Methods for recovering high grade process energy from a contact sulfuric acid process
- 作者：McAlister ; Donald ; Schneider ; Daniel
- 刊名：Applied Thermal Engineering
- 出版年：1996
- 期刊代码：8_13594311
- 类别：ce
- 出版时间：December, 1996
- 卷：16
- 期：12
- 页码：V
- 文件大小：79.0 K
摘要
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.