gas being free of chlorine and sulfur, which clean heating gas is heated thereby, whereupon it is scrubbed like the first flow (A) with water in order to remove chlorine. So treated streams (A, B) of clean heating gas are then combined in one stream that is cooled by the indirect heat exchange with a circulating boiler water, cold water or another cooling medium. When cooled it is introduced in a zone (AGR, 110) of conventional removal of acid gases containing sulfur and subsequently it is again heated by the indirect heat exchange, firstly by steam and then by the second stream (B) of the raw heating gas. After heating the already pure heating gas, being free of chlorine and sulfur is conducted together with air stream and a stream of heated gaseous nitrogen in a combustion chamber (50) of a gas turbine (122) under generation of waste products, free of hydrogen chloride HCl, sulfur gases and nitrogen oxides NOx.</p>