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Aliphatic gasoline component and process to prepare said gasoline component
Aliphatic gasoline component and process to prepare said gasoline component
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机译:脂肪族汽油组分和制备所述汽油组分的方法
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摘要
An aliphatic gasoline component comprising more than 90 wt % of a mixture of trimethyl substituted compounds and monomethyl substituted compounds in a weight ratio of trimethyl to monomethyl compounds of at least 0.03 and wherein the compounds may be paraffins and olefins. The invention is also directed to a process to prepare an aliphatic gasoline component by (a) contacting a Fischer-Tropsch synthesis product with a catalyst system comprising a catalyst, which catalyst comprises an acidic matrix and a large pore molecular sieve in a riser reactor at a temperature of between 450 and 650° C. at a contact time of between 1 and 10 seconds and at a catalyst to oil ratio of between 2 and 20 k.g/kg, (b) isolating from the product of step (a) a gasoline fraction and a fraction comprising iso-butane and isobutylene; (c) subjecting the iso-butane and the iso-butylene obtained in step (b) to an alkylation step to prepare a trimethyl substituted pentane, and (d) combining the gasoline fraction obtained in step (b) with the product rich in trimethyl substituted pentane as obtained in step (c).
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机译:脂族汽油组分,其包含大于90 wt%的三甲基取代的化合物和单甲基取代的化合物的混合物,其三甲基与单甲基化合物的重量比至少为0.03,并且其中所述化合物可以是链烷烃和烯烃。本发明还涉及制备脂肪族汽油组分的方法,该方法是通过(a)使费-托合成产物与包含催化剂的催化剂体系接触,该催化剂在提升管反应器中包含酸性基质和大孔分子筛。接触时间为1至10秒,催化剂与油之比为2至20 kg / kg时,温度为450至650°C,(b)从步骤(a)的产物中分离出汽油馏分和包含异丁烷和异丁烯的馏分; (c)将步骤(b)中获得的异丁烷和异丁烯进行烷基化步骤以制备三甲基取代的戊烷,和(d)将步骤(b)中获得的汽油馏分与富含三甲基的产物合并步骤(c)中获得的取代戊烷。
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