轻烯烃在h-沸石- y负载型磷酸上聚合制备高质量燃料馏分

Mohammed C. Al-Kinany, Saud A. Al-Drees, Hamid A. Al -Megren, Saeed M. Alshihri, Eyad A. Alghilan, Feras A. Al-Shehri, Abdulmohsin S. Al-Hamdan, Abdullah J. Alghamdi, Sami D. Al-Dress
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引用次数: 11

摘要

采用新型环保、清洁、长寿命负载磷酸,以SiO2/Al2O3 / h-沸石- y催化剂为催化剂,研究了异丁烯在汽油、喷气燃料和柴油中低聚生产无硫、无氮、无芳烃的高质量燃料馏分。摩尔比为60。采用酸浸渍和超声振动技术,在不同温度和常压下连续加热得到催化剂。采用BET、SEM、XRD、TDA、TGA、XPS等技术对催化剂进行了表征。低聚反应在气相中进行,使用固定床流动反应器,温度范围在50 ~ 100℃之间。在大气压力下,在空间速度(WHSV)为176h / 1的情况下,温度为°C。采用气相色谱/质谱法对燃料馏分进行鉴定,气相色谱法进行定量。结果表明,异丁烯的馏出率在97% ~ 100%之间。对C =8异构体的最大选择性约为65%,异丁烯的流速为5.0 ml/min。50度呢?得到°C。上述条件下的辛烷值为85 ~ 96,里德压力为27 ~ 125?Pa。
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High-quality fuel distillates produced from oligomerization of light olefin over supported phosphoric acid on H-Zeolite-Y

Oligomerization of isobutene to produce high-quality fuel distillates in the range of gasoline, jet fuel and diesel free of sulfur, nitrogen and aromatic hydrocarbons has been investigated over a new environmental-friendly, clean and long-lifetime supported phosphoric acid on H-Zeolite-Y catalyst with SiO2/Al2O3?mol ratio of 60. The catalyst was obtained by acid impregnation and ultrasonic vibration technique with successive heating at different temperatures and under atmospheric pressure. The catalysts were characterized by several techniques (BET, SEM, XRD, TDA, TGA and XPS). The oligomerization reactions were carried out in a gas phase using fixed-bed flow reactor at variable temperature ranges between 50 and 100?°C under atmospheric pressure with a space velocity (WHSV) of 176?h?1.The fuel distillates were identified by GC/MS and quantified by gas chromatography. The results showed that the conversion of isobutene into distillates ranges between 97 and 100%. The maximum selectivity to C =8 isomers is about 65%, and a flow rate of isobutene 5.0?ml/min. and temperature 50?°C were obtained. Research octane number under the above-mentioned conditions ranges between 85 and 96, and Reid pressure ranges between 27 and 125?Pa.

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来源期刊
Applied Petrochemical Research
Applied Petrochemical Research ENGINEERING, CHEMICAL-
自引率
0.00%
发文量
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审稿时长
13 weeks
期刊介绍: Applied Petrochemical Research is a quarterly Open Access journal supported by King Abdulaziz City for Science and Technology and all the manuscripts are single-blind peer-reviewed for scientific quality and acceptance. The article-processing charge (APC) for all authors is covered by KACST. Publication of original applied research on all aspects of the petrochemical industry focusing on new and smart technologies that allow the production of value-added end products in a cost-effective way. Topics of interest include: • Review of Petrochemical Processes • Reaction Engineering • Design • Catalysis • Pilot Plant and Production Studies • Synthesis As Applied to any of the following aspects of Petrochemical Research: -Feedstock Petrochemicals: Ethylene Production, Propylene Production, Butylene Production, Aromatics Production (Benzene, Toluene, Xylene etc...), Oxygenate Production (Methanol, Ethanol, Propanol etc…), Paraffins and Waxes. -Petrochemical Refining Processes: Cracking (Steam Cracking, Hydrocracking, Fluid Catalytic Cracking), Reforming and Aromatisation, Isomerisation Processes, Dimerization and Polymerization, Aromatic Alkylation, Oxidation Processes, Hydrogenation and Dehydrogenation. -Products: Polymers and Plastics, Lubricants, Speciality and Fine Chemicals (Adhesives, Fragrances, Flavours etc...), Fibres, Pharmaceuticals.
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