一种新型绿色汞清洗剂的应用研究  

Research of a New Green Mercury Cleaning Agent

作　　者：文韵豪[1] 雷华[2] 李庆[1] 杨紫晴 张烜玮 Wen Yunhao;Lei Hua;Li Qing;Yang Ziqing;Zhang Xuanwei(PetroChina Engineering and Planning Institute,Beijing 100083;Zhejiang University,Hangzhou 310058;PetroChina Tarim Oilfield Company,Bayingoleng 841000)

机构地区：[1]中国石油天然气股份有限公司规划总院,北京100083 [2]浙江大学,浙江杭州310058 [3]中国石油天然气股份有限公司塔里木油田分公司,新疆巴音郭楞841000

出　　处：《石化技术》2024年第2期13-15,12,共4页Petrochemical Industry Technology

摘　　要：主要研究了一种二烷基二硫代次膦酸盐和乙醇组成的汞清洗剂,利用二烷基二硫代次膦酸盐与汞形成配位化合物、采用乙醇作为溶剂体系,在溶剂和配位体作用下,可以让大汞珠转变为细微的配位体颗粒物,分散于乙醇中,无搅拌情况下剥离沉积在壁面的汞,并实现了对沉积于设备内壁的汞的清洗。该工艺的含汞配位体通过简单过滤实现与清洗剂分离,汞清洗剂可循环利用,含汞物可作固废处理,而且所用的清洗剂不腐蚀设备,是一种绿色汞清洗剂。分析了影响洗汞效果的各种因素,得到了最优的洗汞工艺:2%的浓度,保持中性或弱碱性,室温处理,漫灌浸泡不少于6hr。This article studies a mercury cleaning agent composed of dialkyl dithiophosphinate and ethanol.The cleaning agent utilizes dialkyl dithiophosphinate to form a coordination compound with mercury,and ethanol is used as the solvent system.Under the action of solvent and coordination compound,large mercury beads can be transformed intofine coordination compound particles,which are dispersed in ethanol.Without stirring,the mercury deposited on the wall can be peeled off.The cleaning of mercury deposited on the inner wall of the equipment can be achieved.The mercury containing coordination compound in this process is separated from the cleaning agent through simplefiltration.The mercury cleaning agent can be recycled,and the mercury containing substances can be treated as solid waste.Moreover,the cleaning agent used does not corrode the equipment,making it a green mercury cleaning agent.Various factors affecting the effectiveness of washing mercury were studied,and the optimal washing mercury process was obtained:2%concentration,neutral or weakly alkaline,room temperature treatment,and flooding soaking for no less than 6 hours.

关 键 词：含汞天然气 处理设备 清洗剂 非氧化化学处理 二烷基二硫代次膦酸盐 

分 类 号：TQ649.6[化学工程—精细化工]