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炼油厂含硫污水预处理及综合利用
引用本文:林本宽.炼油厂含硫污水预处理及综合利用[J].炼油技术与工程,1999,29(8):43-49.
作者姓名:林本宽
作者单位:洛阳石油化工程公司,河南省,洛阳市,471003
摘    要:对3种原油采用不同加工过程的含硫污水组成以及几套含硫污水汽提装置的原料水和净化水组成进行了比较。介绍了空气氧化和蒸汽汽提等含硫污水预处理工艺的原理、流程和特点。对针对气相中硫化氢和氨的出路而开发的各种蒸汽汽提工艺,如回收硫化氢和氨的汽提工艺(包括单塔加压侧线抽出汽提工艺、双塔加压汽提工艺、CLL氨回收工艺、美国钢铁公司氨回收工艺)、回收硫化氢而不回收氨的汽提工艺、硫化氢和氨都不回收的汽提工艺以及回收氨的精制工艺等作了详细分析,并提出了含硫污水中的氨是否回收的问题。最后指出减少催化裂化和油品加氢装置含硫污水量以及净化水综合利用应采取的措施。

关 键 词:炼油厂  含硫废水  组成  预处理  汽提  净化  废水    综合利用  环境保护
修稿时间:1999-05-13

PRETREATMENT AND COMPREHENSIVE UTILIZATION OF SOUR WATER IN PETROLEUM REFINERIES
Lin Benkuan.PRETREATMENT AND COMPREHENSIVE UTILIZATION OF SOUR WATER IN PETROLEUM REFINERIES[J].Petroleum Refinery Engineering,1999,29(8):43-49.
Authors:Lin Benkuan
Affiliation:Luoyang Henan 471003
Abstract:Compositions of sour water from units processing three different crudes and compositions of feed water and purified water of several sour water strippers were compared. Principles, flow schemes, and characteristics of sour water pretreatment processes such as air oxidation and steam stripping etc. were introduced. Various steam stripping processes developed for the outlet of hydrogen sulfide and ammonia in gas phase (including single column pressurized stripping process with side-draw, double column pressurized stripping process, the CLL ammonia recovery process and American Iron & Steel Co's ammonia recovery process), stripping process recovering hydrogen sulfide and no ammonia, stripping process recovering neither hydrogen sulfide nor ammonia and refining process recovering ammonia etc. were analyzed in detail. Finally, the problem whether recover the ammonia in sour water or not was proposed, together with the measure decreasing sour water amount from FCC unit and oil hydrotreating units, and the comprehensive utilization of purified water were put forward.
Keywords:petroleum refinery  sour water composition  pretreatment  stripping  purification  waste water  ammonia  comprehensive utilization  environmental protection  
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