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多产异构烷烃的催化裂化工艺(MIP)的工业应用 总被引:5,自引:0,他引:5
多产异构烷烃的催化裂化工艺(MIP)成功地应用在黑龙江石油化工厂的催化裂化装置上。工业试验结果表明,以大庆常压渣油为原料,采用MIP技术,可以使汽油中的烯烃含量下降20个体积百分点以上,汽油性质全面改善:总液体质量收率增加1.5~3.5个百分点;并具有很好的焦炭和干气选择性。 相似文献
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多产异构烷烃催化裂化工艺MIP的影响因素分析 总被引:1,自引:0,他引:1
以催化裂化降烯烃工艺MIP(多产异构烷烃催化裂化工艺)在中国石油化工股份有限公司安庆分公司催化裂化装置上的应用为背景,对装置在不同操作条件、催化荆和原料下的运行情况进行研究和分析,找出了MIP工艺应用中影响催化裂化汽油烯烃含量的主要因素:提升管第一、二反应区温度,催化剂性能,原料性质,第二反应区催化剂藏量和反应空速。 相似文献
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介绍了中国石化安庆分公司催化裂化装置采用MIP清洁汽油生产工艺进行技术改造的情况。装置运行结果表明,应用MIP工艺后汽油质量得到改善,汽油烯烃含量明显下降,诱导期增加,硫含量降低,辛烷值基本不变。装置生焦略有增加,总液收基本保持不变。 相似文献
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The MIP Technology and Its Commercial Application 总被引:1,自引:0,他引:1
Cheng Congli Xu Youhao 《中国炼油与石油化工》2009,(1):1-5
This article introduces the specifics of the MIP technology involving respectively the case for production of clean gasoline, the case for producing clean gasoline coupled with production of diesel and the case for producing gasoline with increased output of propylene. The performance of the MIP units that were in operation was wrapped up. Test results have shown that the MIP technology is characterized by improved product distribution as evidenced by the reduced yields of dry gas and slurry and the increas... 相似文献
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石油化工科学研究院针对MIP工艺加工中间基原料油,采用较常规REUSY沸石具有更好的重油裂化能力、汽油降烯烃性能以及具有良好焦炭选择性的可接近性改善的AIRY沸石,研制了RMI Ⅱ专用催化剂。实验室评价结果表明,RMI Ⅱ专用催化剂的重油裂化与抗碱氮中毒、汽油降烯烃、增产丙烯等性能均优于常规裂化催化剂。中试放大试验结果表明,RMI Ⅱ专用催化剂中试大样的重油反应性能很好地重复了小试催化剂的结果,并且催化剂的制备易于在国内现有FCC催化剂生产装置上直接实施生产。 相似文献
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以大庆重质原料油、中间基蜡油和中间基重质油为原料,分别用含较多ZSM-5的催化剂A、及含Y型分子筛的B和C进行MIP和FCC中型试验,考察第二反应区在MIP工艺过程中所起的作用。结果表明,MIP工艺第二反应区不仅可以大幅度地降低汽油烯烃含量、改善汽油质量,而且可以提高重油裂化能力,增加液化气产率。通过对MIP工艺第一反应区和第二反应区的裂化机理几率计算可以看出,第二反应区双分子反应占明显优势,由此可以推断出,MIP工艺第二反应区所起的作用是双分子反应造成的。 相似文献
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针对中国石化某分公司重油催化裂化装置在使用一种降烯烃重油催化裂化催化剂期间由于原料油改变所引起的重油转化能力下降和汽油烯烃含量上升的现象,从催化剂性能、原料油性质和工艺操作参数等方面分析了引起这类现象的原因,给出了优化生产操作的措施和建议。在原料油性质相当的情况下,优化部分操作参数后油浆产率降低1.75个百分点,总轻液收率提高1.34个百分点,汽油烯烃含量降低7.18个百分点,RON提高0.7个单位,MON提高0.9个单位。 相似文献
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Thermal cracking reaction is unavoidable in the FCC reactionsystem. The conversion rate during thermal cracking reac-tion will be enhanced with an increasing process severity,resulting in an increase in dry gas and coke yield in productslate and a reduction of yield and quality of liquidproducts[1]. However, during heavy oil FCC process largeroil and gas molecules can hardly enter the zeolite to com-mence catalytic cracking, and they can be broken down intodebris (or free radicals) prior t… 相似文献
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多产异构烷烃的催化裂化工艺的研究 总被引:3,自引:0,他引:3
A concept of two different reaction zones was proposed based on the FCC reaction mechanism.The concept was used to design a novel reactor with corresponding operation measures.Experiments were conducted on the newly designed pilot-plant riser reactor.In comparison with the conventional FCC at relatively equivalent conversion,the pilot-plant test results showed that the olefin content in the cracked naphtha dropped by 12.4% ,and both cintents of iso-paraffin and aromatic increased by 6%,and its MON increased by 1.3 units while maintaining the RON of the naphtha unchanged,and its sulfur content reduced by 15% with a significant extension of its induction period for Shengli VGO VR.The run test results of commercial trial were conformable with the results of pilot -plant test. 相似文献
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Abstract Based on a fixed-fluid-bed reactor and a GOR-Q catalyst, the influence of process parameters on decreasing gasoline olefin content was studied. The results show that the catalyst had an obvious effect on the decreasing gasoline olefins. A higher catalyst-to-oil ratio, lower weighted hourly space velocity, and lower reactor temperature give rise to lower gasoline olefin content. The reduction of fluid catalytic cracking (FCC) gasoline olefin content is achieved by decreasing olefins of low carbon number. Reaction temperature under 520°C and catalyst-to-oil ratio = 7.0 for a GOR-Q catalyst are advantageous for decreasing olefin content of FCC gasoline. 相似文献
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环烷基原料多产异构烷烃催化裂化技术的工业应用 总被引:1,自引:2,他引:1
中海炼化惠州炼油分公司催化裂化装置采用由石油化工科学研究院开发的MIP工艺技术加工环烷基原料油,于2009年8月12日至15日进行了工业标定,结果表明,采用MIP工艺技术后装置处理量达到了设计要求,汽油烯烃体积分数为23.6%,RON和MON分别达到94.2和82.3,总液体收率(液化气+汽油+柴油)达到87.66%,取得了较好的工业应用效果。 相似文献