公开(公告)号：WO1991014651A1

公开(公告)日：1991-10-03

申请号：PCT/US1991001835

申请日：1991-03-20

Applicant: MONSANTO COMPANY

Inventor： MONSANTO COMPANY ,  McALISTER, Donald, Ray ,  SCHNEIDER, Daniel, Robert

IPC: C01B17/765

CPC classification number: C01B17/765 ,  C01B17/7655 ,  C01B17/775 ,  C01B17/806 ,  Y02P20/124 ,  Y02P20/129

Abstract: An improved process for the recovery of high grade energy from a contact sulfuric acid manufacturing process. Improvements include: injection of steam between an intermediate catalyst stage and a heat recovery absorption tower and/or a heat exchanger for transfer of heat from conversion gas to high pressure boiler feed water; use of a condensing economizer for recovery of the vapor phase energy of formation of sulfuric acid from a wet conversion gas; and use of heat recovery system absorption acid for preheating air to a sulfur burner, the heat transferred to the combustion air being recovered at high pressure and temperature in a waste heat boiler.

Abstract translation: 一种从接触式硫酸制造过程中回收高级能量的改进方法。 改进包括：在中间催化剂级和热回收吸收塔之间注入蒸汽和/或用于将热量从转化气体转移到高压锅炉给水的热交换器; 使用冷凝节能器从湿转化气体回收形成硫酸的气相能量; 并使用热回收系统吸收酸来将空气预热到硫燃烧器，传递到燃烧空气的热量在废热锅炉中以高压和高温回收。