连续重整装置原料油除氧方法探索及工艺改进

连续重整装置原料油除氧方法探索及工艺改进
罗万明;李稳宏;刘宏伟;王军峰;李铖;翁炯
【期刊名称】《化学工程》
【年(卷),期】2012(40)3
【摘要】延安石油化工厂120万t/a连续重整装置自2009年投产以来,预加氢系统出现了3次压降上升较快现象,最大时达到1.4 MPa(设计压降0.8 MPa),严重时导致装置停工.通过反复研究分析,是由于部分石脑油经长途运输含氧质量浓度偏高(7-16.8 mg/L)造成原料结焦所致.在分析清楚原因基础上,采用在预加氢进料前增加除氧系统措施,经近1年的运行结果表明:进料油中含氧质量浓度小于0.1 mg/L,系统压降稳定在0.8-1.0 MPa,装置达到了正常运行状态.%In the pre-hydrogenation system, three times of faster pressure drop rising occurred, with a maximum of 1.4 Mpa ( design pressure drop is 0. 8 Mpa) , which resulted in plant shutdown in severe condition since the continuous reforming unit of Yan'an Petrochemical Plant of 1.2 million t/a was put into operation in 2009. Through repeated research and analysis, it shows that the reason is a high oxygen mass concentration (7-16. 8 mg/L) in naphtha due to long-distance transportation results in raw material coking. Based on the clear reason analysis, the measure taken for the problem is to add a deaerator system in the pre-hydrogenation feed. The results of nearly one-year operation show that when the oxygen mass concentration of pre-hydrogenation feed oil is less than 0.1 mg/L, the system pressure drop maintains in 0.8-1.0 Mpa, and the plant can achieve the normal operation.
【总页数】4页(P75-78)
【作者】罗万明;李稳宏;刘宏伟;王军峰;李铖;翁炯
【作者单位】西北大学化工学院,陕西西安710069;陕西延长石油集团炼化公司,陕西洛川727406;西北大学化工学院,陕西西安710069;西北大学化工学院,陕西西安710069;陕西延长石油集团炼化公司,陕西洛川727406;陕西延长石油集团炼化公司,陕西洛川727406;陕西延长石油集团炼化公司,陕西洛川727406;陕西延长石油集团炼化公司,陕西洛川727406
【正文语种】中文
【中图分类】TE624
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