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    Process for semi-continuous regeneration of catalyst with wash liquid in a closed system
    31.
    发明授权
    Process for semi-continuous regeneration of catalyst with wash liquid in a closed system 失效
    在封闭系统中用洗涤液连续再生催化剂的方法

    公开(公告)号：US3772211A

    公开(公告)日：1973-11-13

    申请号：US3772211D

    申请日：1971-11-26

    Applicant: CITIES SERVICE RES & DEV CO

    Inventor： MOUNCE W

    IPC: B01J8/22 ,  C10G49/12 ,  B01J11/02

    CPC classification number: B01J8/22 ,  C10G49/12

    Abstract: A PROCESS FOR THE SEMI-CONTINUOUS REGENERATION OF THE POISONED CATALYST IN A CLOSED, USUALLY HIGH PRESSURE SYSTEM. A PORTION OF THE CATALYST WHICH IS MAINTAINED IN AN EBULLATED BED IN A REACTOR, USUALLY UNDER HIGH PRESSURE, IS ALLOWED TO FLOW BY GRAVITY TO A CATALYST WASH VESSEL WHICH IS UNDER ESSENTIALLY THE SAME PRESSURE AS THE REACTOR. A WASH LIQUID IS FLOWED UPWARD THROUGH THE CATALYST IN THE WASH VESSEL TO WASH DEACTIVATING MATERIAL FROM THE CATALYST. ON COMPLETION OF CATALYST WASHING, FLOW OF THE WASH LIQUID IS INCREASED SUFFICIENTLY TO WASH AT LEAST A PORTION OF REGENERATED CATALYST BACK INTO THE REACTION. THE INVENTION FINDS PARTICULAR UTILITY IN A RESIDUAL OIL HYDROCRACKING HYDROSULFURIZATION PROCESS.

    Reactivation of deactivated zeolite catalysts
    32.
    发明授权
    Reactivation of deactivated zeolite catalysts 失效
    活性沸石催化剂的反应

    公开(公告)号：US3684738A

    公开(公告)日：1972-08-15

    申请号：US3684738D

    申请日：1970-03-16

    Applicant: MOBIL OIL CORP

    Inventor： CHEN NAI Y

    IPC: B01J20/34 ,  B01J29/90 ,  B01J11/02 ,  B01J11/30

    CPC classification number: B01J20/3408 ,  B01J29/90

    Abstract: CRYSTALLINE ALUMINOSILICATE CATALYSTS CHARACTERIZED BY A SILICA TO ALUMINA MOLE RATIO OF GREATER THAN ABOUT 6 AND A PORE SIZE RANGING FROM ABOUT 5 TO ABOUT 13 ANGSTROM UNITS LOSE THEIR ACTIVITY AFTER CONSIDERABLE USE IN HYDROCARBON CONVERSION REACTIONS AND ARE REGENERATED BY CONTACT, UNDER PARTICULARLY DEFINED CONDITIONS, WITH A SOURCE OF HYDROGEN IONS OR HYDROGEN ION PRECURSORS.

    Regeneration of unsupported vanadium sulfide catalyst
    35.
    发明授权
    Regeneration of unsupported vanadium sulfide catalyst 失效
    不加反应的硫酸锌催化剂的再生

    公开(公告)号：US3645912A

    公开(公告)日：1972-02-29

    申请号：US3645912D

    申请日：1970-02-02

    Applicant: UNIVERSAL OIL PROD CO

    Inventor： GATSIS JOHN G

    IPC: B01J27/04 ,  C10G45/16 ,  B01J11/76 ,  B01J11/02

    CPC classification number: C10G45/16 ,  B01J27/04

    Abstract: A CARBONIZED, UNSUPPORTED VANADIUM SULFIDE CATALYST IS REGENERATED WITH HYDROGEN SULFIDE OR ELEMENTAL SULFUR BY WAY OF A TWO-STAGE TREATMENT AT ELEVATED TEMPERATURES. THE FIRST STAGE IS EFFECTED AT TEMPERATURES ABOVE ABOUT 500*C., WHEREBY CARBON DISULFIDE IS FORMED, AND THE SECOND STAGE IS EFFECTED AT TEMPERATURES BELOW ABOUT 500* C., WHEREBY VANADIUM TETRASULFIDE IS FORMED. IN A PREFERRED METHOD, THE CARBONIZED CATALYST AND ELEMENTAL SULFUR ARE CONTACTED AND HEATED IN A HYDROGEN SULFIDE ATMOSPHERE. FURTHER, CARBON DISULFIDE MAY BE USED AT THE LOWER TEMPERATURE TO FORM THE VANADIUM TETRASULFIDE.

    Methane for regenerating activated carbon
    36.
    发明授权
    Methane for regenerating activated carbon 失效
    用于再生活性炭的甲烷

    公开(公告)号：US3639265A

    公开(公告)日：1972-02-01

    申请号：US3639265D

    申请日：1970-03-13

    Applicant: WESTVACO CORP

    Inventor： JOHNSON HOMER R

    IPC: B01D53/52 ,  C01B17/16 ,  C01B31/08 ,  B01D15/06 ,  B01J11/02

    CPC classification number: C01B17/164 ,  B01D53/526 ,  C01B32/36 ,  Y10S502/517

    Abstract: In a process where sulfur oxides have been removed from gas streams by adsorption onto activated carbon in the form of sulfuric acid, regeneration of the sulfuric acid laden activated carbon is accomplished in two stages by first contact the carbon at a temperature below 570* F. with hydrogen sulfide to form sulfur dioxide, which is recovered, and elemental sulfur which remains adsorbed on the carbon. The carbon with elemental sulfur adsorbed thereon is then contacted in the second stage with methane or natural gas at temperatures between from 800* to 1,300* F. to form hydrogen sulfide for the first stage and carbon disulfide. The addition of water, as steam, to the second stage converts the carbon disulfide to additional amounts of hydrogen sulfide for use in the first stage.

    Abstract translation: 在通过以硫酸的形式吸附到活性炭上将硫氧化物从气流中除去的过程中，负载硫酸的活性炭的再生通过首先在低于570°F的温度下接触碳来分两步完成。 与硫化氢反应形成二氧化硫，并回收残留在碳上的元素硫。 然后在其上吸附有元素硫的碳在800至1300℃之间的温度下与甲烷或天然气接触，以形成第一阶段的硫化氢和二硫化碳。 将水作为蒸汽加入到第二阶段将二硫化碳转化成额外量的硫化氢以用于第一阶段。

    Process for brine manufacture
    38.
    发明授权
    Process for brine manufacture 失效
    猪肉制造工艺

    公开(公告)号：US3623848A

    公开(公告)日：1971-11-30

    申请号：US3623848D

    申请日：1969-10-29

    Applicant: MARY E C FISHER ,  JESSE GYGER GRIER ,  PENNWALT CORP

    Inventor： FISHER HARRY MUELLER

    IPC: C01D3/04 ,  C01D3/08 ,  B01J11/02

    CPC classification number: C01D3/04

    Abstract: A PROCESS FOR INCREASING THE CONCENTRATION OF A DEPLETED SODIUM CHLORIDE BRINE SOLUTION BY INTRODUCING SALT OF ABOUT MINUS 6 U.S. SIEVE SIZE AND CONTAINING CALCIUM SULFATE AS AN IMPURITY INTO THE TOP OF A VERTICAL SALT-BED FREE FIRST COLUMN THROUGH WHICH BRINE AT A PH OF ABOVE ABOUT 3.5 IS FLOWING UPWARDLY AT A LINEAR FLOW RATE BETWEEN ABOUT 15 AND 25 FEET PER MINUTE, THE BRINE IN THE FIRST COLUMN THEN OVERFLOWING INTO A SECOND SALT-BED FREE COLUMN WHERE THE LINEAR DOWNWARDLY FLOW RATE IS BETWEEN ABOUT 0.1 AND 3 FEET PER MINUTE, WHEREBY THE SALT PARTICLES ARE PARTIALLY DISSOLVED IN THE FIRST COLUMN UNTIL THEY ARE CARRIED OVER INTO THE SECOND COLUMN WHERE THEY FALL FREELY THROUGH THE DOWNWARDLY FLOWING BRINE SOLUTION UNTIL ESSENTIALLY COMPLETELY DISSOLVED AT A POINT ABOVE A TRAP FOR UNDISSOLVED CALCIUM SULFATE, THEREBY PRODUCING AS EFFLUENT FROM THE SECOND COLUMN A CONCENTRATED BRINE SOLUTION LOW IN CALCIUM ION CONCENTRATION.

    Regeneration of a coke-deactivated catalyst comprising a combination of platinum, rhenium, halogen and sulfur with an alumina carrier material
    39.
    发明授权
    Regeneration of a coke-deactivated catalyst comprising a combination of platinum, rhenium, halogen and sulfur with an alumina carrier material 失效
    包含铂，铑，卤素和硫酸铝与氧化铝载体材料组合的焦炭去活化催化剂的再生

    公开(公告)号：US3622520A

    公开(公告)日：1971-11-23

    申请号：US3622520D

    申请日：1969-07-23

    Applicant: UNIVERSAL OIL PROD CO

    Inventor： HAYES JOHN C

    IPC: B01J23/96 ,  B01J27/32 ,  C10G35/09 ,  C10G35/06 ,  B01J11/02

    CPC classification number: C10G35/09 ,  B01J23/96 ,  B01J27/32 ,  Y10S502/517

    Abstract: A deactivated hydrocarbon conversion catalyst, which is a combination of a platinum group component, a rhenium component, a halogen component, and a sulfur component with an alumina carrier material and which has been deactivated by deposition of carbonaceous material thereon during a previous contacting with a hydrocarbon charge stock at hydrocarbon conversion conditions, is regenerated by the sequential steps of: (1) stripping the sulfur therefrom by contacting with a first gaseous mixture comprising hydrogen, H2O, and HCl; (2) purging hydrogen from contact with the catalyst with an inert gas stream; (3) burning carbon from the resulting catalyst at a relatively low temperature with a substantially sulfur-free second gaseous mixture containing relatively small amounts of oxygen, H2O, and HCl; (4) treating the resulting catalyst with the second gaseous mixture at a relatively high temperature; (5) purging oxygen from contact with the catalyst with an inert gas stream; and (6) reducing the resulting catalyst by contacting with a substantially sulfur-free third gaseous mixture comprising hydrogen, H2O, and HCl. Key feature of the subject regeneration method involves the use of both H2O and HCl in the gaseous mixtures used in the four major steps thereof (i.e., steps (1), (3), (4), and (6)). Furthermore, in all of these steps the mole ratio of H2O to HCl in the gas streams is maintained at a value selected from the range of about 20:1 to about 100:1.

    Abstract translation: 一种失活的烃转化催化剂，其是铂族组分，铼组分，卤素组分和硫组分与多孔载体材料的组合，并且已经通过在先前与 在烃转化条件下的烃电荷原料通过以下顺序的步骤再生：（1）通过与包含氢，H 2 O和HCl的第一气体混合物接触来从其中汽提硫; （2）用惰性气流将氢气与催化剂接触; （3）在相对较低的温度和较高的压力下，使用含有相对少量氧，H 2 O和HCl的基本上无硫的第二气态混合物从所得催化剂中燃烧碳; （4）在相对高的温度和压力下用第二气体混合物处理所得催化剂; （5）用惰性气流将氧气与催化剂接触; 和（6）通过与包含氢，H 2 O和HCl的基本上无硫的第三气态混合物接触来还原所得到的催化剂。 再生方法的主要特征是在其四个主要步骤（即步骤（1），（3），（4）和（6））中使用的气态混合物中使用H 2 O和HCl。 此外，在所有这些步骤中，气流中H 2 O与HCl的摩尔比保持在选自约20:1至约100:1范围内的值。

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