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    • 2. 发明授权
    • Integrated process for producing diisopropyl ether and an isopropyl
tertiary alkyl ether
    • 用于生产二异丙醚和异丙基叔烷基醚的一体化方法
    • US5689014A
    • 1997-11-18
    • US539577
    • 1995-10-05
    • Stanley J. FreyRobert J. SchmidtTerry L. MarkerRichard E. Marinangeli
    • Stanley J. FreyRobert J. SchmidtTerry L. MarkerRichard E. Marinangeli
    • C07C41/05C07C41/06
    • C07C41/06C07C41/09Y02P20/125
    • A highly integrated process for concurrently producing diisopropyl ether and an isopropyl tertiary alkyl ether has been developed. In a first reactor, propylene and water are reacted to form isopropyl alcohol, a portion of which is further reacted to form diisopropyl ether. After removing unreacted propylene, the effluent of the first reactor is separated into an ether rich stream, a water rich stream and an alcohol rich stream. The alcohol rich stream and isobutylene, isoamylene or a mixture thereof are reacted to form an isopropyl tertiary alkyl ether in a second reactor. The water present in the alcohol rich stream also reacts with the iso-olefin to form tertiary alcohol. The effluent from the second reactor is water washed to produce an oxygenate product stream and an aqueous alcohol recycle stream. Some tertiary alcohol is recycled to the first reactor where it is reacted with propylene to form additional isopropyl tertiary alkyl ether. The isopropyl tertiary alkyl ether and some tertiary alcohol is collected along with the diisopropyl ether in the mixed oxygenate product stream from the water wash.
    • 已经开发了用于同时生产二异丙醚和异丙基叔烷基醚的高度一体化的方法。 在第一反应器中,使丙烯和水反应形成异丙醇,其中一部分进一步反应形成二异丙醚。 在除去未反应的丙烯之后,将第一反应器的流出物分离成富醚流,富水流和富醇流。 使富含醇的物流和异丁烯,异戊烯或其混合物在第二反应器中反应形成异丙基叔烷基醚。 存在于富酒精料流中的水也与异烯烃反应形成叔醇。 将来自第二反应器的流出物进行水洗以产生含氧化合物产物流和含水酒精循环流。 一些叔醇被再循环到第一反应器中,在其中与丙烯反应形成另外的异丙基叔烷基醚。 异丙基叔烷基醚和一些叔醇与来自水洗的混合的含氧化合物产物流中的二异丙醚一起收集。
    • 3. 发明授权
    • Integrated process for producing diisopropyl ether, an isopropyl
tertiary alkyl ether and isopropyl alcohol
    • 用于生产二异丙醚,异丙基叔烷基醚和异丙醇的一体化方法
    • US5705712A
    • 1998-01-06
    • US539394
    • 1995-10-05
    • Stanley J. FreyRobert J. SchmidtTerry L. MarkerRichard E. Marinangeli
    • Stanley J. FreyRobert J. SchmidtTerry L. MarkerRichard E. Marinangeli
    • C07C41/05C07C41/06C07C41/00
    • C07C41/06C07C41/09Y02P20/125
    • A highly integrated process for concurrently producing diisopropyl ether and an isopropyl tertiary alkyl ether has been developed. Optionally, high purity isopropyl alcohol may also be collected as a product. In a first reactor, propylene and water are reacted to form isopropyl alcohol, a portion of which is further reacted to form diisopropyl ether. After removing unreacted propylene, the effluent of the first reactor is separated into an ether rich stream, a water rich stream and an alcohol rich stream. The alcohol rich stream is dried to provide dry isopropyl alcohol. A portion of the dry isopropyl alcohol may be removed and collected as a product. A portion of the dry isopropyl alcohol and isobutylene, isoamylene or a mixture thereof are reacted to form an isopropyl tertiary alkyl ether in a second reactor. Unreacted iso-olefins and inert compounds are then removed from the second reactor effluent. A mixture of the effluent from the second reactor and the ether rich and the water rich streams separated from the first reactor are water washed to produce a mixed ethers product stream and an aqueous isopropyl alcohol recycle stream. The isopropyl tertiary alkyl ether is collected along with the diisopropyl ether in the mixed ethers product stream from the water wash. A modified flowscheme of the process is also discussed.
    • 已经开发了用于同时生产二异丙醚和异丙基叔烷基醚的高度一体化的方法。 任选地,也可以收集高纯度异丙醇作为产物。 在第一反应器中,使丙烯和水反应形成异丙醇,其中一部分进一步反应形成二异丙醚。 在除去未反应的丙烯之后,将第一反应器的流出物分离成富醚流,富水流和富醇流。 将富醇流干燥以提供干燥的异丙醇。 干燥的异丙醇的一部分可以作为产品被去除和收集。 一部分干异丙醇和异丁烯,异戊烯或其混合物在第二反应器中反应形成异丙基叔烷基醚。 然后从第二反应器流出物中除去未反应的异烯烃和惰性化合物。 将来自第二反应器的流出物和富含醚的混合物和从第一反应器分离的富水物流的混合物进行水洗以产生混合醚产物流和异丙醇水反应物水。 异丙基叔烷基醚与来自水洗的混合醚产物流中的二异丙醚一起收集。 还讨论了该过程的修改流程。
    • 10. 发明授权
    • Process for separating para-xylene from a mixture of C8 and C9 aromatic hydrocarbons
    • 从C8和C9芳烃的混合物中分离对二甲苯的方法
    • US08198502B2
    • 2012-06-12
    • US12719410
    • 2010-03-08
    • Leonid BreslerStanley J. Frey
    • Leonid BreslerStanley J. Frey
    • C07C7/13
    • C07C7/005C07C7/13C07C15/08
    • The invention is an adsorptive separation process for producing a para-xylene product from a feed stream comprising para-xylene, at least one other C8 aromatic, and a C9 aromatic. An adsorbent comprising X or Y zeolite and a desorbent comprising para-diethylbenzene (p-DEB) are used in an adsorptive separation zone to produce an extract stream comprising para-xylene, p-DEB, and the C9 aromatic and a raffinate stream comprising the at least one other C8 aromatic, the C9 aromatic, and p-DEB. The extract stream is separated in an extract distillation zone to produce a second desorbent stream comprising the C9 aromatic and p-DEB and the raffinate stream is separated in a raffinate distillation zone to produce a third desorbent stream comprising the C9 aromatic and p-DEB. At least a portion of at least one of the second desorbent stream and the third desorbent stream is further separated in a desorbent distillation zone to produce a stream comprising the C9 aromatic.
    • 本发明是用于从包含对二甲苯,至少一种其它C 8芳族和C 9芳族的进料流产生对二甲苯产物的吸附分离方法。 包含X或Y沸石的吸附剂和包含对二乙基苯(p-DEB)的解吸剂用于吸附分离区,以产生包含对二甲苯,p-DEB和C9芳族化合物的萃取物料流和含有 至少一种其它C 8芳族,C 9芳族和p-DEB。 萃取物流在提取蒸馏区中分离以产生包含C 9芳族和p-DEB的第二解吸流,并且萃余物流在萃余液蒸馏区中分离以产生包含C 9芳族和p-DEB的第三解吸流。 第二解吸流和第三解吸流中的至少一个的至少一部分在解吸蒸馏区进一步分离以产生包含C 9芳族的物流。