文献类型：专利

英文题名：Process for purifying and recovering waste SOx gas from coal boiler - by scrubbing with ammonia solution

作者：XIAO W;WU Z;TU J

机构：[1]UNIV EAST CHINA SCI & TECHNOLOGY

申请号：CN1226459-A

申请日：1999-01-07

公开日：1999-08-25

语种：英文

收录：DERWENT

摘要：A process for purifying and recovering SO2 in the waste gas from coal-burning boiler includes such technological steps as dusting flue, cooling, absorbing SO2 with ammonia, neutralization with solution of ammonium sulfite, preparing sulfuric acid and preparing ammonium sulfate. A combined absorption tower integrating washing, dusting, cooling and absorbing functions is disclosed. USE - Removing SOx from boiler waste gas. ADVANTAGE - Low cost of operation, low energy consumption,compact structure, and less investment.