公开(公告)号：US20070264186A1

公开(公告)日：2007-11-15

申请号：US11660669

申请日：2005-09-02

申请人： Ib Dybkjaer ,  Anne Jensen ,  Carsten Laursen ,  Henrik Stahl

发明人： Ib Dybkjaer ,  Anne Jensen ,  Carsten Laursen ,  Henrik Stahl

IPC分类号： C01B3/38 ,  B01J8/06 ,  C01B31/18

CPC分类号： C01B3/384 ,  B01J8/062 ,  B01J2208/00309 ,  B01J2219/00006 ,  C01B3/382 ,  C01B32/40 ,  C01B2203/0233 ,  C01B2203/0283 ,  C01B2203/0405 ,  C01B2203/043 ,  C01B2203/046 ,  C01B2203/0475 ,  C01B2203/061 ,  C01B2203/0816 ,  C01B2203/0827 ,  C01B2203/0894 ,  C01B2203/127 ,  C01B2203/1276 ,  C01B2203/141 ,  Y02P20/129

摘要： A process for production of hydrogen and/or carbon monoxide rich gas from gaseous or liquid hydrocarbon feed-stock comprising the following steps: (a) desulphurisation of the hydrocarbon feed (1), mixing the feed (1) with steam (4) produced from waste heat in the process, feeding the mixture (6, 7) to a steam reforming section (8, 9) for conversion of the hydrocarbon feed by reaction with steam to form a process gas (12) comprising a mixture of hydrogen, carbon monoxide, carbon dioxide, residual methane and excess steam, (b) cooling the process gas (12) by steam production, (c) separating hydrogen and/or carbon monoxide (21) by conducting the process gas through a hydrogen and/or carbon monoxide purification section (20), (d) adding essentially all off-gas (22) from the purification section (20) as fuel to the reforming section (8, 9) to provide heat for the reforming reaction, (e) recovering hot flue gas (32) from the reforming section and cooling the hot flue gas at least partly by steam production, (f) recovering essentially all steam produced by cooling of process gas (12) and flue gas (32) as process steam (4), wherein the reforming section comprises at least two reforming reactors (8, 9) fed in parallel with the feed mixture of hydrocarbon feedstock (6, 7) and steam (4) and fired so that fuel (25, 26) is added in parallel to burners (29, 31) in the reforming reactors (8, 9), whereas combustion air (27) is added to a first reforming reactor (8) in an amount required to ensure a suitable adiabatic flame temperature and the partly cooled flue gas (30) from the first reforming reactor is used as combustion air in the at least one subsequent reforming reactor (9) arranged in series with respect to said combustion air in an amount required to ensure a suitable adiabatic flame temperature