共查询到19条相似文献,搜索用时 109 毫秒
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刘彦昭 《中国石油和化工标准与质量》2022,(7):179-181
石油的裂解过程依赖于加氢催化以及加氢裂化.加氢催化技术的应用提高轻质油的质量,从而满足市场的实际需求,在保证我国石油工业经济效益的情况下,还具有保护环境、减少污染的效果,从而实现了绿色的社会发展要求,也严格落实了绿水青山就是金山银山的可持续发展理念.加氢裂化技术则可将高硫蜡油等劣质油转变为优质石脑油、柴油以及喷气燃料,... 相似文献
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加氢裂化技术因原料和产品方案灵活性大,产品质量好,尤其是能提供优质的石脑油、航煤、柴油、蒸汽裂解原料和润滑油基础料等,已成为现代炼油和石油化工工业必不可少的加工工艺。我国现有加氢裂化装置加工能力为9.86Mt/a,今后还将进一步发展。近十几年来,我国不仅自行设计、建造了一批大型加氢裂化装置,同时抚顺石油化工研究院还根据需要发展了缓和加氢裂化(MHC)、中压加氢裂化(MPHC)、中压加氢改质(MHUG)和润滑油加氢处理等新工艺,并开发生产出系列配套的加氢处理、加氢裂化催化剂,满足了我国石化工业发展的需要。 相似文献
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加氢裂化工艺能将高硫蜡油等劣质原料直接转化为优质的石脑油、喷气燃料、柴油等,是当前炼化企业油品质量升级、生产优质化工原料的核心工艺。近年来加氢裂化技术得到了快速发展,而催化剂的开发则是加氢裂化技术进步的核心。基于此,本文主要对石油炼制中的加氢催化剂和技术进行了简要的分析,希望可以为相关工作人员提供一定的参考。 相似文献
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中国炼油产能过剩,而以轻芳烃为代表的化工产品消费量持续增长,调整产品结构是当前炼油企业面临的重大问题。目前,炼油企业主要以催化重整工艺生产轻芳烃。介绍了以催化重整工艺生产轻芳烃对原料性质的要求,全面详细地综述了直馏石脑油、加氢裂化石脑油、催化裂化汽油、焦化石脑油、乙烯裂解抽余油、S-zorb汽油、3种煤基石脑油的组成和性质特点,以及将其作为重整原料所需要的加工工艺。未来,催化重整装置的原料将呈现多元化趋势,依据上述几种原料的性质特点,给出相应原料的预处理建议,为炼油企业拓展催化重整工艺生产轻芳烃原料的发展提供参考。 相似文献
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乌石化炼油厂加氢裂化装置主要产品是柴油、重石脑油,副产品是轻石脑油、液化气、干气、低分气,轻石脑油属于加氢裂化副产品。本文就降低轻石脑油收率在加氢裂化装置中的应用进行分析和探讨,为进一步提高产品收益最大化提供一定的生产依据。 相似文献
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Conversion of polyolefins (HDPE, LDPE and PP) into feedstock naphtha was investigated by hydroliquefaction process. Hydroliquefaction experiments were carried out under cold hydrogen pressure of 5 MPa at the temperatures between 375 and 450 °C in absence and presence of catalyst. Two types commercial catalysts were used, a hydrocracking catalyst (DHC-8) and a hydrogenation catalyst (HYDROBON). The effect of temperature and catalyst type on product yields and composition of gas and liquid products was investigated. The temperature was the main effect in hydroliquefaction. DHC-8 showed good cracking activity, but it gave the liquid product containing high olefin content same as thermal run. Although HYDROBON catalyst produced the sufficient amount of liquid (and naphtha fraction) at the higher temperature, it gave the liquid product with very low olefin content. The naphtha fractions obtained from polyolefins under the optimal hydrocracking conditions were analyzed by PIONA instrument to determine the hydrocarbon groups. PIONA analysis showed that the naphtha obtained from hydroliquefaction over HYDROBON catalyst could be used as a petrochemical feedstock. However, the naphtha obtained in presence of DHC-8 catalyst, which is to be used a feedstock, was needed further hydrogenation treatment. 相似文献
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回顾总结了近年来重馏分油加氢裂化技术的国内外现状和发展情况。对UOP公司的HyCycle 工艺、改进的部分转化加氢裂化工艺技术、UOP公司、Chevron公司、Akzo公司、Criterion公司、托普索公司以及抚顺石油化工研究院近年推出的加氢裂化催化剂技术现状作了介绍。 相似文献
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近年来随着消费柴汽比的逐年降低,柴油的加工转化备受关注,通过采用拟薄水铝石和分子筛作为催化剂载体,利用等体积浸渍法制备Ni-W加氢裂化催化剂,以劣质、重质柴油为原料,在100 m L加氢评价装置上进行反应活性评价,考察反应温度、反应压力和氢油体积比对催化剂加氢裂化活性的影响。结果表明,反应条件显著影响产品质量。以不同原料考察催化剂适应性,结果表明,在加工不同原料时,该催化剂具有良好的原料油适应性,可用于生产优质的重整原料以及优质柴油调和组分。 相似文献
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Chong Peng Yanze Du Xiang Feng Yongkang Hu Xiangchen Fang 《Frontiers of Chemical Science and Engineering》2018,12(4):867
Hydrocracking of petroleum feedstock represents a compelling route for the production of industrial clean fuels, which has triggered the continuous research and development of core technology related areas such as catalysts, reaction engineering and engineering design. This review particularly focuses on the research and development of catalysts and catalytic processes for hydrocracking of petroleum feedstock in China. Hydroprocessing technologies of China keep pace with the up-to-date progress of the world, and some of the technologies have achieved leading role in the world. It is noted that China Petroleum and Chemical Corporation has a full range of hydroprocessing technologies and provides corresponding “tailor-made” catalysts. Through the efforts of several generations, 20 categories of the catalysts including more than 60 brands have been developed, among which more than 40 brands have been successfully applied for more than 130 times. Importantly, the pivotal technical improvements including the deep drawing vacuum gas-oil (VGO) and de-asphalting oil hydrocracking technology to improve material adaptability, the high value-added hydrogenation technology to convert high aromatic diesel conversion to naphtha, the hydrocracking technology using VGO-catalytic diesel blends, the Fushun Research Institute of Petroleum and Petrochemicals’ diesel to gasoline and diesel hydrocracking technologies, and the Sheer hydrocracking technology to reduce energy are reviewed. 相似文献
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研究了一种最大量生产中间馏分油的新型介孔分子筛加氢裂化催化剂,200 mL一段串联加氢装置评价结果表明,在控制原料>350 ℃馏分油75%的高转化率条件下,C+5液收98.6%,加氢裂化生成油中最大量柴油馏分收率为67.36%,中油选择性79.2%,能满足工业装置最大量生产中间馏分油的需要。重石脑油芳潜收率为41.16%,尾油BMCI值5.9,是理想的重整原料和蒸汽裂解制乙烯原料。 相似文献
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The effect of temperature has been studied in hydrocracking of light cycle oil (LCO), byproduct of fluidized catalytic cracking (FCC) units on a bifunctional catalyst (Pt‐Pd/HY zeolite). The increase in both temperature and H2 partial pressure have an important attenuating effect on catalyst deactivation, given that they decrease sulfur equilibrium adsorption and enhance hydrocracking of coke precursors. Therefore, the catalyst maintains significant hydrodesulfurization and hydrocracking activity. As the temperature is increased, hydrocracking conversion and naphtha selectivity increase, although there is no significant dearomatization of the medium distillate fraction in the range of the studied experimental conditions. 400 °C is the more suitable temperature for obtaining a high yield of naphtha with a high content of i‐paraffins. 相似文献