WO2018026313A1 - Procédé de préparation d'un catalyseur de craquage avec des éléments alcalino-terreux - Google Patents

Procédé de préparation d'un catalyseur de craquage avec des éléments alcalino-terreux Download PDF

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Publication number
WO2018026313A1
WO2018026313A1 PCT/RU2017/000564 RU2017000564W WO2018026313A1 WO 2018026313 A1 WO2018026313 A1 WO 2018026313A1 RU 2017000564 W RU2017000564 W RU 2017000564W WO 2018026313 A1 WO2018026313 A1 WO 2018026313A1
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Prior art keywords
zeolite
cations
catalyst
sodium
mass
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PCT/RU2017/000564
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English (en)
Russian (ru)
Inventor
Владимир Павлович ДОРОНИН
Татьяна Павловна СОРОКИНА
Олег Валерьевич ПОТАПЕНКО
Петр Владимирович ЛИПИН
Константин Игоревич ДМИТРИЕВ
Олег Германович БЕЛЯВСКИЙ
Александр Васильевич ПАНОВ
Наталья Владимировна КОРОТКОВА
Владимир Иванович ГОРДЕНКО
Сергей Юрьевич ГУРЬЕВСКИХ
Дмитрий Валерьевич ХРАПОВ
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Акционерное Общество "Газпромнефть-Омский Нпз" (Ао "Газпромнефть-Онпз")
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Priority to EA201900047A priority Critical patent/EA037033B1/ru
Publication of WO2018026313A1 publication Critical patent/WO2018026313A1/fr

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    • 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
    • B01J29/00—Catalysts comprising molecular sieves
    • B01J29/04—Catalysts comprising molecular sieves having base-exchange properties, e.g. crystalline zeolites
    • B01J29/06—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof
    • B01J29/08—Crystalline aluminosilicate zeolites; Isomorphous compounds thereof of the faujasite type, e.g. type X or Y
    • 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
    • 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
    • B01J37/04—Mixing
    • 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
    • B01J37/30—Ion-exchange

Definitions

  • a method of preparing a cracking catalyst with alkaline earth elements The present invention relates to the field of oil refining and petrochemical industries, and in particular to methods of preparing catalysts for the catalytic cracking of oil fractions for the production of C2-C4 olefins and high-octane gasoline.
  • C2-C4 olefins are formed, but their yield does not exceed 12.0 wt.% (Sadeghbeigi R., Fluid catalytic cracking handbook: Design, Operation and Troubleshooting of FCC. - Second ed. - Gulf. Professional Publ., 2000 .-- P.155).
  • the low yield of light olefins and the low octane numbers of cracked gasolines are associated with the large contribution of hydrogen redistribution reactions on catalysts with a high content of rare earth oxides (REE) in the catalyst (more than 1.5 wt.%).
  • REE rare earth oxides
  • Modern zeolite-containing catalysts are composite materials consisting of the active component - zeolite HP33Y, and a matrix including binders and filler.
  • zeolite NRZEU is used in ultra-stable form, that is, with an increased lattice module of zeolite.
  • a known catalyst and method for producing a cracking catalyst based on ultra-stable type Y zeolite, kaolin, sources of aluminum and silicon oxides (US N ° 61 14267).
  • the ultrastabilization of the zeolite is carried out using ammonium hexafluorosilicate.
  • the lattice module of the zeolite was 12.5 and the content of rare earth elements in the zeolite is less than 4.0 wt.%.
  • the disadvantage of this method is the decrease in the crystallinity of the zeolite when interacting with ammonium hexafluorosilicate and the low activity of the catalyst obtained on the basis of such a zeolite.
  • a known catalyst for reducing the sulfur content of gasoline for a catalytic cracking process (RU Ne 2396304), which uses a rob ⁇ réelle-type zeolite selected from the group consisting of HY, USY, REY, REUSY, CREY, CREUSY, MgUSY, ZnUSY, MnUSY zeolites and mixtures thereof, as well as Lewis acid as a component of the matrix.
  • the disadvantage of this catalyst is the low thermal stability obtained on the basis of such a zeolite catalyst.
  • Known cracking catalyst US Ne 3835031
  • Preferred metals are magnesium or a mixture containing at least 50 mol% of magnesium. Calcium, strontium or barium may also be used.
  • the crystalline aluminosilicate can be faujasite, chabazite or X- or Y- zeolite and suitable REE, hydrogen or ammonium cations to reduce the content of sodium ions in the catalyst below 0.5 wt.%>.
  • REE hydrogen or ammonium cations to reduce the content of sodium ions in the catalyst below 0.5 wt.%>.
  • the disadvantage of this catalyst is the low activity due to insufficient thermal stability of the zeolite component of the catalyst in such a matrix.
  • a known catalyst for catalytic cracking without rare earth elements (application US N ° N ° 2014021097, 2014021098), which includes a zeolite, acidified silicon salt as a binder, magnesium salts, clay and matrix material.
  • the catalytic cracking catalyst has a high matrix surface area and is useful in the catalytic cracking process, in particular in order to provide increased catalytic activity and improved hydrogen and coke selectivity without the need for rare earth metals.
  • the disadvantage of this catalyst is the lack of thermal stability of the zeolite component of the catalyst in such a matrix.
  • a known method of preparing ultra-stable zeolite for cracking catalyst (application US ⁇ " 201 10224067), in which at the first stage of preparation of the zeolite carry out ultra-stabilization of the ammonium form of the zeolite, and in the second stage - ion exchange for ammonium cations in hydrothermal conditions at temperatures from 100 to 200 ° FROM. Then spend 1 third ion exchange for rare-earth cations. Upon receipt of the catalyst from such a zeolite, the content of rare earth elements in the catalyst ranged from 0.5 to 10 wt.%.
  • the disadvantage of this method is to reduce the crystallinity of the zeolite during its hydrothermal treatment at high temperatures.
  • a known catalyst (CN J4 ° 103 159227, analogue of US N ° 2015175432) based on ultra-stable zeolite containing from 0.5 to 5.0 May. % magnesium oxide, from May 1 to May 20. % REE oxides and not more than May 1, 2. % sodium oxide.
  • the disadvantage of the proposed catalyst is the low thermal stability of the zeolite, the crystallinity of which is from 46 to 63% of the original.
  • the closest is the method of preparing a cracking catalyst with a low content of REE oxides (RU ⁇ ° 2509605), in which two-stage ultra-stabilization of zeolite by water vapor is carried out, ion exchanges of sodium cations in zeolite for ammonium and REE cations with the production of zeolite with sodium oxide content of not more than 0, 6 wt.% And REE oxides from 0.5 to 5.5 may. %
  • the disadvantage of this method of preparing a cracking catalyst is also the low thermal stability of the catalyst in relation to its catalytic properties.
  • the invention solves the problem of obtaining an effective cracking catalyst.
  • the proposed method for the preparation of a cracking catalyst includes carrying out ion exchanges for cations of rare-earth elements and ammonium in NaY zeolite, two stages of ultra-stabilization of zeolite in water vapor, mixing zeolite with a matrix using bentonite clay, aluminum hydroxide and amorphous aluminosilicate as components, obtaining a composition, spray drying the resulting composition, followed by calcining and obtaining a catalyst, moreover, before the first stage of ultra-stabilization, additionally nny exchange of sodium cations in the zeolite magnesium cations or calcium cations without intermediate filtering, to yield Y zeolite having a sodium oxide content of not more than 0.6 wt.%; rare earth oxides from 0.5 to 5.5 wt.%; oxide magnesium from 0.5 to 4.0 wt.% or calcium oxide from 1, 0 to 7.0 wt.%, and the content of rare earth oxides in the catalyst from 0, 1 to 1, 1 w
  • a method of preparing zeolite is to carry out the following steps:
  • the method of preparation of the catalyst is as follows. Bentonite clay is subjected to treatment with ammonium nitrate according to the ion exchange method to reduce the content of sodium oxide. After processing, the residual content of sodium oxide in clay is less than 0.2 wt.%.
  • the aluminum hydroxide suspension is treated with concentrated nitric acid.
  • a suspension of ultra stable zeolite Y is added to the prepared composition bentonite clay - aluminum hydroxide - amorphous aluminosilicate.
  • the mixture is filtered, molded into microspherical particles less than 0.25 mm in size.
  • the resulting catalyst dried and calcined in water vapor at temperatures of 680-740 ° C.
  • the lattice module of the zeolite in the catalyst is from 8.0 to 12.0.
  • the reaction conditions for evaluating the activity of catalyst samples are as follows: cracking temperature 527 ° C, weight ratio of catalyst / feed 4.0, feed time 30 s. Test conditions are in accordance with ASTM D-3907. Hydrotreated vacuum gas oil was used as raw material. The catalysts were preliminarily subjected to thermocouple stabilization at a temperature of 760–788 ° ⁇ for 5–9 h in a medium of 100% water vapor in accordance with ASTM D 4463.
  • the table shows the activity of the catalysts after various conditions of thermocouple stabilization, the content of sodium and REE oxides, as well as the content of calcium and magnesium oxides from the zeolite component.
  • the total content of magnesium or calcium oxides is not given due to the content of these oxides in bentonite clay of different chemical composition.
  • a method of preparing zeolite is to carry out the following steps:
  • the catalyst is prepared by the method described above.
  • the resulting catalyst is dried and calcined in water vapor at a temperature of 720 ° C.
  • the lattice modulus of the zeolite in the catalyst is 8.0.
  • the content of ultra-stable zeolite in the catalyst composition is 20 wt.%, Bentonite clay 22 wt.%, Alumina from the precipitated aluminum hydroxide 20 wt.%, Amorphous aluminosilicate 38 wt.%.
  • the content of rare earth oxides in the catalyst is 1, 1 wt.% And sodium oxide 0.22 wt.%.
  • the preparation of the zeolite is carried out as in example 1, the difference is that before the first ultrastabilization of the zeolite, an ion exchange of sodium cations in zeolite for magnesium cations is carried out at a ratio of g-equiv of magnesium and residual sodium in zeolite equal to 1.5, and the ion exchange of sodium cations on REE cations are carried out at a ratio of g-equiv of REE and residual sodium equal to 0, 12.
  • Preparation of the catalyst is carried out as in example 1.
  • the content of magnesium oxide in the zeolite is 4.0 wt.%, REE oxides 0.5 wt.%, sodium oxide 0 6 wt.%.
  • the content of rare earth oxides in the catalyst is 0.1 mass%, sodium oxide 0.21 mass%. magnesium oxide from the zeolite component of 0.8 wt.%.
  • an ion exchange of sodium cations in zeolite for calcium cations is carried out at a ratio of g-eq of calcium and residual sodium in zeolite 2.0
  • the ion exchange of sodium cations for REE cations is carried out at a ratio g-equiv of REE and residual sodium equal to 0.35.
  • the content of calcium oxide in the zeolite is 7.0 wt.%, REE oxides 1, 5 wt.%, Sodium oxide 0.5 wt.%.
  • the content of rare earth oxides in the catalyst is 0.3 wt.%, Sodium oxide 0.20 wt.%, Calcium oxide from the zeolite component 1, 4 wt.%.
  • an ion exchange of sodium cations in zeolite for calcium cations is carried out with a ratio of g-eq of calcium and residual sodium in zeolite 0.3, and the ion exchange of sodium cations for REE cations is carried out at a ratio of r-eq REE and residual sodium equal to 0.5.
  • the content of calcium oxide in the zeolite is 1.0 wt.%, REE oxides 2.5 wt.%, Sodium oxide 0.6 wt.%.
  • the content of rare earth oxides in the catalyst is 0.5 wt.%, Sodium oxide 0.19 wt.%, Calcium oxide from the zeolite component 0.2 wt.%.
  • the preparation of the zeolite is carried out as in example 2, the difference is that before the first ultra-stabilization of the zeolite, an ion exchange of sodium cations in zeolite for magnesium cations is carried out at a ratio of g-eq of magnesium and residual sodium in zeolite of 1.0, and an ion exchange of sodium cations for cations REE is carried out at a ratio of g-equiv of REE and residual sodium equal to 0.9.
  • the content of magnesium oxide in the zeolite is 0.5 wt.%, REE oxides 5.5 wt.%, Sodium oxide 0.51 wt.%.
  • the preparation of the catalyst is carried out as in example 1.
  • the content of rare earth oxides in the catalyst is 1, 1 wt.%, Sodium oxide 0, 18 wt.%, Magnesium oxide from the zeolite component of 0.1 wt.%.
  • the proposed method for the preparation of cracking catalysts provides a significant increase in the thermal stability of the catalysts with respect to their catalytic properties.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Catalysts (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Abstract

L'invention concerne le domaine des industries de transformation du pétrole et pétrochimique et notamment des procédés pour préparer des catalyseurs de craquage catalytique de fractions de pétrole. L'invention résout le problème de création d'un catalyseur de craquage efficace. Le procédé de préparation d'un catalyseur de craquage comprend des échanges d'ions pour des cations de terres rares et d'ammonium dans la zéolite NaY, deux stades d'ultrastabilisation de zéolite dans un milieu de vapeur d'eau, le mélange de zéolite à une matrice dont les composants sont de l'argile bentonite, de l'hydroxyde d'aluminium et de l'aluminosilicate amorphe, l'obtention de la composition, le séchage par pulvérisation suivi d'un recuit et d'une obtention de catalyseur, le premier stade d'ultrastabilisation étant précédé par un échange d'ions des cations de sodium dans la zéolite pour des cations de magnésium ou des cations de calcium sans filtrage intermédiaire, avec obtention d'une zéolite Y présentant une teneur en oxyde de sodium de 0,6 % en masse au maximum; d'oxydes de terres rares de 0,5 à 5,5 en % en masse; de magnésie de 0,5 à 4,0 en % en masse; ou d'oxyde de calcium de 1,0 à 7,0 en % en masse; et la teneur du catalyseur en oxydes de terres rares étant de 0,1 à 1,1 en % en masse ; en oxyde de sodium moins de 0,23 % en masse; en magnésie en composé zéolite de 0,1 à 0,8 en %; en masse; ou en oxyde de calcium venant d'un composé de zéolite de 0,2 à 1,4 en %; % en masse.
PCT/RU2017/000564 2016-08-03 2017-08-02 Procédé de préparation d'un catalyseur de craquage avec des éléments alcalino-terreux WO2018026313A1 (fr)

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EA201900047A EA037033B1 (ru) 2016-08-03 2017-08-02 Способ приготовления катализаторов крекинга с щелочноземельными элементами

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RU2016131952 2016-08-03
RU2016131952A RU2621345C1 (ru) 2016-08-03 2016-08-03 Способ приготовления катализатора крекинга с щелочноземельными элементами

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110653000A (zh) * 2018-06-29 2020-01-07 中国石油化工股份有限公司 一种催化裂化催化剂及其制备和应用
CN110653002A (zh) * 2018-06-29 2020-01-07 中国石油化工股份有限公司 一种催化裂化催化剂
CN110652997A (zh) * 2018-06-29 2020-01-07 中国石油化工股份有限公司 一种多产双甲基异构烃的高稳定性改性y型分子筛及其制备方法

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3815785A4 (fr) 2018-06-29 2021-10-06 China Petroleum & Chemical Corporation Tamis moléculaire de type y modifié, catalyseur de craquage catalytique le comprenant, préparation et utilisation associées
EP3815784A4 (fr) 2018-06-29 2021-10-06 China Petroleum & Chemical Corporation Tamis moléculaire de type y modifié, catalyseur de craquage catalytique le comprenant, son procédé de préparation et son application

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US20110224067A1 (en) * 2008-12-18 2011-09-15 Richard Franklin Wormsbecher Novel ultra stable zeolite y and method for manufacturing the same
CN103159277A (zh) * 2011-12-12 2013-06-19 株式会社迪思科 加工废液处理装置
RU2509605C1 (ru) * 2013-01-09 2014-03-20 Открытое акционерное общество "Газпромнефть-Омский НПЗ" Способ приготовления катализатора с низким содержанием редкоземельных элементов для крекинга нефтяных фракций

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CN103159227B (zh) * 2011-12-15 2015-05-13 中国石油天然气股份有限公司 一种镁改性超稳稀土y型分子筛及其制备方法

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RU2300420C2 (ru) * 2005-06-28 2007-06-10 Институт проблем переработки углеводородов Сибирского отделения Российской Академии наук Способ приготовления микросферического катализатора для крекинга нефтяных фракций
US20110224067A1 (en) * 2008-12-18 2011-09-15 Richard Franklin Wormsbecher Novel ultra stable zeolite y and method for manufacturing the same
CN103159277A (zh) * 2011-12-12 2013-06-19 株式会社迪思科 加工废液处理装置
RU2509605C1 (ru) * 2013-01-09 2014-03-20 Открытое акционерное общество "Газпромнефть-Омский НПЗ" Способ приготовления катализатора с низким содержанием редкоземельных элементов для крекинга нефтяных фракций

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110653000A (zh) * 2018-06-29 2020-01-07 中国石油化工股份有限公司 一种催化裂化催化剂及其制备和应用
CN110653002A (zh) * 2018-06-29 2020-01-07 中国石油化工股份有限公司 一种催化裂化催化剂
CN110652997A (zh) * 2018-06-29 2020-01-07 中国石油化工股份有限公司 一种多产双甲基异构烃的高稳定性改性y型分子筛及其制备方法
CN110653000B (zh) * 2018-06-29 2020-12-04 中国石油化工股份有限公司 一种催化裂化催化剂及其制备和应用
CN110653002B (zh) * 2018-06-29 2020-12-04 中国石油化工股份有限公司 一种催化裂化催化剂
CN110652997B (zh) * 2018-06-29 2021-01-08 中国石油化工股份有限公司 一种多产双甲基异构烃的高稳定性改性y型分子筛及其制备方法

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RU2621345C1 (ru) 2017-06-02
EA201900047A1 (ru) 2019-07-31

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