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公开(公告)号：US10160701B2
公开(公告)日：2018-12-25
申请号：US14568397
申请日：2014-12-12
申请人： UOP LLC
摘要： Processes for the recovery of aromatic hydrocarbons from one or more vent gas streams associated with an aromatic complex. The vapor streams are passed to an absorption zone in which an aromatic-selective solvent absorbs the aromatics. The aromatic-selective solvent can be processed along with other solvent extraction streams within the aromatic complex. The absorption zone may be a portion of an existing vessel or column, such as an extractive distillation column or a stabilizer.
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2.发明申请公开(公告)号：US20160060189A1
公开(公告)日：2016-03-03
申请号：US14472658
申请日：2014-08-29
申请人： UOP LLC
发明人： Lawrence E. Sullivan , Emily Harrell , Feng Xu , Jason L. Noe
IPC分类号： C07C6/06
摘要： Methods and apparatus for processing hydrocarbons are provided. In one example, a method for processing hydrocarbons includes the step of providing feed stream including toluene, ethylbenzene, mixed xylenes, and C9 hydrocarbons. Ethylbenzene is present in the feed stream in an amount of at least about 20% by weight of total C8 aromatic hydrocarbons present in the feed stream. The method further includes the step of subjecting the feed stream to ethylbenzene conversion to form a benzene-containing product stream that includes benzene.
摘要翻译： 提供了处理碳氢化合物的方法和设备。 在一个实例中，用于处理烃的方法包括提供包括甲苯，乙苯，混合二甲苯和C 9烃的进料流的步骤。 乙基苯以进料流中存在的总C 8芳族烃的至少约20重量％的量存在于进料流中。 该方法还包括将进料流转化为乙苯以形成包含苯的含苯产物流的步骤。
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3.发明申请公开(公告)号：US20140216915A1
公开(公告)日：2014-08-07
申请号：US14245268
申请日：2014-04-04
申请人： UOP LLC
IPC分类号： B01D3/40
摘要： The invention is a process and apparatus for removing a contaminant from an aromatic selective solvent. A feed stream comprising an aromatic hydrocarbon and a non-aromatic hydrocarbon is contacted with the aromatic selective solvent in an extractive distillation zone to produce a raffinate stream comprising the non-aromatic hydrocarbon, and a rich solvent stream comprising the aromatic hydrocarbon and the solvent. The rich solvent stream is separated in a second distillation zone to produce an extract stream comprising the aromatic hydrocarbon, and a lean solvent stream comprising the contaminant and the aromatic selective solvent. At least a portion of the lean solvent stream is washed with a non-aromatic hydrocarbon to produce a clean solvent stream, at least a portion of which is passed to at least one of the extractive distillation zone and the second distillation zone.
摘要翻译： 本发明是用于从芳族选择性溶剂中除去污染物的方法和装置。 包含芳族烃和非芳族烃的进料流在萃取蒸馏区中与芳族选择性溶剂接触以产生包含非芳族烃的萃余液流和包含芳族烃和溶剂的富溶剂流。 富溶剂流在第二蒸馏区中分离以产生包含芳族烃的提取物流和包含污染物和芳族选择性溶剂的贫溶剂流。 至少一部分贫溶剂流用非芳族烃洗涤以产生清洁的溶剂流，其至少一部分流入萃取蒸馏区和第二蒸馏区中的至少一个。
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公开(公告)号：US09815754B2
公开(公告)日：2017-11-14
申请号：US14472658
申请日：2014-08-29
申请人： UOP LLC
发明人： Lawrence E. Sullivan , Emily Harrell , Feng Xu , Jason L. Noe
摘要： Methods and apparatus for processing hydrocarbons are provided. In one example, a method for processing hydrocarbons includes the step of providing feed stream including toluene, ethylbenzene, mixed xylenes, and C9 hydrocarbons. Ethylbenzene is present in the feed stream in an amount of at least about 20% by weight of total C8 aromatic hydrocarbons present in the feed stream. The method further includes the step of subjecting the feed stream to ethylbenzene conversion to form a benzene-containing product stream that includes benzene.
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5.发明申请公开(公告)号：US20160168056A1
公开(公告)日：2016-06-16
申请号：US14568397
申请日：2014-12-12
申请人： UOP LLC
摘要： Processes for the recovery of aromatic hydrocarbons from one or more vent gas streams associated with an aromatic complex. The vapor streams are passed to an absorption zone in which an aromatic-selective solvent absorbs the aromatics. The aromatic-selective solvent can be processed along with other solvent extraction streams within the aromatic complex. The absorption zone may be a portion of an existing vessel or column, such as an extractive distillation column or a stabilizer.
摘要翻译： 用于从与芳族复合物相关联的一个或多个排出气体流中回收芳族烃的方法。 蒸气流被传递到吸收区，其中芳族选择性溶剂吸收芳族化合物。 芳族选择性溶剂可以与芳族络合物中的其它溶剂萃取流一起加工。 吸收区可以是现有容器或塔的一部分，例如萃取蒸馏塔或稳定剂。
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