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    Catalyst and process for improving the adiabatic steam-reforming of natural gas
    4.
    发明授权
    Catalyst and process for improving the adiabatic steam-reforming of natural gas 有权
    用于改善天然气绝热蒸汽重整的催化剂和方法

    公开(公告)号：US07449167B2

    公开(公告)日：2008-11-11

    申请号：US10888658

    申请日：2004-07-08

    申请人： Diwakar Garg ,  Shankar Nataraj ,  Kevin Boyle Fogash ,  James Richard O'Leary ,  William Robert Licht ,  Sanjay Mehta ,  Eugene S. Genkin

    发明人： Diwakar Garg ,  Shankar Nataraj ,  Kevin Boyle Fogash ,  James Richard O'Leary ,  William Robert Licht ,  Sanjay Mehta ,  Eugene S. Genkin

    IPC分类号： B01J8/02 ,  C01B3/26 ,  B01J23/755

    CPC分类号： C10G11/02 ,  B01J23/78 ,  B01J35/10 ,  B01J35/1009 ,  B01J35/1066 ,  B01J35/108 ,  C01B3/40 ,  C01B2203/0233 ,  C01B2203/1058 ,  C01B2203/1094 ,  Y02P20/52

    摘要： A process for adiabatically prereforming a feedstock, includes: providing an adiabatic reactor; providing a catalyst containing 1-20 wt. % nickel and 0.4-5 wt. % potassium, wherein the catalyst has an overall catalyst porosity of 25-50% with 20-80% of the overall catalyst porosity contributed by pores having pore diameters of at least 500 Å; providing the feedstock containing natural gas and steam, wherein the natural gas contains an initial concentration of higher hydrocarbons, and a ratio of steam to natural gas in the feedstock is from 1.5:1 to 5:1; preheating the feedstock to a temperature of 300-700° C. to provide a heated feedstock; providing the heated feedstock to the reactor; and producing a product containing hydrogen, carbon monoxide, carbon dioxide, unreacted methane, and steam, wherein said product contains a reduced concentration of higher hydrocarbons less than the initial concentration of higher hydrocarbons, to prereform the feedstock.

    摘要翻译： 一种用于绝热预成型原料的方法包括：提供绝热反应器; 提供含有1-20重量％ 镍和0.4-5重量％ ％的钾，其中催化剂的总催化剂孔隙率为25-50％，其中总孔催化剂孔隙率由孔径至少为500埃的孔占20-80％。 提供含有天然气和蒸汽的原料，其中天然气含有高级烃的初始浓度，原料中蒸汽与天然气的比例为1.5:1至5:1; 将原料预热至300-700℃的温度以提供加热的原料; 将加热的原料提供给反应器; 并且生产含有氢，一氧化碳，二氧化碳，未反应的甲烷和蒸汽的产物，其中所述产物含有低于高级烃的初始浓度的较低浓度的高级烃，以预先反应原料。