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   非加氢工艺 在 石油天然气工业 分类中 的翻译结果: 查询用时:0.107秒
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In order to meet the demand of environmental protection,the non-hydrogenation catalyst aimed to reduce the content of olefins in FCC gasoline was studied.The small fixed stock was built to study the influence of catalyst characteristic and reaction condition on the content of olefins in FCC gasoline and the optimum technology conditions were found.The experimental results show that when γ-Al_2O_3 is used as the carrier and transitional metal is used as the active components,under the condition of reaction temperature...

In order to meet the demand of environmental protection,the non-hydrogenation catalyst aimed to reduce the content of olefins in FCC gasoline was studied.The small fixed stock was built to study the influence of catalyst characteristic and reaction condition on the content of olefins in FCC gasoline and the optimum technology conditions were found.The experimental results show that when γ-Al_2O_3 is used as the carrier and transitional metal is used as the active components,under the condition of reaction temperature at 110 ℃,pressure with 0.3 MPa and space velocity with 2.6 h~(-1),the volume fraction of benzene and aromatic hydrocarbon in catalytic gasoline are no more than 2.5% and 40% respectively,and the volume fraction of olefins is decreased from 55% to 30%,which meet the demand of new national standard.At the same time,the octane value of the obtained naphtha is 95 and the disadvantage of decreasing octane value can overcome by hydrogenation process.

为满足环保要求,针对催化裂化汽油烯烃含量较高的问题,研究了一种非加氢降烯烃催化剂。在小型固定床上,考察了催化剂性质和反应条件等对FCC汽油烯烃含量的影响,确定了降烯烃非加氢工艺的最佳工艺条件。研究结果表明,在以氧化铝为担体,过渡金属为活性组分,反应温度为110℃,反应压力为0.3 MPa,体积空速为2.6 h-1条件下,FCC汽油降烯烃反应后,苯的体积分数小于2.5%,芳烃的体积分数有所升高但小于40%,烯烃体积分数由原来的55%下降至30%(荧光法),满足国家汽油新标准要求。同时测定产品油的辛烷值(RON)为95,克服了以往加氢带来的辛烷值降低的缺点。

A macroporous zeolite catalyst for olefin-reducing of FCC naphtha was prepared using β zeolite as the carrier and transition metals as the active components. Influences of reaction temperature,reaction pressure,LHSV and catalysts regeneration on the olefin-reducing results were investigated.Olefins volumetric fraction of less than 35%,benzene volumetric fraction of less than 2.5% and aromatics volumetric fraction of less than 40% were obtained under optimum operation condition of(140 ℃),3.6 MPa and LHSV 1.5...

A macroporous zeolite catalyst for olefin-reducing of FCC naphtha was prepared using β zeolite as the carrier and transition metals as the active components. Influences of reaction temperature,reaction pressure,LHSV and catalysts regeneration on the olefin-reducing results were investigated.Olefins volumetric fraction of less than 35%,benzene volumetric fraction of less than 2.5% and aromatics volumetric fraction of less than 40% were obtained under optimum operation condition of(140 ℃),3.6 MPa and LHSV 1.5 h~(-1),after aromatization,isomerization and hydrogen transfer over the catalyst in the absence of hydrogen.Octane number of the product was slightly enhanced.

以β沸石为载体、过渡金属为活性组分的大孔径分子筛作为催化剂,在反应温度140℃、反应压力3.6 MPa、体积空速1.5 h-1条件下,经过芳构化、异构化和氢转移反应,使汽油中φ(烯烃)≤35%,φ(苯)≤2.5%,φ(芳烃)≤40%,汽油辛烷值略有提高,达到国标要求。实验结果表明,该催化剂反应条件缓和,非加氢工艺流程简单,技术经济指标先进,成本低,效益高。

 
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