| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to versions of a method for isomerisation of paraffins. One of versions includes following steps: dividing waste product of isomerisation into a product stream, which contains branched and straight paraffins, and vapour stabiliser stream, which contains HCl, Hand C-hydrocarbons; dividing vapour stabiliser stream on vapour of dry gas, containing HCl, Hand C-hydrocarbons, and fluid stream, which contains C- and C+ hydrocarbons; dividing vapour of dry gas into a phase enriched with C- hydrocarbons, and a stream enriched with HCl and H, in a cooling unit; activating isomerisation catalyst using at least part of stream rich in HCl and H, to obtain isomerisation catalyst, promoted with chloride, wherein at least part of stream enriched with HCl and H, is fed directly for recycling from dividing dry gas vapour for activation of isomerisation catalyst; and bringing into contact stream of paraffin of fed initial stock with catalyst , promoted with chloride in presence of hydrogen for isomerisation of paraffins.EFFECT: use of present invention enables to reduce consumption of chloride promoter and/or caustic alkali.19 cl, 1 dwg |
