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公开(公告)号:US20190390362A1
公开(公告)日:2019-12-26
申请号:US16471032
申请日:2017-12-19
申请人: TOTAL RAFFINAGE CHIMIE , INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE LYON (INSA LYON) , UNIVERSITE CLAUDE BERNARD LYON 1 , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
发明人: Christel Augustin , Sophie Cazottes , Nicolas Vaché , Philippe Steyer , Claude Duret Thual , François Dupoiron
摘要: The invention relates to a process for the treatment of a wall made of Fe—Ni—Cr metal alloy of an industrial reactor which reduces the formation of coke on the said wall when it is subjected to operational conditions favourable to coking, the metal alloy comprising, within its structure, carbides, some of which show on the surface. The process comprises a chemical surface treatment stage, during which at least a part of the carbides initially present in the alloy is dissolved by electrolytic decomposition, under conditions suitable for dissolving at least a part of these carbides, in particular chromium carbides.
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2.
公开(公告)号:US20200016724A1
公开(公告)日:2020-01-16
申请号:US16471024
申请日:2017-12-19
申请人: TOTAL RAFFINAGE CHIMIE , INSTITUT NATIONAL DES SCIENCES APPLIQUEES DE LYON (INSA LYON) , UNIVERSITE CLAUDE BERNARD LYON 1 , CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (CNRS)
发明人: Christel Augustin , Sophie Cazottes , Nicolas Vaché , Philippe Steyer , Claude Duret Thual , François Dupoiron
摘要: The invention relates to a process for the treatment of a wall made of Fe—Ni—Cr metal alloy of an industrial reactor which reduces the formation of coke on the said wall when it is subjected to operational conditions favourable to coking, the metal alloy comprising, within its structure, carbides, some of which show on the surface. The process comprises a mechanical stage of impact surface treatment, during which a surface of the wall is hammered by projection of particles under conditions suitable for obtaining covering of the carbides initially present at the surface by permanent plastic deformation of the surface, in particular of the chromium carbides.
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