发明授权
- 专利标题: Processes for the separation of aromatic hydrocarbons from a hydrocarbon mixture
- 专利标题(中): 从烃混合物中分离芳烃的方法
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申请号: US563138申请日: 1990-08-03
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公开(公告)号: US5225072A公开(公告)日: 1993-07-06
- 发明人: Jose A. Vidueira
- 申请人: Jose A. Vidueira
- 申请人地址: IL Des Plaines
- 专利权人: UOP
- 当前专利权人: UOP
- 当前专利权人地址: IL Des Plaines
- 主分类号: B01D3/40
- IPC分类号: B01D3/40 ; C07C7/08 ; C10G7/08
摘要:
Processes are disclosed for the separation of aromatic hydrocarbons from feedstreams containing mixtures of aromatic and non-aromatic hydrocarbons using extractive distillation with an aromatic selective solvent in order to separate the aromatic hydrocarbons from the non-aromatic hydrocarbons. A rich solvent stream comprising the aromatic hydrocarbons and solvent is withdrawn from the extractive distillation column and passed to a steam stripping column to provide a regenerated lean solvent stream, a side-cut stream comprising the aromatic hydrocarbons and a stripper overhead stream comprising non-aromatic hydrocarbons which are passed as a reflux stream to the extractive distillation column. Various solvents are disclosed and an especially preferred solvent is sulfolane.
公开/授权文献
- US4572579A Dump apparatus 公开/授权日:1986-02-25
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