石油炼制与化工

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炼油装置低温热回收大小系统的综合应用

罗勤高   

  1. 中石化九江分公司
  • 收稿日期:2008-10-30 修回日期:1900-01-01 出版日期:2009-06-12 发布日期:2009-06-12
  • 通讯作者: 罗勤高

INTEGRATED UTILIZATION OF SYSTEMS FOR RECOVERING LOW TEMPERATURE HEAT FROM REFINING UNITS

  • Received:2008-10-30 Revised:1900-01-01 Online:2009-06-12 Published:2009-06-12

摘要: 针对中国石化九江分公司炼油装置低温热系统的低温热利用有限、而气分装置和重油罐区的维温还在使用1.0MPa蒸汽的现状,通过合理匹配热源、热阱,按照温度对口、梯级利用的原则,科学地建立了低温热回收大小系统,其中大系统是在现有的两套低温热水系统的基础上合并,先后经过多次分合,最后进入储水罐,经泵送入热源装置取热;小系统是焦化装置供原油罐区的低温热系统。低温热回收大小系统的投用是在各炼油装置充分开展节能降耗的基础上进行的,投用后炼油综合能耗在已下降的基础上又降低了125.47 MJ/t,节能效果较好。

关键词: 综合利用, 低温热, 回收

Abstract: By analyzing the present status of low-temperature heat (LTH) utilization in SINOPEC Jiujiang Company such as still using 1.0 MPa steam in crude oil tank farm, systems optimization for utilizing LTH from refining units was conducted. Two refinery-wide LTH recovery systems were set up: the large one was based on combining the original two LTH recovery systems for fully and effectively using these heat resources; the smaller one was mainly consisted of coking unit and crude oil tank farm. Since these systems were implemented, the comprehensive refining energy consumption was further reduced by 125.47 MJ/t.

Key words: integrated application, low temperature heat, recovery