发明名称 |
METHOD AND SYSTEM FOR WASHING THE INTERNALS OF A VESSEL FOR PROCESSING A HEAVY HYDROCARBON STREAM |
摘要 |
A method for washing the internals of a vessel for processing a heavy hydrocarbon stream, such as a paraffinic diluent recovery column (1) in a bitumen refining plant, comprises introducing a cleansing stream (3) comprising aromatic and/or naphthenic components into the vessel such that the cleansing stream flows along at least a substantial part of the surface of the internals of the vessel and flushes precipitated asphaltene deposits from said internals. The cleansing stream (3) may comprise an aromatic and/or naphthenic light gas oil (LGO), which is recycled from an atmospheric distillation column (2) in a bitumen refining plant. |
申请公布号 |
EA014005(B1) |
申请公布日期 |
2010.08.30 |
申请号 |
EA20080001712 |
申请日期 |
2006.01.18 |
申请人 |
SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V. |
发明人 |
KAIJA STEVEN, PAUL;LACRAMP MARC, RENE, CHARLES;PERRIN DARYL, ALBAN;POWER WILLIAM, JAMES |
分类号 |
C11D7/24;C10G75/04;C11D3/18;C11D11/00 |
主分类号 |
C11D7/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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