Method for reducing chloride emissions from a catalyst regeneration
process
    12.
    发明授权
    Method for reducing chloride emissions from a catalyst regeneration process 失效
    从催化剂再生过程中减少氯化物排放的方法

    公开(公告)号:US5837636A

    公开(公告)日:1998-11-17

    申请号:US724652

    申请日:1996-10-03

    摘要: A method is disclosed for decreasing the emissions of chlorine-containing species from a process for contacting catalyst particles with a recycle stream containing chlorine-containing species. Prior to contacting the catalyst particles with the recycle gas, an effluent stream that contains chlorine-containing species contacts the catalyst particles at sorption conditions. The catalyst particles sorb the chlorine-containing species from the effluent stream. This method captures and returns to the process the chlorine-containing species that would be lost from the process and that would need to be replaced by the injection of make-up chlorine-containing species. This method results in a significant savings in capital and operating costs of the process. This method is adaptable to many processes for the catalytic conversion of hydrocarbons in which deactivated catalyst particles are regenerated.

    摘要翻译: 公开了一种用于使催化剂颗粒与含氯物质的再循环流接触的方法来减少含氯物质的排放的方法。 在使催化剂颗粒与循环气体接触之前,含有含氯物质的流出物流在吸附条件下与催化剂颗粒接触。 催化剂颗粒从流出物流中吸附含氯物质。 该方法捕获并返回过程中将含有的含氯物质将从该过程中丢失,并需要通过注入含氯含量物质来代替。 这种方法可以大大节省资金和运营成本。 该方法适用于催化转化烃类的许多方法,其中失活的催化剂颗粒被再生。

    Process for regenerating a catalyst for the production of aromatic
hydrocarbons or for reforming
    14.
    发明授权
    Process for regenerating a catalyst for the production of aromatic hydrocarbons or for reforming 失效
    用于再生用于生产芳烃或用于重整的催化剂的方法

    公开(公告)号:US5034117A

    公开(公告)日:1991-07-23

    申请号:US464507

    申请日:1990-01-12

    摘要: The invention concerns a regeneration process and the corresponding apparatus for regeneration of a reforming catalyst, the reforming operation being carried out in at least two reactors in series, through which the catalyst and the charge successively flow, the pressure in the first reactor through which the catalyst and the charge pass being under a pressure of between 3 and 8 bars.The regeneration process is characterized in that the exhausted catalyst successively meets a first radial moving bed combustion zone 101, a second radial moving bed combustion zone 105, an axial oxychlorination moving bed zone 107 and an axial calcination moving bed zone 116, and that in the combustion zones the catalyst is treated under a pressure substantially equal to that which obtains in said first reactor, the burning gases are discharged from the second burning zone and are passed to a washing loop after having been previously mixed with the gases withdrawn from the oxychlorination zone and the calcination zone, that in the oxychlorination zone the catalyst is treated in co-flow relationship by a mixture of a gas from the calcination zone and a gas based on a chlorinated compound, and that in the calcination zone the catalyst is treated in counter-flow relationship by at least a part of the gases from the washing loop.

    摘要翻译: 本发明涉及一种再生方法和用于再生重整催化剂的相应装置,重整操作在至少两个串联的反应器中进行,催化剂和电荷通过该反应器依次流动,第一反应器中的压力 催化剂和电荷通过在3和8巴之间的压力下。 再生方法的特征在于,排出的催化剂连续地遇到第一径向移动床燃烧区101,第二径向移动床燃烧区105,轴向氧氯化移动床区107和轴向煅烧移动床区116,并且在 燃烧区域在与所述第一反应器中获得的压力基本相同的压力下处理催化剂,燃烧气体从第二燃烧区域排出,并且在预先与从氧氯化物区域排出的气体混合之后通入洗涤回路 和煅烧区,在氧氯化区中,催化剂通过来自煅烧区的气体和基于氯化化合物的气体的混合物以共流关系处理,并且在煅烧区中,催化剂在反应器中处理 通过来自洗涤回路的至少一部分气体的流动关系。

    Method of regenerating a deactivated catalyst
    15.
    发明授权
    Method of regenerating a deactivated catalyst 失效
    再生失活催化剂的方法

    公开(公告)号:US4925819A

    公开(公告)日:1990-05-15

    申请号:US205567

    申请日:1988-06-15

    摘要: A deactivated reforming catalyst comprising a type L zeolite containing a Group VIII noble metal may be regenerated and have enhanced dispersion by a method involving contacting the catalyst with oxygen and water at elevated temperatures, contacting the catalyst at elevated temperatures with a source of chlorine such as HCl or Cl.sub.2, and preferably oxygen and water, contacting the catalyst at elevated temperatures with oxygen and optionally water, and contacting the catalyst at elevated temperatures with hydrogen and optionally water to reduce the catalyst.Preferably the noble metal is platinum.

    摘要翻译: 包含含有VIII族贵金属的L型沸石的失活重整催化剂可以再生,并且通过包括使催化剂在高温下与氧和水接触的方法得到增强的分散,使高温下的催化剂与氯源接触,例如 HCl或Cl 2,优选氧和水,使催化剂在升高的温度下与氧和任选的水接触,并将催化剂在升高的温度下与氢气和任选的水接触以还原催化剂。 贵金属优选为铂。

    Process and apparatus for hydrocarbon conversion
    17.
    发明授权
    Process and apparatus for hydrocarbon conversion 失效
    用于烃转化的方法和装置

    公开(公告)号:US4210519A

    公开(公告)日:1980-07-01

    申请号:US966995

    申请日:1978-12-06

    摘要: Continuous process for converting hydrocarbons in the presence of a granular catalyst including a metal from group VI a, VII a or VIII, deposited on a carrier, comprising passing a charge of hydrocarbons with hydrogen through a series of at least two vertical catalytic zones in which the catalyst bed moves progressively downwardly, withdrawing progressively the catalyst from the bottom of the last catalytic zone, and reintroducing the same, after regeneration, at the top of the first catalytic zone.

    摘要翻译: 在包括沉积在载体上的VIa,VIIa或VIII族金属的颗粒催化剂存在下转化烃类的连续方法,包括使氢气经由一系列至少两个垂直催化区域传送, 催化剂床逐渐向下移动,逐渐从最后一个催化区的底部排出催化剂,并在再生之后将其再次引入第一催化区的顶部。

    Simplified regeneration procedure
    19.
    发明授权
    Simplified regeneration procedure 失效
    简化再生程序

    公开(公告)号:US4046673A

    公开(公告)日:1977-09-06

    申请号:US613242

    申请日:1975-09-15

    CPC分类号: C10G35/09 B01J23/96 B01J37/24

    摘要: Supported iridium-containing hydrocarbon conversion catalysts which are at least partially deactivated due to the deposition of carbonaceous residues thereon during contact with hydrocarbons are regenerated by contacting the residue-containing catalyst, prior to contact with oxygen at elevated temperature, with a chlorine-containing reagent to increase the catalyst chlorine content to a level in the range of from about 0.7 to 2.0 wt. %, based on anhydrous, carbonaceous residue-free catalyst, and thereafter contacting the catalyst with a substantially sulfur-free gaseous mixture containing oxygen at a temperature varying from about 775.degree. to 900.degree. F. for a time sufficient to burn at least a portion of the carbonaceous residue from the catalyst while maintaining at least 0.7 wt. % chlorine on the catalyst during contact with said gaseous mixture.

    摘要翻译: 通过在与烃接触期间由于其上的碳质残渣沉积而至少部分失活的支持的含铱烃转化催化剂通过在与升高的温度下与氧接触之前使含残留物的催化剂与含氯试剂 以将催化剂氯含量增加至约0.7-2.0重量%的范围内。 %,基于无水,不含碳质的无残余物的催化剂,然后使催化剂与含氧的基本上不含硫的气体混合物在约775-900°F的温度下接触一段足以燃烧至少一部分的时间 的来自催化剂的碳质残余物,同时保持至少0.7wt。 在与所述气体混合物接触期间催化剂上的氯%。

    Six-step regeneration procedure for a cokedeactivated bimetallic platinum group-group iv a catalyst
    20.
    发明授权
    Six-step regeneration procedure for a cokedeactivated bimetallic platinum group-group iv a catalyst 失效
    合成双金属铂族四元组IV催化剂的六步再生方法

    公开(公告)号:US3773686A

    公开(公告)日:1973-11-20

    申请号:US3773686D

    申请日:1971-09-09

    发明人: HAYES J

    摘要: A deactivated hydrocarbon conversion catalyst, which is a combination of a platinum group component, a group IVA metallic component, and a halogen component with a porous carrier material and which has been deactivated by a deposition of carbonaceous materials thereon during a previous contacting with a hydrocarbon charge stock at an elevated temperature, is regenerated by the sequential steps of: (1) burning carbon therefrom at a relatively low temperature with a gas stream containing H2O and a small amount of O2, (2) treating with a gas stream containing H2O and a small amount of O2 at a relatively high temperature, (3) treating with a gas stream containing H2O and a large amount of O2 at the relatively high temperature, (4) treating with a gas stream containing halogen or a halogen-containing compound and water, (5) purging O2 and H2O from the resulting catalyst and (6) reducing with a dry hydrogen stream. Key features of the resulting method are: (1) presence of water in the gas streams used in all steps except the purging and reduction steps, (2) careful control of the inlet temperature used during each step, (3) adjustment of halogen content of the catalyst after the carbon-burning step and prior to the reduction step, (4) careful control over the composition of the gas streams used in the various steps thereof and (5) exclusion of sulfur compounds from all gas streams utilized.