介绍了中国石油化工股份有限公司洛阳分公司在常减压装置上投用先进控制系统(简称APC)的效果.该系统采用DMCplus先进控制软件,根据生产实际设计6个APC控制器,对炉效率、加热炉支路温度、常减压塔液位等进行控制.通过APC的实施,生产波动得到大幅减小,极大地降低了操作员的劳动强度;通过卡边操作,提高了常压塔拔出率以及柴油和喷气燃料的分离精度;关键控制点的标准偏差平均降低71％,最高降低97％;经济效益以2016年2月加工量计算,年增加约500万元;炉效率提高,氧体积分数降低0.27百分点.但是APC系统在应对加工量发生较大变化时调整过慢,且设备的老化弱化了APC优化效果,今后应加以改善.

介绍了液环真空泵的工作原理和洛阳石化常减压蒸馏装置液环真空泵的改造方案.通过使用对比可以发现,蒸汽喷射器+液环真空泵的组合工艺可满足减压塔的工艺要求,有效降低1.0MPa蒸汽的消耗和含硫污水量,节能效果和经济效益显著.

危险与可操作性（HAZOP）分析是国际上公认的可行的风险评估方法，尤其适用于石化系统。介绍了工艺过程危险及可操作性分析 HAZOP 的工作程序，根据 HAZOP 原理，结合中国石油化工集团公司 HSE 风险矩阵，对某公司 I 催化裂化装置进行风险评价，对辨别出的危险因素进行风险等级划分，根据提出的建议措施有针对性的进行实施，以便更准确有效的提高事故预防和控制能力。

常减压装置是炼油行业的“龙头”装置,其加工过程存在火灾、爆炸、中毒等风险.本文将HAZOP分析与中国石油化工集团HSE风险矩阵评价结合,对洛阳分公司常减压装置进行风险评价,对辨别出的危险因素进行风险等级划分,根据提出的建议措施有针对性的进行实施,以便更准确有效的提高事故预防和控制能力.

介绍了中国石油化工股份有限公司洛阳分公司1.6 Mt/a催化裂化装置的汽油生产现状,分析了原料组成、工艺条件、催化剂、汽油终馏点和蒸气压等因素对催化裂化汽油辛烷值的影响.结合闪蒸系统扩能改造,对装置提高产品辛烷值采取了调整措施,即增大掺渣比、提高反应温度和剂油比、提高汽油蒸汽压和再生催化剂定碳等.实施效果表明,汽油辛烷值达90.5以上,较优化前平均增加0.7单位,优化操作工况下月增效益约453.6×104lRMB￥,达到了提高汽油辛烷值的目标,降低了高标号汽油的调合成本,弥补下游装置的损失.

某石化企业常减压蒸馏装置用于防腐的在线检测系统,包括10套低温电感探针、6套高温电感探针和3套pH值探针.防腐监测系统则由电感探针、数据采送器、转化模块、上位机及相应软件组成.2012年10月份腐蚀损耗加重,通过对比当月的在线腐蚀监测系统监测曲线和实时原油性质数据可知,当月加工原油硫质量分数最高(1.34％),是造成腐蚀加重的主要原因,与腐蚀温控趋势吻合.根据腐蚀曲线的异常变化,采取及时调整掺炼比例和装置工艺参数等措施,可以有效减缓装置设备腐蚀,延长装置的安全运行时间.

The paper introduces the situation of saline wastewater temperature after cooled higher in the atmospheric and vacuum distillation unit electric desalting system,and analyzes the failure reason of air cooler,then determines and implements the rehabilitation programs of air cooler.At the end,the article analyzes the operating effect after putting use into the compound evaporative cooler.The compound evaporative cooler could fulfill the demand of after cooling temperature.The saline wastewater coolers E1052AB are removed,and the coolers save recycle water 180tper hour,while the compound evaporative cooler just consumes desalted water 3tper hour.

In order lo meel ihe higher requirements of environmental protection and reduce the processing losses of the process unit, the Mo. 1 unit workshop of SINOPEC Luoyang Company installed an oil removal facility for electric desalting wastewater. The compositions, working principles and process flow of oil removal facility for electric desalLing wastewater were introduced, and the operation results were analyzed. The faciliLy mainly consists of an ultrasonic oily water separator, hydrocyclone, waste oil tank and waste oil pump. The design principles are the integration of ultrasonic demulsification technology, corrugate plate oil separation technology and hydraulic cyclone separation technology to form a stable and efficient oil separation system. The operation shows that the oil removal facility has higher oil removal efficiency for the oily wastewater. The oil in the oily wastewater has been reduced from ≤800 mg/L to ≤200 mg/L after operation of oil removal facility, which has significantly reduced the oil in the sewage water from electro-sLalic desalter and lowered the treaLing capacity of downstream waste water treatment plant. On the other hand, the recovered waste oil can be reinjected into the inlet of crude oil pump to reduce the processing loss of the unit.

针对常减压装置常压塔塔顶石脑油干点超标不易控制以及常一线抽出口温度下降、收率降低的问题,通过对日常统计数据的技术分析,判断塔顶部塔盘有结盐情况.通过采取常顶回流泵P1022A入口引新鲜水入塔的方法对常压塔进行在线水洗.水洗后,常顶石脑油干点控制良好,常一线抽出口温度由178 ℃升高至192℃,常一线汽提塔液位控制较稳,收率较洗塔前提高1％,且洗塔过程未对装置正常生产产生不良影响.

This paper introduces the corrosion which mainly exists in low temperature light oil and high temperature heavy oil sections,the air preheater of furnace and furnace tube of convection chamber in the atmospheric and vacuum distillation units.It analyzes its corrosion mechanism and offers their counter-measures.

This paper introduces the corrosion which mainly exists in low temperature light oil and high temperature heavy oil sections, the air preheater of furnace and furnace tube of convection chamber in the atmospheric and vacuum distillation units. It analyzes its corrosion mechanism and offers their counter- measures.