油气田余热的低碳化综合利用  

COMPREHENSIVE UTILIZATION OF WASTE HEAT IN OIL-GAS FIELD

作　　者：常小虎[1,2] 陈祺锚 徐梦瑶 吕晓芳 郭靖 李艺超 Chang Xiaohu;Chen Qimao;Xu Mengyao;LüXiaofang;Guo Jing;Li Yichao(SINOPEC Northwest China Petroleum Bureau,Urumqi 830011;SINOPEC Key Laboratory for Enhanced Recovery from Seam Hole Reservoirs;Jiangsu Key Laboratory of Oil-Gas Storage and Transportation Technology;Shanghai Youhua System Integration Technology Co.,Ltd.)

机构地区：[1]中国石化西北油田分公司,新疆乌鲁木齐830011 [2]中国石化缝洞型油藏提高采收率重点实验室 [3]江苏省油气储运省重点实验室 [4]上海优华系统集成技术股份有限公司

出　　处：《石油炼制与化工》2023年第9期119-124,共6页Petroleum Processing and Petrochemicals

摘　　要：在“双碳”目标的背景下,石化企业需要不断提高生产过程中的能源利用效率,尤其是对其中低品位余热的合理回收与利用。通过对中国石化集团某石油、天然气处理工作站的主要热物料热量回收情况进行分析,通过冷热物流匹配分析得到最佳夹点温度为7℃左右,合理夹点温度范围为5~32℃,而工作站20℃以上物流夹点温差为44.1℃,总体传热温差偏高,余热有较大的回收潜力。采用压缩式热泵技术对可利用余热进行回收与利用的结果表明:全站可以降低能耗约10.62×10^(6)kgce/a(1 kgce=29.3 MJ),减少CO_(2)排放约13525 t/a;通过节约天然气用量,预计每年创造收益685万元,通过减少CO_(2)排放,每年可创造收益67.6万元。Under the background of“double carbon”target,petrochemical enterprises need to continuously improve the efficiency of energy utilization in the production process,especially the reasonable recovery and utilization of low-grade waste heat.Based on analysis of the heat recovery of the main hot materials of an oil and natural gas processing workstation of SINOPEC Corporation,the optimal pinch point temperature was found to be about 7℃,and the reasonable pinch point temperature ranged from 5℃to 32℃by the matching analysis of cold and hot logistics.While the pinch point temperature difference of the logistics above 20℃in the workstation was 44.1℃,the overall heat transfer temperature difference was on the high side,and the waste heat had a great recovery potential.The results of the recovery and utilization of available waste heat by using compression heat pump technology showed that the total station could reduce energy consumption by about 10.62×10^(6)kgce/a(1 kgce=29.3 MJ)and reduce CO_(2)emissions by about 13525 t/a.It was estimated to generate 6.85 million Yuan a by saving natural gas consumption and 676000 Yuan a by reducing CO_(2)emissions.

关 键 词：余热回收 压缩式热泵技术 用能优化 

分 类 号：TE43[石油与天然气工程—油气田开发工程]