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33 条记录 (耗时 0.019 秒)

    Graded-bed system for improved separations
    1.
    发明授权
    Graded-bed system for improved separations 失效
    分级床系统，用于改进分离

    公开(公告)号：US5492684A

    公开(公告)日：1996-02-20

    申请号：US335027

    申请日：1994-11-07

    申请人： J. Scott Buchanan ,  Khushrav E. Nariman

    发明人： J. Scott Buchanan ,  Khushrav E. Nariman

    IPC分类号： B01D53/50

    CPC分类号： B01D53/508

    摘要： A method and system useful for the removal of contaminants such as sulfur oxides from waste gas streams using a graded-bed system is disclosed. The graded-bed system uses beds with solid sorbents of two or more particle sizes in separate sections of the bed. In one embodiment, the solid sorbents are arranged so that the larger sorbent particles are disposed in the entrance region of the graded-bed system. In operation, a waste gas stream is passed over and through the solid sorbents so that contaminants, such as sulfur oxides and/or nitrogen oxides are adsorbed. The sorbent bed is then contacted with a reducing gas to desorb the sulfur oxides.

    摘要翻译： 公开了一种用于使用分级床系统从废气流中除去污染物如硫氧化物的方法和系统。 分级床系统在床的单独部分中使用具有两个或更多个粒度的固体吸附剂的床。 在一个实施方案中，固体吸附剂被布置成使得较大的吸附剂颗粒设置在分级床系统的入口区域中。 在操作中，废气流通过并通过固体吸附剂，使得诸如硫氧化物和/或氮氧化物之类的污染物被吸附。 然后将吸附剂床与还原气体接触以解吸硫氧化物。

    FCC regeneration process with low NO.sub.x CO boiler
    5.
    发明授权
    FCC regeneration process with low NO.sub.x CO boiler 失效
    FCC再生过程与低NOx CO锅炉

    公开(公告)号：US5372706A

    公开(公告)日：1994-12-13

    申请号：US24067

    申请日：1993-03-01

    申请人： J. Scott Buchanan ,  David L. Johnson

    发明人： J. Scott Buchanan ,  David L. Johnson

    IPC分类号： C10G11/18 ,  C10G11/00

    CPC分类号： C10G11/185

    摘要： Oxides of nitrogen (NO.sub.x) emissions from an FCC regenerator are reduced by operating the regenerator in partial CO burn mode and adding substoichiometric, or just stoichiometric air to the flue gas. Much CO and most NO.sub.x and NO.sub.x precursors are thermally converted at 2000.degree.-2900.degree. F., then the gas is cooled below about 1800.degree. F. and burning of CO completed.

    摘要翻译： 通过在部分CO燃烧模式下操作再生器并且向化学计量的或者仅仅化学计量的空气加入到烟道气中，来减少来自FCC再生器的氮（NO x）的氧化物。 大多数CO和大多数NO x和NO x前体在2000°-2900°F下热转化，然后将气体冷却至约1800°F，CO燃烧完成。

    High VI lubricant blends from slack wax
    6.
    发明授权
    High VI lubricant blends from slack wax 失效
    高VI润滑剂从松散的蜡混合

    公开(公告)号：US5208403A

    公开(公告)日：1993-05-04

    申请号：US876801

    申请日：1992-04-28

    申请人： J. Scott Buchanan ,  Margaret M. Wu

    发明人： J. Scott Buchanan ,  Margaret M. Wu

    IPC分类号： C10G57/02 ,  C10G69/12

    CPC分类号： C10G57/02 ,  C10G2400/10

    摘要： Lubricant compositions comprise blends or mixtures of low viscosity, 3-8 cS e.g. about 5 cS(100.degree. C.), HVI lube basestock with higher viscosity, 15 cS+e.g. 30+ cS(100.degree. C.) HVI PAO lube basestock produced from slack wax by thermal cracking to alpha olefins followed by Lewis acid catalyzed oligomerization of the alpha olefin mixture to lube base stock. Blending these components in appropriate proportions produces lube basestock having viscosities in the range of 8-15 cS (100.degree. C.) from which material suitable for the formulation of 10W-30 automobile engine lube can be produced. The blends are notable for exhibiting high VI values greater than that of either component of the blend.

    摘要翻译： 润滑剂组合物包括低粘度的混合物或混合物，例如3-8cS。 约5cS（100℃），具有较高粘度的HVI润滑油基础油，15cS + 30℃cS（100℃）HVI PAO润滑油基础油由松散的蜡通过热裂解生成α-烯烃，随后将路易斯酸催化低聚α-烯烃混合物润滑基础油。 以适当的比例混合这些组分可产生具有8-15cS（100℃）范围内的粘度的润滑油基础油，由此可以制备适于制备10W-30汽车发动机润滑油的材料。 共混物显示出高于混合物的任一组分的高VI值。

    Production of Aromatics from Methane
    8.
    发明申请
    Production of Aromatics from Methane 有权
    从甲烷生产芳烃

    公开(公告)号：US20080249342A1

    公开(公告)日：2008-10-09

    申请号：US12041275

    申请日：2008-03-03

    申请人： Larry L. Iaccino ,  Teng Xu ,  J. Scott Buchanan ,  Neeraj Sangar ,  Jeremy J. Patt ,  Mark A. Nierode ,  Kenneth R. Clem ,  Mobae Afeworki

    发明人： Larry L. Iaccino ,  Teng Xu ,  J. Scott Buchanan ,  Neeraj Sangar ,  Jeremy J. Patt ,  Mark A. Nierode ,  Kenneth R. Clem ,  Mobae Afeworki

    IPC分类号： C07C2/00

    CPC分类号： B01J38/10 ,  B01J23/92 ,  B01J29/405 ,  B01J29/48 ,  B01J29/90 ,  B01J37/0036 ,  C07C2/78 ,  C07C2529/48 ,  Y02P20/142 ,  Y02P20/584 ,  Y02P20/588 ,  Y10S585/943 ,  C07C15/02

    摘要： In a process for converting methane to aromatic hydrocarbons, a feed containing methane and a particulate catalytic material are supplied to a reaction zone operating under reaction conditions effective to convert at least a portion of the methane to aromatic hydrocarbons and to deposit carbonaceous material on the particulate catalytic material causing catalyst deactivation. At least a portion of the deactivated particulate catalytic material is removed from the reaction zone and is heated to a temperature of about 700° C. to about 1200° C. by direct and/or indirect contact with combustion gases produced by combustion of a supplemental fuel. The heated particulate catalytic material is then regenerated with a hydrogen-containing gas under conditions effective to convert at least a portion of the carbonaceous material thereon to methane and the regenerated catalytic particulate material is recycled back to the reaction zone.

    摘要翻译： 在将甲烷转化为芳香族烃的方法中，将含有甲烷和颗粒状催化材料的原料供给到在有效将甲烷的至少一部分转化为芳族烃并将含碳材料沉积在颗粒物上的反应条件下运行的反应区 催化材料引起催化剂失活。 将至少一部分失活的颗粒催化材料从反应区中除去，并通过与补充物的燃烧产生的燃烧气体的直接和/或间接接触将其加热至约700℃至约1200℃的温度 汽油。 然后在有效将其上的至少一部分碳质材料转化为甲烷的条件下，用含氢气体再生加热的颗粒催化材料，再生的催化颗粒材料再循环回到反应区。

    Use of membranes to separate organic liquids having different polarities
    10.
    发明授权
    Use of membranes to separate organic liquids having different polarities 失效
    使用膜分离具有不同极性的有机液体

    公开(公告)号：US06620958B2

    公开(公告)日：2003-09-16

    申请号：US09891908

    申请日：2001-06-26

    申请人： J. Scott Buchanan ,  Lawrence J. Altman ,  John W. Diehl

    发明人： J. Scott Buchanan ,  Lawrence J. Altman ,  John W. Diehl

    IPC分类号： C07C6996

    CPC分类号： B01D61/362 ,  B01D61/246 ,  B01D71/24 ,  C07B63/00 ,  C07C29/76 ,  C07C68/08 ,  Y02P20/582 ,  C07C69/96 ,  C07C31/202

    摘要： A method for separating at least one lower polarity fluid from a mixture of fluids having varying polarity, comprising contacting at least one low polarity or non-polar polymeric membrane with the mixture of fluids under conditions such that the at least one lower polarity fluid selectively permeates through the membrane, wherein the membrane is one which has a ratio of heteroatoms chemically bonded to the carbon atoms in the membrane to the number of carbon atoms of less than about 0.2, preferably less than about 0.05.

    摘要翻译： 一种用于从具有不同极性的流体混合物的混合物中分离至少一种低极性流体的方法，包括使至少一种低极性或非极性聚合物膜与流体混合物接触的条件使得至少一种低极性流体选择性渗透 通过膜，其中膜是具有与膜中碳原子化学键合的杂原子与碳原子数小于约0.2，优选小于约0.05的杂原子的膜。