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| 1 | Y和Beta分子筛对环烷基直馏柴油加氢裂化性能的影响显示文摘分别以改性Y分子筛、H-Beta分子筛及改性YH-Beta复配分子筛为酸性组分制备载体,然后采用等体积浸渍法制备Ni-Mo型加氢裂化催化剂。通过X射线衍射、N2吸附-脱附、NH 3程序升温脱附、吡啶吸附红外光谱、H2-程序升温还原等方法对催化剂进行分析表征,结果表明:与采用改性Y分子筛、H-Beta分子筛制备的催化剂相比,采用改性YH-Beta复配分子筛制备的催化剂有较适宜的酸量和酸强度,活性金属分散均匀,催化剂的裂化和加氢功能匹配合理。以环烷基直馏柴油为原料,在较高的反应温度条件下,3种催化剂中改性复配分子筛催化剂明显抑制了二次裂化反应,在较高转化率条件下,其加氢裂化产物总液体收率最高,轻石脑油收率最低,重石脑油收率最高,重石脑油芳烃潜含量和柴油十六烷值均较高。 | 宋国良 肖寒 张景成 张尚强 张玉婷 孙彦民 南军 于海斌 | 2021 | 石油炼制与化工2021，52，1： | 6 |
| 2 | Kinetic Model of LCO Selective Hydrogenation on NiMoW/Al_(2)O_(3) Catalyst显示文摘In order to investigate the hydrofining process of LCO for producing aromatics and gasoline,the selective hydrogenation of polycyclic aromatic hydrocarbons(PAHs),a major component of light cycle oil(LCO),was studied using a NiMoW/Al_(2)O_(3)catalyst.Based on the study of the reversible hydrogenation reaction,PAHs in the selective hydrogenation process could be effectively simulated by the modeled CH and CH_(2) groups,and the hydrodesulfurization and hydrodenitrogenation kinetic models could be further established in this process.The results showed that the kinetic models developed could fit the experimental data effectively and predict the content of S,N,and aromatics in the selective hydrogenation products of LCO. | Ju Xueyan Zhang Kui Xi Yuanbing Wang Zhe Nie Hong | 2022 | China Petroleum Processing & Petrochemical Technology2022，24，3： | 2 |
| 3 | 高硫渣油加氢反应动力学模型与失活模型的耦合应用显示文摘通过研究不同工艺条件(反应温度、压力和体积空速)对高硫渣油加氢处理反应的影响,构建了高硫渣油加氢脱硫、加氢脱氮、加氢脱残炭、加氢脱金属反应的动力学模型,并与颗粒活性区迁移模型(失活模型)进行耦合,从而利用耦合模型对渣油加氢装置的升温曲线、非常规操作及产品性质进行了模拟预测。模拟结果表明:经耦合模型模拟所得各反应转化率的预测值与试验值吻合度高;在加氢催化剂的整个评价周期内,随着加氢催化剂金属沉积比例增加,各反应转化率均呈现初期快速下降、中期缓慢下降、末期快速下降的规律;模拟产品性质恒定条件下加氢脱硫、加氢脱氮和加氢脱残炭反应的升温曲线,可以得到装置推荐的升温曲线。 | 张奎 聂红 戴立顺 | 2021 | 石油学报(石油加工)2021，37，6： | 0 |
| 4 | Dechlorination of Crude Oil by Phase Transfer Catalyst via Nucleophilic Substitution Reaction显示文摘Dechlorination of crude oil is an effective way to alleviate corrosion in refinery units,and the critical process is the removal of organochlorine which can be efficiently removed through nucleophilic substitution reaction catalyzed by phase transfer.Herein,seven typical chlorinated alkanes were selected as model compounds to study the mechanism of dechlorination of crude oil by phase transfer catalyst in the nucleophilic substitution method,and a new dechlorination reagent using hexamethyl quaternary ammonium hydroxide(HMQAH)with two quaternary ammonium groups as phase transfer catalyst,ethylenediamine as nucleophile and ethanol as solvent was developed.The results show that the dechlorinating performance of the dechlorination reagent on the model compounds decreases in the following order:epichlorohydrin>1,2-dichlorobutane>1,2-dichloroethane>1,3-dichloropropane>2-chloropropane>1-chlorobutane>chloroisobutane.Meanwhile the results of the reaction kinetics show that epichlorohydrin with epoxy structure has the lowest activation energy in the process of nucleophilic substitution reaction by the phase transfer catalyst which makes it easier to be removed by the dechlorination reagent.The removal rate of epichlorohydrin can reach up to 99.4%.The optimal dechlorination reagent used ethylenediamine as nucleophile,ethanol as solvent and HMQAH as phase transfer catalyst.The dechlorinating rate of the Iranian crude oil reached 71.6%under conditions covering a reaction temperature of 95℃,a reaction time of 90 minutes,a dechlorination reagent dosage of 1000μg/g,and a phase transfer reagent/nucleophile molar ratio of 6:1.In addition,the mechanism of phase transfer in nucleophilic substitution reaction of chloroalkanes was investigated in the paper. | Gu Jin Han Xin Liu Jichang Huang Zihao Xing Biao | 2021 | China Petroleum Processing & Petrochemical Technology2021，23，4： | 0 |
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