SKI-400H型二乙苯异构化催化剂的工艺特性研究

在小型固定床评价装置上考察了反应温度、反应压力、氢烃摩尔比及空速对SKI-400H型二乙苯异构化催化剂性能的影响,并对其工业应用过程中工艺参数的调整方案进行了研究。结果表明：在其它条件不变的情况下,随着反应温度或反应压力的提高及氢烃摩尔比或空速的降低,催化剂活性提高,选择性降低;逐步提高反应温度或逐步提高反应压力均可使催化剂活性在一定时间内保持稳定,但提高反应温度,催化剂的选择性明显降低,而提高反应压力对催化剂选择性影响较小。     

低铂脱乙基型C_8芳烃异构化催化剂的工业应用

介绍了中国石化石油化工科学研究院开发的降低贵金属Pt负载量的SKI-110乙苯脱乙基型C8芳烃异构化催化剂的工业应用情况。结果表明,降低Pt含量后,SKI-110催化剂的对二甲苯异构化率达到23.04%,单程乙苯转化率达到70.40%,单程二甲苯收率大于98%。该催化剂满足工业装置产品需求、有效降低对二甲苯生产成本,实现了联合装置操作中降低能耗的目标。     

新型C8芳烃异构化催化剂性能考察

介绍了新型C8芳烃异构化催化剂RIC-200的实验室和工业应用情况,并与SKI-400催化剂进行对比。工业应用结果表明：RIC-200催化剂的性能随工艺条件变化的趋势符合实验室规律;具有提温速度慢、反应压力升高不仅可以使乙苯转化率增加同时也可以使异构化活性增强、氢烃摩尔比低和氢耗少、C8芳烃收率稳定的特点。新型RIC-200催化剂的工艺条件适应性好。     

RIC-270型C8芳烃异构化催化剂的工业应用性能特点

介绍了中国石化石油化工科学研究院研制开发的RIC-270乙苯转化型C8芳烃异构化催化剂的特点。结合在中国石化扬子石油化工有限公司2号对二甲苯装置的工业应用情况，分析了RIC-270催化剂对该对二甲苯装置高乙苯原料的适应性。应用结果表明：RIC-270型催化剂异构化活性（对二甲苯/二甲苯质量比）达到23.3%以上，乙苯转化率达到36.5%，C8芳环损失率为1.7%。RIC-270型催化剂在高负荷、高转化率的苛刻操作条件下，平均C8芳烃损失率为2.5%，提温和提压速率低，具有高活性和选择性、良好的稳定性，产生的经济效益显著。     

C8芳烃异构化催化剂RIC-270的应用特点

新型RIC-270催化剂是由中国石化石油化工科学研究院开发的新一代二甲苯异构化催化剂,其活性、选择性和稳定性均较上一代催化剂有所提高。RIC-270催化剂于2020年1月在中国石化金陵分公司芳烃联合装置上进行工业应用,采用密相装填技术,催化剂上部采用新型RKJ-1软质导流帽罩替代折流挡板。工业应用结果表明：RIC-270催化剂初期应用的异构化活性（对二甲苯/二甲苯质量比）达到23.2%,乙苯转化率为30%,C8芳烃损失为2.4%。RIC-270初期反应温度和压力较低,具备长周期平稳运行潜力。     

RIC-200转化型二甲苯异构化催化剂的工业应用

介绍了中国石化天津分公司1#芳烃联合装置采用中国石化石油化工科学研究院开发的新型RIC-200转化型二甲苯异构化催化剂的工业应用情况。工业应用结果表明,RIC-200催化剂具有采用还原态、开工过程不需要注硫钝化、装置首次开工时间短、操作风险低等特点;将装置原来采用的SKI-400催化剂换装为RIC-200催化剂后,对二甲苯增产显著,副产物明显减少。与国内外同类催化剂相比,RIC-200催化剂的性能明显优于SKI-400催化剂,达到国外同类OPARIS PLUS催化剂的先进水平。     

C_8芳烃异构化催化剂在大型装置上的工业应用

介绍了中国石化石油化工科学研究院开发的新一代C8芳烃异构化催化剂RIC-200在中国石化扬子石化公司芳烃厂2#大型芳烃联合装置上的工业应用情况。工业应用标定结果表明,RIC-200催化剂具有活性高、选择性高和开工过程简单的特点。在重时空速4.0 h-1的条件下,RIC-200催化剂的标定结果为异构化活性23.10%、乙苯转化率32.76%、C8芳烃收率98.06%。与国内外同类催化剂相比,RIC-200催化剂具有乙苯转化能力强、C8芳烃收率高和增产对二甲苯显著的优势。     

国内外二甲苯异构化催化剂性能的比较

通过对中国石化天津分公司芳烃联合装置条件一致性的考察,对所使用的国内外二甲苯异构化催化剂的性能进行了对比。工业运转数据表明,国内的新一代乙苯转化型异构化催化剂RIC-200的活性和选择性比国内SKI-400系列催化剂均有大幅度的提高,二甲苯异构化率(即反应产物中对二甲苯在总二甲苯中的质量分数)大于23%,与国外的OPARIS PLUS催化剂性能相当;而乙苯转化率和C8烃收率分别为22.3%和97.64%,略高于OPARIS PLUS催化剂。说明RIC-200催化剂的性能已达到国际先进水平。采用RIC-200催化剂,对二甲苯产量显著增加,装置的经济效益明显提高。     

简讯

"脱乙基型异构化催化剂在大型装置中的工业应用"通过鉴定由中国石化石油化工科学研究院、中国石化上海石油化工股份有限公司(简称上海石化)共同开发的"脱乙基型异构化催化剂在大型装置中的工业应用"项目通过了由中国石油化工股份有限公司科技开发部组织的技术鉴定。开发的SKI-100乙苯脱乙基型C芳烃异构化催化剂     

新型二甲苯异构化催化剂RIC-270的工业应用

新型二甲苯异构化催化剂RIC-270是由中国石化石油化工科学研究院在RIC-200催化剂的基础上研制开发的,异构化活性、乙苯转化率和稳定性有所提高。RIC-270催化剂于2016年10月在中国石化天津分公司化工部大芳烃装置上进行工业应用,采用密相装填,催化剂上部采用新型软质密封材料RKJ-1型导流帽罩替代原不锈钢材质的折流挡板。工业标定数据表明,RIC-270催化剂在保持高异构化活性的前提下,乙苯转化能力明显提高,乙苯平衡达成率达80%以上,C_8芳烃损失仅为2.2%,说明RIC-270催化剂的性能有新的突破,密相装填和RKJ-1型导流帽罩效果良好。     

阿姆河右岸酸性气田井口冲蚀及对策

中亚土库曼斯坦阿姆河右岸气田群为高含H_2S和CO_2的碳酸盐岩气藏,单井产量高,井口设备均出现了不同程度的腐蚀。初步分析认为其原因是生产过程中仅考虑酸性介质对气井井口的化学腐蚀,而没有考虑气体流速对井口的冲蚀作用,极大地影响了气田的安全生产。为此,通过对节流阀上下游阀道、法兰面均出现明显坑状腐蚀的进一步分析,明确了化学腐蚀和气体冲蚀的交互作用是井口磨损的主要影响因素,气流冲刷腐蚀坑的化学腐蚀产物会加速冲蚀损害;进而借鉴冲蚀与腐蚀运行环境下的多相管流管道的磨损计算理论,计算了该运行环境下的冲蚀极限速度,得到了不同生产工况下节流阀的抗冲蚀流量;最后,根据气田生产情况,针对性地提出了按气井配产要求来选择采气树类型、节流阀通径及类型冲蚀的技术控制策略。此举为气田安全生产提供了工程技术保障。     

山前地区深井超深井套管防磨与减磨技术研究

针对山前地区深井超深井钻井过程中套管磨损严重的问题,在分析套管磨损机理的基础上,开展了山前地区套管防磨与减磨技术研究,基于技术研究成果及应用实践,得到如下结论:1应用Power V等垂直钻井系统控制井眼轨迹,特别是上部井段的狗腿度和井斜,可明显减小侧向力和磨损量,缩短套管磨损时间;2应综合考虑套管磨损率、磨损系数以及钻杆耐磨带本身的磨损量,优选出效果最优的耐磨带;在狗腿度严重的位置,可考虑采用一定数量的橡胶钻杆卡箍来减轻对套管的磨损;3山前地区钻井液采用CX-300减磨剂能够显著降低磨损速率,减轻套管磨损程度,但在不同钻井液体系使用之前应进行优化分析以确定最佳使用量;4在迪那204井使用高密度钻井液体系,全部采用优选的高密度重晶石粉代替铁矿粉作为加重剂,整个钻进过程中未出现钻具及套管磨损,迪那204井易损件消耗量仅为邻井迪那203井的左右,防磨减磨效果非常显著。     

Biodiesel Projects Helpful to Ease Energy Shortage

Nearly 7,000 hectares of biodiesel forest will take shape in the northern province of Hebei in 2008, part of a national campaign to fuel the fast growing economy in a green way. In no more than five years, the Pistacia chinensis Bunge, whose seeds have an oil content of up to 40 percent, will yield five tons of fruit and contribute about two tons of high-quality biological diesel oil, according to the provincial forestry administration.     

State Energy Base Proposed in Inner Mongolia

Experts recently suggested China set up a state energy base in lnner Mongolia Autonomous Region to ease its energy thirst. The survey was co-conducted by senior researchers from the National Development and Reform Commission, Development Research Center of the State Council, Chinese Academy of Sciences and the Ministry of Finance. To plan and establish strategic energy bases at state level is in line with the principle of ＂giving priority to energy saving and diversifying energy consumption with the utility of coal at the core.＂     

Influence of Shale Oil Boom in North America upon nternational Crude Price Flucturation

正Current stituation of shale oil development in the world The US The country is blessed with abundant shale oil resources and had matersed whole sets of theories and technologies needed for their exploration and development after years of practices.According to an assessment of shale oil resources in major countries and regions of the world issued by the U.S.Energy Information Agency(EIA),the US ranks the second in the world with its 6.8 billion tons of technically recoverable shale oil(shale oil in place is about 136.3 tons).About 8plays had been confirmed to have     

A Sintering-resistant Pd/C Composite Catalyst for Ethylbenzene DehydrogenationDeveloped by CAS Institute of Metals

Carbon deposition is a commonplace phenomenon occurringin the catalytic reaction process, in particular inthe system of direct dehydrogenation of ethylbenzene,because the reactant - ethylbenzene molecules on thesurface of metal oxide catalysts are prone to quickly formcarbon deposits, leading to deactivation of catalysts. Recently,the associate research fellow Mr. Liu Hongyangand the research fellow Mr. Su Dangsheng of the StateShenyang Material Science （United ） Laboratory of theInstitute of Metal Research, CAS by taking advantageof the carbon deposition process during direct dehydrogenationof ethylbenzene have ingeniously designeda Pd/C composite catalyst. This catalyst in comparisonwith the traditional commercial carbon nanotubesupported Pd catalyst shows a significantly improved performancein terms of its catalytic activity and sinteringresistantability.     

ZPEB Overseas Markets Keep Steady and Efficient Development

In recent years, Zhongyuan Petroleum Exploration Bureau （ZPEB） has made rapid development in overseas petroleum markets through its integrated reorganization. A new international business plattbrm established, aimed at becoming a highly ranked contractor with international petroleum engineering technology. ZPEB has expanded its business scope and scale, regulated the market structure,     

New Era for China-Brazil Relations

China and Brazil celebrated the 40th anniversary of establishing diplomatic relations between the two countries in July this year. Bilateral relations between China and Brazil have entered a new stage, and experts expect the already extensive cooperation between the two countries to deepen and broaden as Chinese President Xi Jinping made a state visit to Brazil in mid-July, which is his first state visit to Brazil since he assumed the office last year. The visit to China＇s largest trade partner in Latin America is at the invitation of Brazilian President Dilma Rousseff.     

Large Scale Ethylene Production Package Technology SuccessfullyDeveloped by CNPC

The CNPC Group has successfully developed a largescaleethylene production package technology with independentintellectual property rights, which has beensuccessfully applied in the 1.2 Mt/a ethylene revamp andexpansion project at the Daqing Petrochemical Complex（DPC）.     

Recent Advancements in Petroleum E & P Equipments in China

The role of equipments in oil and gas exploration and development had never been attached with so much importance as that in shale oil and gas boom in the U.S. With the help of massive hydraulic fracturing and horizontal drilling techniques, the U.S., the world＇s No. 1 oil importer even started to dream about energy self-sufficiency with its proudly high production of shale oil and gas from several major shale plays in the country. However, what behind this remarkable achievement are powerful multi-stage hydraulic fracturing machinery and smart tools for directional drilling.