新型硫化氢脱除剂对原油破乳脱盐的影响  

INFLUENCE OF NEW TYPE H_2S SCAVENGER ON CRUDE OIL DEMULSIFICATION AND DESALINATION

作　　者：张峰[1] 王振宇[1] Zhang Feng;Wang Zhenyu(SINOPEC Research Institute of Petroleum Processing,Beijing 100083)

机构地区：[1]中国石化石油化工科学研究院,北京100083

出　　处：《石油炼制与化工》2018年第9期37-42,共6页Petroleum Processing and Petrochemicals

基　　金：中国石油化工股份有限公司合同项目(S315903)

摘　　要：从对原油中H_2S的脱除性能、对静电场中原油乳状液破乳动力学和原油脱盐效果的影响等方面入手,将自主开发的复合脱除剂FHSS(Formulated Hydrogen Sulfide Scavenger)与典型三嗪类脱除剂(羟乙基六氢均三嗪,TRIAZINE)、新型胺类脱除剂[双(2-二甲氨基乙基)醚,BDMAEE]进行综合对比考察。结果表明:当FHSS在原油中的添加量(w)不低于36μg/g时,脱硫后原油的H_2S质量分数不超过0.55μg/g;FHSS与TRIAZINE的脱硫性能基本相当,而优于BDMAEE的脱硫性能;在实验考察的添加量范围(w=0~100μg/g)内,FHSS与TRIAZINE、BDMAEE均对原油乳状液在静电场中的破乳速率基本没有影响,破乳动力学可近似采用一级反应动力学数学模型来描述;三者均不影响原油电脱盐效果。Three kinds of H2S scavenger for crude oil were comprehensively compared in H2S removal performance,the influence on demulsification kinetics and desalination for crude oil in electric field.The three scavengers for comparison include a self-developed H2S scavenger(FHSS),hexahydro-1,3,5-tris-s-triazine(TRIAZINE)and a new amine-type Bis(2-dimethylaminoethyl)ether(BDMAEE).The results indicated that H2S content in desulfurized crude oil is not more than 0.55μg g if FHSS in crude oil is no less than 36μg g.FHSS presents the similar removal performance for H2S to TRIAZINE,and has slightly advantage over BDMAEE.Within the experimental range of additive amount(0-100μg g),FHSS,TRIAZINE and BDMAEE have no influence on demulsification rates of cured oil emulsions in electrostatic field,and the demulsification kinetics could be approximatively represented by the first-order kinetics equation for chemical reactions.Meanwhile,the three scavengers all do not affect crude oil desalination.

关 键 词：硫化氢 脱除剂 原油 破乳 动力学 脱盐 

分 类 号：TE39[石油与天然气工程—油气田开发工程]