KR20090009850A - Method and device for putting into service a catalyst and a reactor in an olefin plant - Google Patents

Method and device for putting into service a catalyst and a reactor in an olefin plant Download PDF

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Publication number
KR20090009850A
KR20090009850A KR1020087027058A KR20087027058A KR20090009850A KR 20090009850 A KR20090009850 A KR 20090009850A KR 1020087027058 A KR1020087027058 A KR 1020087027058A KR 20087027058 A KR20087027058 A KR 20087027058A KR 20090009850 A KR20090009850 A KR 20090009850A
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South Korea
Prior art keywords
catalyst
reactor
service
plant
putting
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KR1020087027058A
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Korean (ko)
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팔크 지몬
괴츠-페터 신들러
게르마인 콘스
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바스프 에스이
린데 아게
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Publication of KR20090009850A publication Critical patent/KR20090009850A/en

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    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/32—Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by dehydrogenation with formation of free hydrogen
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00—Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/06—Halogens; Compounds thereof
    • B01J27/08—Halides
    • B01J27/10—Chlorides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/16—Reducing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
    • B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00628—Controlling the composition of the reactive mixture
    • B01J2208/00646—Means for starting up the reaction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
    • B01J2208/00008—Controlling the process
    • B01J2208/00716—Means for reactor start-up

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)

Abstract

The invention relates to a method and a device for putting into service a reactor and a catalyst, especially a catalyst and a reactor for dehydrogenating a hydrocarbon-containing charge in a plant for producing olefins. Before being put into service, the catalyst and the reactor run through a plurality of oxidation and reduction phases, thereby releasing the chloride contained in the catalyst. The released chloride is carried off into the atmosphere in a gaseous form.

Description

올레핀 플랜트에서 촉매 및 반응기의 개시를 위한 방법 및 장치{METHOD AND DEVICE FOR PUTTING INTO SERVICE A CATALYST AND A REACTOR IN AN OLEFIN PLANT}METHODS AND DEVICE FOR PUTTING INTO SERVICE A CATALYST AND A REACTOR IN AN OLEFIN PLANT}

본 발명은 촉매 및 반응기의 개시를 위한 방법 및 상기 방법을 실시하기 위한 장치에 관한 것이다.The present invention relates to a method for initiating a catalyst and a reactor and an apparatus for carrying out the method.

염기성 화학 물질 시장에서 프로필렌에 대한 수요 증가를 관찰할 수 있다. 탄화수소를 함유하는 공급물로부터 올레핀을 제조하기 위한 플랜트에서 프로판을 프로필렌으로 탈수소화하는 것은 경제적으로 가장 중요한 프로필렌 제조 방법 중 하나이다. 촉매 및 관련 반응기는 경제적으로 적합한 탈수소화에 반드시 필요하다. 새로 제조된 촉매는 염화물을 함유한다. 선행 기술에 따르면 특별한 전처리 없이 이들 촉매의 개시 동안 이러한 염화물이 방출된다. 염화물 이온은 공정수에서 플랜트, 특히 스테인레스 스틸로 제작되어 염화물에 대한 민감성이 증가된 부분의 부품들에서 부식 손상을 증가시킨다. 내부식성 재료와 관련 있는 플랜트 부품들의 제작은 어려우며 경제적으로 적합하지 않다. 또한, 촉매 제조업자가 전처리를 실시하는 것은 불가능하다.An increase in the demand for propylene can be observed in the basic chemical market. Dehydrogenation of propane to propylene in plants for the production of olefins from feeds containing hydrocarbons is one of the most economically important processes for producing propylene. Catalysts and associated reactors are essential for economically suitable dehydrogenation. The newly prepared catalyst contains chloride. According to the prior art these chlorides are released during the initiation of these catalysts without special pretreatment. Chloride ions increase corrosion damage in parts of the process water, especially those made of stainless steel, which have increased sensitivity to chlorides. Fabrication of plant parts associated with corrosion resistant materials is difficult and economically unsuitable. In addition, it is impossible for the catalyst manufacturer to carry out the pretreatment.

본 발명의 목적은, 염화물을 함유하는 공정수가 회피 또는 최소화되며 이에 따라 플랜트의 부식이 회피 또는 최소화되도록, 서두에서 언급한 유형의 방법 및 상기 방법을 실시하기 위한 장치를 구성하는 것이다. It is an object of the present invention to construct a method of the type mentioned above and an apparatus for carrying out the method so that the process water containing chloride is avoided or minimized and thus corrosion of the plant is avoided or minimized.

본 발명에 따르면, 이러한 목적은 촉매의 하나 이상의 산화 및 환원 사이클을 반응기의 충전 후 및 반응기의 개시 전에 실시하는 방법으로 달성된다. 본 발명의 근본 사상은 염화물을 공정수에 도입하여 부식을 유발함이 없이 반응기의 개시 전에 촉매 중에 존재하는 염화물을 방출하는 것이다. According to the invention, this object is achieved by a process in which at least one oxidation and reduction cycle of the catalyst is carried out after the filling of the reactor and before the start of the reactor. The basic idea of the present invention is to introduce chloride into the process water to release the chloride present in the catalyst prior to the start of the reactor without causing corrosion.

본 발명의 특히 바람직한 실시양태에서, 촉매는 탄화수소를 함유하는 공급물의 탈수소화를 위한 플랜트에서 산화 단계 및 환원 단계를 거친다. 여기서, 산화제로서 공기 및/또는 증기를 사용하고 환원제로서 기상 수소 및/또는 증기를 사용하는 것이 유리하다. 형성된 염화물을 함유하는 배출 가스는 대기 중으로 방출시키는 것이 유리하다.In a particularly preferred embodiment of the invention, the catalyst is subjected to an oxidation step and a reduction step in a plant for dehydrogenation of a feed containing hydrocarbons. Here, it is advantageous to use air and / or steam as the oxidant and gaseous hydrogen and / or steam as the reducing agent. It is advantageous to discharge the off-gas containing the chloride formed into the atmosphere.

장치에 있어서, 본 발명의 목적은 반응물(산화제 및 환원제)을 위한 하나 이상의 유입구 및 기상 반응 생성물(염화물을 함유하는 가스)을 대기 중으로 유출시키기 위한 유출구를 갖는 장치에 의하여 달성된다.In an apparatus, the object of the present invention is achieved by an apparatus having one or more inlets for reactants (oxidants and reducing agents) and an outlet for outflowing gaseous reaction products (gases containing chlorides) into the atmosphere.

본 발명은, 특히, 플랜트의 부식을 회피하고, 따라서 플랜트의 경제성 및 올레핀의 이용성을 개선시키는 것을 가능하게 한다. 촉매 및 반응기의 개시 전에 부식성 염화물의 기상 제거로 부식성 염화물을 함유하는 공정수의 형성이 회피된다.The invention makes it possible, in particular, to avoid corrosion of the plant and thus to improve the economics of the plant and the availability of olefins. The gas phase removal of corrosive chlorides prior to the start of the catalyst and reactor avoids the formation of process water containing corrosive chlorides.

전처리(복수의 산화 및 환원 사이클)한 실험실 반응기와 전처리하지 않은 실험실 반응기에서의 촉매(23.4 g)의 염화물 함량 측정:Determination of chloride content of catalyst (23.4 g) in pre-treated (multiple oxidation and reduction cycles) and in non-pretreated laboratory reactors:

새로운 촉매: 전체 중량의 0.23%New catalyst: 0.23% of total weight

전처리 후 촉매: 전체 중량의 0.014%Catalyst after pretreatment: 0.014% of total weight

전처리 후 가동 사이클Post-Treatment Run Cycle

(탈수소화/재생)을 위한 촉매: 전체 중량의 0.017%Catalyst for (dehydrogenation / regeneration): 0.017% of total weight

Claims (7)

촉매 및 반응기의 개시 방법으로서, 반응기의 충전 후 및 반응기의 개시 전에 촉매의 하나 이상의 산화 및 환원 사이클을 실시하는 것을 특징으로 하는 방법.A method of initiating a catalyst and a reactor, characterized in that one or more oxidation and reduction cycles of the catalyst are carried out after charging of the reactor and before initiation of the reactor. 제1항에 있어서, 개시 후, 올레핀 제조를 위한 플랜트에서 탄화수소를 함유하는 공급물의 탈수소화에 촉매 및 반응기를 사용하는 것을 특징으로 하는 방법.The process according to claim 1, wherein after initiation, a catalyst and a reactor are used for dehydrogenation of the hydrocarbon-containing feed in the plant for the production of olefins. 제1항 또는 제2항에 있어서, 형성된 염화물-함유 반응 생성물을 기체 형태로 대기중으로 통과시키는 것을 특징으로 하는 방법. The process according to claim 1 or 2, characterized in that the formed chloride-containing reaction product is passed into the atmosphere in gaseous form. 제1항 내지 제3항 중 어느 한 항에 있어서, 공기 및/또는 증기를 산화제로서 사용하는 것을 특징으로 하는 방법.The process according to claim 1, wherein air and / or steam are used as oxidants. 제1항 내지 제4항 중 어느 한 항에 있어서, 기상 수소 및/증기를 환원제로서 사용하는 것을 특징으로 하는 방법.The method according to any one of claims 1 to 4, characterized in that gaseous hydrogen and / or steam are used as reducing agents. 촉매 및 반응기의 개시 장치로서, 산화제 및 환원제를 위한 하나 이상의 유입구를 구비하는 것을 특징으로 하는 장치.Initiator of catalysts and reactors, characterized in that it comprises one or more inlets for oxidizing and reducing agents. 제6항에 있어서, 대기로의 기상 반응 생성물을 위한 하나 이상의 유출구를 구비하는 것을 특징으로 하는 장치.7. The device of claim 6, having one or more outlets for gaseous reaction products to the atmosphere.
KR1020087027058A 2006-04-18 2007-04-05 Method and device for putting into service a catalyst and a reactor in an olefin plant KR20090009850A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006017906A DE102006017906A1 (en) 2006-04-18 2006-04-18 Method and device for starting up a catalyst and a reactor in an olefin plant
DE102006017906.4 2006-04-18

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KR20090009850A true KR20090009850A (en) 2009-01-23

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EP (1) EP2010320A1 (en)
KR (1) KR20090009850A (en)
CN (1) CN101426580A (en)
DE (1) DE102006017906A1 (en)
RU (1) RU2008145107A (en)
WO (1) WO2007118806A1 (en)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE787953A (en) * 1971-08-26 1973-02-26 Franc De Comp PROCESS FOR REGULATING THE HALOGEN CONTENT OF HYDROCARBON CONVERSION CATALYSTS
US3998760A (en) * 1974-09-03 1976-12-21 Petro-Tex Chemical Corporation Modified zinc ferrite oxidative dehydrogenation catalysts
NO179131C (en) * 1993-06-14 1996-08-14 Statoil As Catalyst, process for its preparation and process for dehydrogenation of light paraffins
WO2000048971A1 (en) * 1999-02-22 2000-08-24 Symyx Technologies, Inc. Compositions comprising nickel and their use as catalyst in oxidative dehydrogenation of alkanes
ES2220581T3 (en) * 1999-12-23 2004-12-16 Bp Chemicals Limited PROCESS FOR THE PRODUCTION OF OLEFINS.

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DE102006017906A1 (en) 2007-10-25
EP2010320A1 (en) 2009-01-07
CN101426580A (en) 2009-05-06
RU2008145107A (en) 2010-05-27
WO2007118806A1 (en) 2007-10-25

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