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    • 53. 发明申请
    • Process Of Manufacturing Para-Xylene
    • 对二甲苯制造工艺
    • US20100040517A1
    • 2010-02-18
    • US12603956
    • 2009-10-22
    • Stephen Harold BrownJohn Scott Buchanan
    • Stephen Harold BrownJohn Scott Buchanan
    • B01J10/00
    • C07C4/04C07C1/24C07C6/126C07C15/08
    • This disclosure relates to a process of manufacturing para-xylene, comprising (a) contacting a pygas feedstock and methylating agent with a catalyst under reaction conditions to produce a product having para-xylene, wherein the product has higher para-xylene content than the para-xylene content of the pygas feedstock; and (b) separating the para-xylene from the product of the step (a), wherein the catalyst comprises a molecular sieve having a Diffusion Parameter for 2,2-dimethylbutane of about 0.1-15 sec−1 when measured at a temperature of 120° C. and a 2,2-dimethylbutane pressure of 8 kPa-a and the pygas comprises from about 1 to about 65 wt % benzene and from about 5 to 35 wt % toluene.
    • 本公开涉及一种制备对二甲苯的方法,其包括(a)在反应条件下使炽热原料和甲基化剂与催化剂接触以产生具有对二甲苯的产物,其中该产物比对位二甲苯​​具有更高的对二甲苯含量 焦炭原料的二甲苯含量; 和(b)从步骤(a)的产物中分离对二甲苯,其中当在下列温度下测量时,催化剂包含具有约0.1-15秒-1的2,2-二甲基丁烷扩散参数的分子筛 120℃,并且2,2-二甲基丁烷压力为8kPa-a,焦煤包含约1至约65重量%的苯和约5至35重量%的甲苯。
    • 57. 发明申请
    • In-line process for generating comonomer
    • 产生共聚单体的在线方法
    • US20070185361A1
    • 2007-08-09
    • US11518456
    • 2006-09-08
    • John Scott BuchananTimothy D. ShafferJames R. LattnerJohn F. Walzer
    • John Scott BuchananTimothy D. ShafferJames R. LattnerJohn F. Walzer
    • C07C2/02
    • C07C2/32C07C2/36C07C2531/22C07C2531/24Y02P20/52C07C11/02
    • The present invention relates to an in-line method for generating comonomer from monomer, such as ethylene. The comonomer generated is directly transported, without isolation or storage, to a polyethylene polymerization reactor. The in-line method includes the steps of providing an in-line comonomer synthesis reactor and a downstream gas/liquid phase separator prior to the polymerization reactor; feeding ethylene monomer and a catalyst in a solvent and/or diluent to the comonomer synthesis reactor; reacting the ethylene monomer and the catalyst in solvent and/or diluent under reaction conditions to produce an effluent stream including ethylene monomer and comonomer; passing the effluent stream from the comonomer synthesis reactor to the downstream gas/liquid phase separator to separate a gas stream from a bottom stream, wherein the gas stream is a mixture of ethylene monomer and comonomer; and passing the gas stream to the polymerization reactor to provide the necessary comonomer input
    • 本发明涉及从单体如乙烯生成共聚单体的在线方法。 生成的共聚单体直接输送到聚乙烯聚合反应器中,无需隔离或储存。 在线方法包括在聚合反应器之前提供在线共聚单体合成反应器和下游气/液相分离器的步骤; 将乙烯单体和催化剂在溶剂和/或稀释剂中加入到共聚单体合成反应器中; 在反应条件下使乙烯单体和催化剂在溶剂和/或稀释剂中反应以产生包括乙烯单体和共聚单体的流出物流; 将来自共聚单体合成反应器的流出物流输送到下游气/液相分离器以从底部流分离气流,其中气流是乙烯单体和共聚单体的混合物; 并将气流送入聚合反应器以提供所需的共聚单体输入
    • 59. 发明授权
    • De-entrainment of liquid particles from gas
    • 液体颗粒从气体中夹带
    • US07137622B2
    • 2006-11-21
    • US10830168
    • 2004-04-22
    • John Scott Buchanan
    • John Scott Buchanan
    • B01F3/04B01D45/08
    • B01D45/08B01D1/305B01D3/20
    • A multi-tray distillation unit having a separator for de-entraining liquid particles which are picked up by an upwardly flowing gaseous stream which is flowing countercurrent to a descending liquid flow in the unit. The separator which is placed above the contact plate on which the gas contacts the liquid, comprises vertically spaced tiers of elongated, substantially horizontal open-topped liquid collector channels arrayed in parallel rows transversely to the flow of the gas. The liquid collector channels are vertically staggered to deflect the gas flow from a lower tier level through the gaps between the collection channels of an upper tier and around the channels so as to cause the entrained liquid particles to separate from the gaseous stream by inertia into the channels of the lower tier. The collected liquid is then returned through a liquid downcomer to a contact plate. An improved channel configuration has a rigidly-mounted, horizontally-elongated flow deflector extending downwards from an upper tier channel toward a lower tier channel, this provides gas flow deflection and increased efficiency of liquid particle de-entrainment. The flow deflector may be mounted directly on each upper tier channel. The channels may be formed from a single crimped and perforated metal sheet or the like, and adjacent formed tiers may be stacked to form a de-entrainment zone array. The lower tier channels may be formed from a single metal sheet having a channel bottom and sides, with a foraminous section extending upwardly from one side and a transverse section extending away from the lower channel, and terminating in a flow deflector adjacent to the bottom of a channel of an upper tier.
    • 一种多托盘蒸馏装置,具有用于去除夹带液体颗粒的分离器,该分离器由向上流动的气流拾取,该气流与该单元中的下降液流逆流流动。 放置在气体与液体接触的接触板上方的分离器包括垂直间隔的细长的基本上水平的开放顶部的液体收集器通道,其平行排列成横向于气体流。 液体收集器通道垂直交错,以将气流从较低层级穿过上层的收集通道之间的间隙和通道周围的间隙,以使夹带的液体颗粒通过惯性与气流分离成 下层渠道。 然后将收集的液体通过液体降液管返回到接触板。 改进的通道结构具有从上层通道向下层通道向下延伸的刚性安装的水平延伸的导流器,这提供了气体流动偏转和提高液体颗粒去夹带效率。 导流板可以直接安装在每个上层通道上。 通道可以由单个压接和穿孔的金属板等形成,并且相邻的成形层可以被堆叠以形成去夹带区域阵列。 下层通道可以由具有通道底部和侧面的单个金属板形成,具有从一侧向上延伸的多孔部分和从下部通道延伸的横向部分,并且终止于邻近底部的导流器 上层通道。