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    • 2. 发明授权
    • Process for the production of gasoline from C.sub.4 hydrocarbons
    • 从C4碳氢化合物生产汽油的方法
    • US4367356A
    • 1983-01-04
    • US272594
    • 1981-06-11
    • Dennis J. Ward
    • Dennis J. Ward
    • C07C9/16C07C2/58
    • C07C9/16Y02P20/582
    • A process for producing gasoline from a charge stream comprising a mixture of butanes and butylenes is disclosed. The quality of a product alkylate is improved by increasing the butene-2 content of an alkylation zone feed stream. A first portion of the charge stream is passed into a dimerization zone in which isobutylene is reacted with normal butylenes, with butene-1 being reacted to a greater extent than butene-2. A C.sub.8 hydrocarbon-containing product stream and a C.sub.4 stream having a higher butene-2 concentration than the charge stream are recovered from the dimerization zone. This high butene-2 content C.sub.4 stream is admixed with a second portion of the charge stream and passed into an alkylation zone wherein butylenes are reacted with isobutane to yield a second product stream containing C.sub.8 hydrocarbons.
    • 公开了一种从含有丁烷和丁烯的混合物的电荷流产生汽油的方法。 烷基化产物的质量通过提高烷基化进料流中丁烯-2的含量得到改善。 电荷流的第一部分进入二聚化区,其中异丁烯与正丁烯反应,丁烯-1比丁烯-2更大程度地反应。 从二聚化区域回收含有C8烃的产物流和具有比电荷流更高的丁烯-2浓度的C4流。 将该高丁烯-2含量的C4流与电荷流的第二部分混合,并进入烷基化区,其中丁烯与异丁烷反应,得到含有C8烃的第二产物流。
    • 8. 发明授权
    • Cumene production
    • 库梅内生产
    • US4008290A
    • 1977-02-15
    • US678005
    • 1976-04-19
    • Dennis J. Ward
    • Dennis J. Ward
    • C07C2/70C07C6/12C07C15/085C07C3/62C07C3/54
    • C07C15/085C07C2/70C07C6/126C07C2527/173Y02P20/582
    • A process to reduce utility consumption in the catalytic alkylation of benzene with propylene to form cumene. Propylene and benzene are reacted in an alkylation reaction zone, the effluent of which is divided into two portions, the first being recirculated to the inlet of the reaction zone and the second being passed into a separation zone wherein cumene product, di- and triisopropylbenzene and excess benzene are separated. A portion of the excess benzene is recycled to the inlet of the alkylation reaction zone, and a second portion is admixed with di- and triisopropylbenzene and passed into a transalkylation zone, the effluent of which is introduced into the separation zone. Utility consumption is reduced compared to prior art processes, as a result of a reduction of the portion of excess benzene separated and recycled to the alkylation reaction zone.
    • 一种降低苯与丙烯催化烷基化形成异丙苯的效用消耗的​​方法。 丙烯和苯在烷基化反应区中反应,其流出物分为两部分,第一部分被再循环到反应区的入口,第二个进入分离区,其中异丙苯产物,二异丙基苯和三异丙基苯和 过量的苯分离。 一部分过量的苯被再循环到烷基化反应区的入口,第二部分与二异丙基苯和三异丙基苯混合并进入烷基转移区,将其流出物引入分离区。 由于分离并再循环到烷基化反应区的过量苯部分减少,现有技术方法的效用降低。
    • 10. 发明授权
    • Process for conversion of propane to gasoline
    • 将丙烷转化为汽油的方法
    • US4293722A
    • 1981-10-06
    • US121353
    • 1980-02-14
    • Dennis J. WardBipin V. Vora
    • Dennis J. WardBipin V. Vora
    • C07C11/02C07C11/107C10G49/22C10L1/06C07C2/08C07C5/32
    • C10L1/06C07C11/02C07C11/107C10G2400/02Y02P20/582
    • A multi-step hydrocarbon conversion process for producing gasoline from propane is disclosed. Propane is passed into a dehydrogenation zone and the entire dehydrogenation zone effluent is then passed into a catalytic condensation zone wherein propylene is converted into C.sub.6 and C.sub.9 hydrocarbons. The condensation zone effluent, a stripper overhead stream and an absorber bottoms stream are commingled and then separated into vapor and liquid portions. The liquid is passed into the stripper, and the vapor portion is contacted with stripper bottoms liquid in an absorber. The absorber overhead stream is contacted with liquid propane in a second absorber to remove C.sub.6 hydrocarbons and is then recycled to the dehydrogenation zone. Depropanizing a portion of the stripper bottoms yields the liquid propane and a gasoline product.
    • 公开了一种用于从丙烷生产汽油的多步烃转化方法。 丙烷通入脱氢区,然后将全部脱氢区流出物送入催化冷凝区,其中丙烯转化为C6和C9烃。 冷凝区流出物,汽提器顶部物流和吸收塔底物流混合,然后分离成蒸汽和液体部分。 将液体通入汽提器中,蒸气部分与吸收器中的汽提塔底部液体接触。 吸收塔顶流与第二吸收器中的液态丙烷接触以除去C6烃,然后再循环到脱氢区。 脱胶一部分汽提塔底部产生液体丙烷和汽油产品。