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    • 8. 发明申请
    • Method For The Production Of Propene From Propane
    • 丙烷生产丙烯的方法
    • US20080207975A1
    • 2008-08-28
    • US11722367
    • 2005-12-20
    • Sven CroneOtto MachhammerGotz-Peter Schindler
    • Sven CroneOtto MachhammerGotz-Peter Schindler
    • C07C5/00
    • C07C5/3337C07C7/04C07C11/06
    • The invention relates to a process for preparing propene from propane, comprising the steps:A) a feed gas stream a comprising propane is provided;B) the feed gas stream a comprising propane and an oxygenous gas stream are fed into a dehydrogenation zone and propane is subjected to a nonoxidative catalytic, autothermal dehydrogenation to propene to obtain a product gas stream b comprising propane, propene, methane, ethane, ethene, nitrogen, carbon monoxide, carbon dioxide, steam and hydrogen;C) product gas stream b is cooled and steam is removed by condensation to obtain a steam-depleted product gas stream c;D) uncondensable or low-boiling gas constituents are removed by contacting product gas stream c with an inert absorbent and subsequently desorbing the gases dissolved in the inert absorbent to obtain a C3 hydrocarbon stream d1 and an offgas stream d2 comprising methane, ethane, ethene, nitrogen, carbon monoxide, carbon dioxide and hydrogen;E) the C3 hydrocarbon stream d1 is cooled and compressed to obtain a liquid C3 hydrocarbon stream e1;F) the liquid C3− hydrocarbon stream e1 is fed into a first distillation zone and separated distillatively into a stream f1 composed of propane and propene and a stream f2 comprising ethane and ethene;G) stream f1 is fed into a (second) distillation zone and separated distillatively into a product stream g1 composed of propene and a stream g2 composed of propane, and stream g2 is recycled at least partly into the dehydrogenation zone.
    • 本发明涉及一种从丙烷制备丙烯的方法,包括以下步骤:A)提供包含丙烷的原料气流a; B)将包含丙烷和含氧气流的原料气流a进料到脱氢区,丙烷经受非氧化催化,自热脱氢至丙烯以获得包含丙烷,丙烯,甲烷,乙烷,乙烯的产物气流b ,氮气,一氧化碳,二氧化碳,蒸气和氢气; C)产物气流b被冷却并通过冷凝除去蒸汽,得到蒸汽消耗产物气流c; D)通过使产物气流c与惰性吸收剂接触并随后将溶解在惰性吸收剂中的气体解吸,得到C 3 N 3烃流d 1和废气,除去不可冷凝或低沸点气体成分 流d 2包含甲烷,乙烷,乙烯,氮气,一氧化碳,二氧化碳和氢气; E)将C 3 C 3烃流d 1冷却并压缩,得到液体C 3烃流e1; F)将液体C 3 - C 3 - 烃流e 1进料到第一蒸馏区并蒸馏分离成由丙烷和丙烯组成的料流f 1和包含乙烷和乙烯的料流f 2; G)流f 1进料到(第二)蒸馏区并蒸馏分离成由丙烯构成的产物流g 1和由丙烷组成的料流g 2,并且流g 2至少部分地再循环到脱氢区中。
    • 10. 发明授权
    • Method for the production of maleic anhydride
    • 马来酸酐生产方法
    • US07345167B2
    • 2008-03-18
    • US10565889
    • 2004-07-06
    • Mark DudaOtto MachhammerAlexander Weck
    • Mark DudaOtto MachhammerAlexander Weck
    • C07D307/60
    • C07C51/215C07C57/145
    • A process for preparing maleic anhydride by oxidizing n-butane in the gas phase under heterogeneous catalysis with oxygen-containing gases over a vanadium-, phosphorus- and oxygen-containing catalyst in a reactor unit at a temperature in the range from 350 to 500° C., removing the maleic anhydride formed to form a gas stream which comprises unconverted n-butane and water and recycling at least a portion of the unconverted n-butane to the reactor unit, by feeding to the reactor unit an inlet stream having an n-butane concentration of from 0.5 to 1.5% by volume and an oxygen concentration of from 5 to 21% by volume, establishing a pressure at the inlet to the reactor unit of from 0.4 to 2 MPa abs, and converting from 40 to 100% of the n-butane from the inlet stream per reactor pass.
    • 在反应器单元中的含钒,含磷和氧的催化剂中,在350〜500℃的温度范围内,用含氧气体在非均相催化下,在气相中氧化正丁烷,制备马来酸酐的方法 C.去除形成的马来酸酐以形成包含未转化的正丁烷和水的气流,并将未转化的正丁烷的至少一部分再循环到反应器单元,通过向反应器单元供给具有n - 丁烷浓度为0.5至1.5体积%,氧浓度为5至21体积%,在反应器单元入口处建立压力为0.4至2MPa abs,并将40至100% 来自每个反应器的入口流的正丁烷通过。