Integrated catalytic cracking and olefin producing process using staged
backflow regeneration
    8.
    发明授权
    Integrated catalytic cracking and olefin producing process using staged backflow regeneration 失效
    综合催化裂化和烯烃生产过程使用分级回流再生

    公开(公告)号:US5447622A

    公开(公告)日:1995-09-05

    申请号:US154828

    申请日:1993-11-19

    CPC分类号: C10G57/00 C10G11/18

    摘要: Disclosed is a method which combines catalytic cracking and olefin production using a coked catalytic cracking catalyst as a dehydrogenation catalyst to dehydrogenate an alkane feed stream and form an olefin rich product stream. The method uses a staged backmixed regeneration system to form the dehydrogenation catalyst and to fully reactivate deactivated cracking catalyst for reuse in the cracking reaction. The catalyst preferably comprises a crystalline tetrahedral framework oxide component.

    摘要翻译: 公开了一种使用焦化催化裂化催化剂作为脱氢催化剂将催化裂化和烯烃生产组合以使烷烃进料流脱氢并形成富烯烃产物流的方法。 该方法使用分级回混再生系统形成脱氢催化剂,并在破裂反应中完全还原失活的裂化催化剂以供再利用。 催化剂优选包含结晶四面体骨架氧化物组分。

    Integrated fluid coking paraffin dehydrogenation process
    9.
    发明授权
    Integrated fluid coking paraffin dehydrogenation process 失效
    综合流体焦化石蜡脱氢工艺

    公开(公告)号:US5435905A

    公开(公告)日:1995-07-25

    申请号:US144984

    申请日:1993-10-27

    摘要: An integrated fluid coking/paraffin dehydrogenation process. The fluid coking unit is comprised of a fluid coker reactor, a heater, and a gasifier. Solids from the fluidized beds are recycled between the coking zone and the heater and between the heater and the gasifier. A separate stream of hot solids from the gasifier is passed to the scrubbing zone after first being reduced in temperature by introduction of an effective amount of diluent, such as steam. A light paraffin stream is introduced into this stream of hot solids between the point where the diluent is added and the scrubbing zone. The hot particles act to catalyze the dehydrogenation of paraffins to olefins.

    摘要翻译: 综合流体焦化/石蜡脱氢工艺。 流体焦化装置由流体焦化反应器,加热器和气化器组成。 来自流化床的固体在焦化区和加热器之间以及加热器和气化器之间循环。 在通过引入有效量的稀释剂如蒸汽首先降低温度后,来自气化器的单独的热固体物流被传送到洗涤区。 在添加稀释剂的点和洗涤区之间,将轻质石蜡流引入该热固体物流中。 热颗粒起催化链烷烃脱氢成烯烃作用。

    Process for the production of unsymmetrical tert-dialkyl ethers
    10.
    发明授权
    Process for the production of unsymmetrical tert-dialkyl ethers 失效
    用于生产不对称叔二烷基醚的方法

    公开(公告)号:US5364980A

    公开(公告)日:1994-11-15

    申请号:US816318

    申请日:1991-12-30

    IPC分类号: B01J29/04 C07C41/09 C07C43/04

    CPC分类号: B01J29/049 C07C41/09

    摘要: A method for preparing unsymmetrical dialkyl ethers and derivatives thereof. The ethers are prepared by reacting a C.sub.1 to C.sub.3 aliphatic alcohol with a tertiary alcohol in the presence of a novel catalyst comprised of a transition metal pillared interlayered clay having generally separated layers wherein the interlayer distances are substantially greater than a precursor of the same but non-separated clay and wherein the product includes multimetallic pillars comprised of a cationic polymeric complex of the formula:Al.sup.iv (Al.sub.12-x M.sub.x).sup.vi O.sub.4 (OH).sub.24.sup.a+where x is a number from 1 to 6; a depends on the selection of M and N; N is selected from Al.sup.3+, Si.sup.4+, Ga.sup.3+, Ge.sup.4+, As.sup.5+, P.sup.5+, Cr.sup.3+, Fe.sup.3+, V.sup.5+, Ru.sup.3+, Ru.sup.4+, N.sup.3+ ; and M is selected from a metal from Groups 5B, 6B, 7B and 8 of the 4th, 5th and 6th Periods of the Periodic Table of the Elements.

    摘要翻译: 一种制备不对称二烷基醚及其衍生物的方法。 醚通过在具有通常分离的层的过渡金属柱状中间层粘土的新型催化剂存在下使C 1至C 3脂族醇与叔醇反应制备,其中层间距离基本上大于相同但不相同的前体 分离的粘土,并且其中所述产品包括由以下式的阳离子聚合物复合物组成的多金属柱:Aliv(Al12-xMx)viO4(OH)24a +,其中x为1至6的数; a取决于M和N的选择; N选自Al3 +,Si4 +,Ga3 +,Ge4 +,As5 +,P5 +,Cr3 +,Fe3 +,V5 +,Ru3 +,Ru4 +,N3 +; 并且M选自元素周期表的第4,5,6和8族的5B,6B,7B和8族的金属。