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石油与天然气化工
CHEMICAL ENGINEERING OF OIL & GAS
常规单塔汽提工艺在火炬装置中的应用
曹文全韩晓兰王贵清王国庆宋伟
中石化西南油气分公司元坝净化厂
2017
摘要介绍了常规单塔汽提工艺在元坝净化厂火炬装置中的运行情况，考察了火炬装置水对罐的酸性水经单塔汽提处理后净化水质的各项指标，对运行过程中出现的问题进行了具体分析并提出对策。该工艺在元坝净化厂火炬装置两年的运行结果表明，净化水的各项指标均达到设计要求，保证了火炬装置水封罐的酸性水可循环使用，减少了酸性水排至污水处理厂的量，有利于环境保护。该工艺在元坝净化厂火炬装置的成功应用，可为同类高含硫天然气净化厂火炬装置的改造提供借鉴。
关键词单塔汽提火炬净化水改造
中图分类号：TE992.2
文献标志码：B
D0I:10.3969/i.issn.1007-3426.2017.02.003
Application of conventional single tower stripping
processintorchdevice
CaoWenquan,HanXiaolan，WangGuiqing，WangGuoqing,SongWei
Yuanba Gas Purification Plant , Southaest Oil and Gas Company , Sinopec, Guangyuan, Sichuan, Chind
Abstract: The operation of the conventional single tower stripping process in the torch device of Yuanba Purification Plant was introduced . After the acid water of torch device was stripped by single tower, the purified water indicators were studied and problems analysis and countermeasures in the course of operation were made . The operation results of the process in the Yuanba Purification Plant for two years showed that all the indexes of the purified water reached the design requirements . The acid water of water sealed tank could be recycled in the torch device , the acid water capacity to the sewage treatment plant and the environmental pressure was reduced . The successful application of the technology in the Yuanba Purification Plant could provide reference for the transformation of the torch device in similar high sulfur natural gas purification plant .
Key words : single tower stripping,torch, purified water, transformation
火炬系统是石油、天然气、化工、冶金、环保等行业
生产过程中的安全排放设施。元坝净化厂火炬装置用于处理净化厂、集气总站及元坝首站等装置各种工况下排放的火炬气，火炬气在空中点燃，火炬气中的烃类、H:S及其他硫化物转变为CO2、SO2及水等,以减少环境污染，达到环保要求。元坝净化厂火炬高压最
大瞬间放空量为（20℃，101.325kPa，下同） 300000.0m/h，低压最大瞬间放空量为32646.8 m/h。为了防止回火，高、低压火炬放空管道上设有水封罐，水封罐内的水需定期更换，由于排放的污水中含有H2S，设置火炬酸水汽提装置处理该酸性水。当放空量较大时，水封罐将会集聚大量的硫化物，此时需
作者简介票文全（1981一），男，山西大同人，工程师，硕士，主要从事高含硫天然气净化、硫磺回收技术研究工作。E-mail： 1858337858节教据om