Disproportionating C.sub.2 -C.sub.6 paraffins over zeolites
    1.
    发明授权
    Disproportionating C.sub.2 -C.sub.6 paraffins over zeolites 失效
    歧化C {HD 2 {B {14 C {HD 6 {B链烷烃超过沸石

    公开(公告)号:US3953537A

    公开(公告)日:1976-04-27

    申请号:US793173

    申请日:1969-01-22

    CPC分类号: C07C6/10

    摘要: A process for disproportionating a paraffinic hydrocarbon containing 2 to 6 carbon atoms to produce paraffinic hydrocarbons containing one more and one less carbon fragment per molecule is disclosed. In the process the paraffinic hydrocarbon is contacted at about 400.degree. to 1000.degree.F. with an acidic, crystalline aluminosilicate catalyst having a pore size of about 8 to 15 A, silica to alumina mole ratio greater than 2 to 1 and at least about 0.4 equivalent per gram atom of aluminum of hydrogen or metal ion.

    摘要翻译: 公开了一种用于歧化含有2至6个碳原子的链烷烃以产生每分子含有多一个和少一个碳片段的链烷烃的方法。 在该过程中,链烷烃在约400-1000°F的条件下,与孔径约8-15A,二氧化硅与氧化铝的摩尔比大于2:1和至少约0.4的酸性结晶硅铝酸盐催化剂接触 每克原子铝中的氢或金属离子当量。

    Hydrogen production
    3.
    发明授权
    Hydrogen production 失效
    氢气生产

    公开(公告)号:US3965252A

    公开(公告)日:1976-06-22

    申请号:US508193

    申请日:1974-09-23

    摘要: A process for the production of hydrogen, including contacting a light paraffinic hydrocarbon such as ethane, propane, n-butane, iso-butane, n-pentane, iso-pentane, etc., with a catalyst comprising an active metal selected from the group consisting of a Group VIII metal, such as platinum, rhodium, ruthenium, palladium, and nickel, and a Group VIB metal, such as chromium, molybdenum and tungsten, in an amount between about 0.5 and 15% by weight of the finished catalyst and a promoter selected from the group consisting of Group I, Group II, Rare Earth, and Group IVA metals of the Periodic System and mixtures thereof, in an amount between about 1 and 15% by weight based on the finished catalyst, both deposited on an inert oxide carrier; liquefying the effluent product, as by condensation or compression; flashing the dry gas portion containing hydrogen therefrom; if desired, further purifying the hydrogen by cryogenic, adsorption and diffusion methods, etc.; separating an unsaturated portion from a saturated portion of the remaining product, as by distillation, adsorption, solvent extraction, selective polymerization, selective aromatic alkylation, selective paraffin alkylation, etc., and recycling unreacted paraffins to the contacting step. The hydrogen recovered from the flashing step is also utilized for the hydrogenation of heavy unsaturated hydrocarbon materials, such as coal liquids, by contacting the heavy liquids with the hydrogen in the presence of a hydrogenation catalyst, preferably of the same character as the hydrogen-producing catalyst, and under conditions sufficient to hydrogenate the heavy liquids.

    摘要翻译: 一种生产氢气的方法,包括将轻链烷烃如乙烷,丙烷,正丁烷,异丁烷,正戊烷,异戊烷等与包含活性金属的催化剂接触,所述活性金属选自 由Ⅷ族金属如铂,铑,钌,钯和镍组成,VIB族金属如铬,钼和钨的量为最终催化剂的约0.5-15%(重量),和 选自周期系统的I族,II族,稀土和IVA族金属的组合的助催化剂及其混合物,其量为基于最终催化剂的约1至15重量%,均沉积在 惰性氧化物载体; 通过冷凝或压缩来液化流出物; 闪烁含有氢的干燥气体部分; 如果需要,通过低温,吸附和扩散方法进一步纯化氢气等; 通过蒸馏,吸附,溶剂萃取,选择性聚合,选择性芳族烷基化,选择性烷基烷基化等将不饱和部分与剩余产物的饱和部分分离,并将未反应的链烷烃再循环到接触步骤。 从闪蒸步骤回收的氢还可用于氢化重质不饱和烃材料,如煤液,通过在氢化催化剂存在下使重质液体与氢接触,优选与产氢 催化剂和足以氢化重液体的条件下进行。