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    • 1. 发明授权
    • Process for the production of acetic acid
    • US10550059B2
    • 2020-02-04
    • US16308332
    • 2017-06-08
    • BP Chemicals Limited
    • Sean Anthony Hennigan
    • C07C51/12C07C51/44C07C53/08
    • A process for the production of acetic acid which process comprises the steps of. (a) introducing methanol and/or a reactive derivative thereof and carbon monoxide into a first reaction zone containing a liquid reaction composition comprising a carbonylation catalyst, optionally a carbonylation catalyst promoter, methyl iodide, methyl acetate, acetic acid and water, (b) withdrawing at least a portion of the liquid reaction composition from the first reaction zone; (c) passing at least a portion of the withdrawn liquid reaction composition to a second reaction zone, wherein a gas feed comprising carbon monoxide is added to the liquid reaction composition withdrawn from the first reaction zone at one or more points upstream of the second reaction zone, one or more points within the second reaction zone, or a combination of one or more points upstream of the second reaction zone and one or more points within the second reaction zone; and (d) passing at least a portion of the liquid reaction composition from the second reaction zone into a flash separation zone to form: a vapour fraction, which comprises acetic acid, methyl iodide, methyl acetate and low pressure off-gas; and, a liquid fraction, which comprises carbonylation catalyst and optional carbonylation catalyst promoter; wherein the flow rate in kg of gas feed comprising carbon monoxide which is added to the second reaction zone per tonne of liquid reaction composition being passed to the flash separation zone (kg/te), is in the range of from 0.5FG to 1.2FG, wherein FG is defined according to equation 1: (1) FG=(0.296086962×tr)+(0.369636×RR)+(0.295878701×GP0.8134)−23.3448 wherein, tr is the residence time (seconds) of the liquid reaction composition within the second reaction zone which is calculated using equation 2: (2) tr=V2/Ff wherein, V2 is the volume of the second reaction zone (m3) and Ff is the volumetric flow rate of liquid reaction composition to the flash separation zone (m3/s), RR is the reaction rate of the liquid reaction composition passed to the second reaction zone at the temperature at which it is withdrawn from the first reaction zone (mol/litre/hour), and Gp is the purity of the gas feed comprising carbon monoxide which is added to the second reaction zone expressed as the mass fraction of carbon monoxide in the gas feed.
    • 5. 发明申请
    • PROCESS
    • US20170190649A1
    • 2017-07-06
    • US15315260
    • 2015-08-04
    • Sean Anthony HENNIGANBP CHEMICALS LIMITED
    • Sean Anthony HENNIGAN
    • C07C51/44C07C51/12
    • C07C51/44C07C51/12C07C53/08C07C53/122
    • A method of operating a heavy ends column in an acetic acid production unit, said production unit comprising at least a reaction section, a light ends recovery section comprising a light ends distillation column, and a heavy ends column, wherein a stream comprising acetic acid and propionic acid obtained from the light ends recovery section is fed to the heavy ends column through a feed inlet positioned at an intermediate point in the heavy ends column, a product stream comprising essentially acetic acid is withdrawn from the heavy ends column through a sidedraw product outlet position above the feed inlet, and a product stream comprising the propionic acid is withdrawn from the heavy ends column through a heavy product outlet positioned below the feed inlet, wherein the heavy ends column is operated under conditions such that the pressure in the heavy ends column above the feed inlet is lower than the pressure of the stream comprising acetic acid and propionic acid that is fed to the heavy ends column, and wherein the head pressure of the heavy ends column is below 1.0 bara, the number of theoretical separation stages between the feed inlet and the sidedraw product outlet is at least 5, preferably at least 7, more preferably at least 10, and the pressure drop in the part of the heavy ends column between the feed inlet and the sidedraw product outlet is at most 10 mbar per theoretical separation stage.
    • 10. 发明申请
    • Process for the preparation of mono-olefins from paraffinic hydrocarbons
    • 从链烷烃制备单烯烃的方法
    • US20020143220A1
    • 2002-10-03
    • US10093725
    • 2002-03-11
    • BP Chemicals Limited
    • David Charles GriffithsBarry Martin MaundersWilliam Terence Woodfin
    • C07C001/00C07C001/04
    • C07C5/48C07C1/0485C07C29/1518C10G2/30C10G2400/20Y02P20/132Y02P30/40Y02P30/42C07C11/02C07C31/04
    • A process for the production of a mono-olefin from a feedstock comprising a paraffinic hydrocarbon which process comprises the steps of: (a) feeding the feedstock and a molecular oxygen-containing gas to an autothermal cracker wherein they are reacted by oxidative dehydrogenation to form a product comprising one, or more, mono-olefin(s) and synthesis gas, (b) separating the product from step (a) into a synthesis gas-containing stream and one, or more, olefins and recovering the one, or more, olefin(s), (c) contacting synthesis gas-containing stream separated in step (b) with either, (i) a catalyst for the conversion of synthesis gas to methanol under conditions whereby synthesis gas is converted to methanol; or (ii) a catalyst for the water gas shift reaction under conditions whereby carbon monoxide in the synthesis gas is converted by reaction with water to hydrogen and carbon dioxide and thereafter recovering hydrogen; or (iii) a catalyst for the conversion of synthesis gas to hydrocarbons under conditions whereby synthesis gas is converted to a hydrocarbon product, and thereafter recovering at least a part of the hydrocarbon product.
    • 一种从包含链烷烃的原料生产单烯烃的方法,该方法包括以下步骤:(a)将原料和含分子氧的气体进料到自热裂化器中,其中它们通过氧化脱氢反应形成 包含一种或多种单烯烃和合成气的产品,(b)将步骤(a)中的产物分离成含合成气的料流和一种或多种烯烃,并回收一种或多种 (c)将步骤(b)中分离的含有合成气的物流与(i)在合成气转化为甲醇的条件下将合成气转化为甲醇的催化剂接触;(c) 或者(ii)用于水煤气变换反应的催化剂,其中合成气中的一氧化碳通过与水反应而转化成氢气和二氧化碳,然后回收氢气; 或(iii)在将合成气转化为烃产物的条件下将合成气转化为烃的催化剂,然后回收至少一部分烃产物。