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

公开(公告)号：US20050284606A1

公开(公告)日：2005-12-29

申请号：US11165488

申请日：2005-06-24

申请人： Henrik Stahl

发明人： Henrik Stahl

IPC分类号： F28D7/00 ,  F28D7/06 ,  F28D7/16 ,  F28F9/22 ,  F28F21/08 ,  F25B29/00

CPC分类号： F28F21/082 ,  F28D7/06 ,  F28D7/1676 ,  F28F9/22

摘要： Heat exchange process comprising sequential cooling a first fluid by indirect heat exchange with a second fluid and comprising the following steps: introducing the first fluid sequentially into at least two concentric U-tube bundles defining at least a first heating zone and a second heating zone respectively, introducing a second fluid onto the shell side of the U-tube bundles, each heating zone partially separated from the other by a wall, the first heating zone being a colder zone and the second heating zone being a hotter zone, the tube bundle of the first colder heating zone being made of a low alloy steel and the tube bundle of the second hotter heating zone being made of a temperature and corrosion resistant alloy, withdrawing the cooled second fluid and the heated first fluid. The invention also concerns a heat exchanger for use in the above process.

摘要翻译： 热交换过程包括通过与第二流体进行间接热交换来顺序冷却第一流体，并且包括以下步骤：将第一流体顺序地引入到分别至少限定第一加热区和第二加热区的至少两个同心的U形管束中 将第二流体引入到U形管束的壳体侧，每个加热区域由壁部分地彼此隔开，第一加热区域是较冷区域，第二加热区域是较热区域，管束 第一较冷的加热区由低合金钢制成，第二加热区的管束由耐温和耐腐蚀的合金制成，抽出被冷却的第二流体和被加热的第一流体。 本发明还涉及用于上述方法的热交换器。