高含硫天然气净化厂除有机磷应用  

The Application Organic Phosphorus Removal in Natural Gas Processing Plant with High Sulfur Content

作　　者：孙亚琴 史文广 贺贤伟[2] 王洪春[3] 霍海州 Sun Yaqin;Shi Wenguang;He Xianwei;Wang Hongchun;Huo Haizhou(Environmental Monitoring Station of Dazhou City,Sichuan Province;Puguang Branch,Sinopec Zhongyuan Oilfield;Technical Monitoring Center,of Zhongyuan Oilfield Branch of Sinopec)

机构地区：[1]四川省达州市环境监测站 [2]中国石化中原油田普光分公司 [3]中国石化中原油田分公司技术监测中心

出　　处：《油气田环境保护》2020年第3期18-21,61,共5页Environmental Protection of Oil & Gas Fields

摘　　要：为响应四川省《关于加强工业循环冷却水环境监管的通知》要求,普光气田天然气净化厂先后开展循环水无磷药剂调研及现场实验、循环水排污水除磷调研和实验室小试及现场中试,优选了化学除磷(含有机硫)的工艺及药剂配方,采用“高密度沉淀+V型滤池”工艺,集成PLC全自动控制系统,建成化学法除高浓度有机磷钢结构一体化装置。装置运行期间,各项除磷指标均达到设计值,除磷后总磷(以P计)含量平均值低于0.5 mg/L,实现了循环水排污水处理后达到GB 8978—1996《污水综合排放标准》,减少了总磷的排放量。Puguang gas field natural gas processing plant had carried out the investigation and field experiment of phosphorus-free chemicals for circulating water,the investigation and research of phosphorus removal from circulating water wastewater,In response to the requirements of notice on strengthening the environmental supervision of industrial circulating cooling water issued by Sichuan Province.Based on the lab-scale and the pilot test,phosphorus removal(including organic sulfur)process and chemical formula were optimized,and a“high-density precipitation+V shape filter”process was adopted.integrated with PLC full-automatic control system,In addition,a steel structure device for chemical removal of high concentration of organic phosphorus was built with an integrated fully-automated PLC system.During the trial operation of the device,all the phosphorus removal indexes had reached the designed value,and the average content of total phosphorus(calculated by P)after phosphorus removal was lower than 0.5 mg/l.This device could satisfy“The Comprehensive Wastewater Discharge Standard”(GB8978-1996)after the treatment of circulating water discharge,and reduce the total phosphorus discharge.

关 键 词：除有机磷 高密度沉淀 循环水排污 

分 类 号：TE685[石油与天然气工程—油气加工工程] X743[环境科学与工程—环境工程]