石油与天然气化工
石油與天然氣化工
석유여천연기화공
CHEMICAL ENGINEERING OF OIL AND GAS
2015年
4期
8-13
,共6页
刘勇%张万全%李峰%袁侃%姚孙坤
劉勇%張萬全%李峰%袁侃%姚孫坤
류용%장만전%리봉%원간%요손곤
排放%SO2%调查%分析%硫磺回收%炼油厂
排放%SO2%調查%分析%硫磺迴收%煉油廠
배방%SO2%조사%분석%류광회수%련유엄
emission%sulfur dioxide%investigation%analysis%sulfur recovery%refinery
针对某炼油厂硫磺回收联合装置排放尾气中SO2达标问题,分别从工艺及系统设计、装置设计、设备设施、操作等多方面进行了技术调查。分析结果表明,影响该装置排放尾气中SO2达标的直接原因为富胺液带油、带轻烃。进一步研究发现,造成系统带油、带轻烃的原因包括:气液分离设备偏小、贫胺液温度偏低、上游加氢脱硫装置循环油气温度偏高、上游加氢装置、富胺液再生装置的撇油设计不合理、胺液再生装置富胺液闪蒸罐火炬气排放设计流量不够等。针对上述问题,分别从系统及工艺流程设计、工艺指标、操作、设备改造等多方面提出了整改措施。
針對某煉油廠硫磺迴收聯閤裝置排放尾氣中SO2達標問題,分彆從工藝及繫統設計、裝置設計、設備設施、操作等多方麵進行瞭技術調查。分析結果錶明,影響該裝置排放尾氣中SO2達標的直接原因為富胺液帶油、帶輕烴。進一步研究髮現,造成繫統帶油、帶輕烴的原因包括:氣液分離設備偏小、貧胺液溫度偏低、上遊加氫脫硫裝置循環油氣溫度偏高、上遊加氫裝置、富胺液再生裝置的撇油設計不閤理、胺液再生裝置富胺液閃蒸罐火炬氣排放設計流量不夠等。針對上述問題,分彆從繫統及工藝流程設計、工藝指標、操作、設備改造等多方麵提齣瞭整改措施。
침대모련유엄류광회수연합장치배방미기중SO2체표문제,분별종공예급계통설계、장치설계、설비설시、조작등다방면진행료기술조사。분석결과표명,영향해장치배방미기중SO2체표적직접원인위부알액대유、대경경。진일보연구발현,조성계통대유、대경경적원인포괄:기액분리설비편소、빈알액온도편저、상유가경탈류장치순배유기온도편고、상유가경장치、부알액재생장치적별유설계불합리、알액재생장치부알액섬증관화거기배방설계류량불구등。침대상술문제,분별종계통급공예류정설계、공예지표、조작、설비개조등다방면제출료정개조시。
A technical investigation ,including process and system design ,equipments and facili‐ties ,and operations etc .,was carried out in a refinery to find the reasons of SO 2 emission in the tail gas beyond the standard .The results showed that the direct reason was oil and light hydrocarbon car‐rying with rich amine solution .Further ,investigation and analysis indicated that a series of reasons resulted in the oil and light hydrocarbon carrying with rich amine solution .The reasons included small size of gas‐liquid separator ,lower temperature of lean amine solution ,higher temperature of recycle hydrocarbon gas in up‐stream units ,faulting design of oil skimming in amine flash drum of up‐stream units ,and insufficient design flow rate of the torch gas from rich amine flash drum .To solve the a‐bove problems ,some corresponding solutions were put forward including the design of system and process flow design ,process indexes ,operation ,and equipment modification .