CN1228419C - Preparation method of distillate deep hydrogenation desulfur catalyst - Google Patents
Preparation method of distillate deep hydrogenation desulfur catalyst Download PDFInfo
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- CN1228419C CN1228419C CN 03134149 CN03134149A CN1228419C CN 1228419 C CN1228419 C CN 1228419C CN 03134149 CN03134149 CN 03134149 CN 03134149 A CN03134149 A CN 03134149A CN 1228419 C CN1228419 C CN 1228419C
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- molecular sieve
- preparation
- zeolite
- catalyst
- oil
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- 239000003054 catalyst Substances 0.000 title claims abstract description 24
- 238000002360 preparation method Methods 0.000 title claims abstract description 12
- 238000005984 hydrogenation reaction Methods 0.000 title description 2
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000002808 molecular sieve Substances 0.000 claims abstract description 22
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910021536 Zeolite Inorganic materials 0.000 claims abstract description 21
- 239000010457 zeolite Substances 0.000 claims abstract description 21
- 239000002131 composite material Substances 0.000 claims abstract description 8
- 239000000470 constituent Substances 0.000 claims abstract description 8
- 229910003296 Ni-Mo Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- DDTIGTPWGISMKL-UHFFFAOYSA-N molybdenum nickel Chemical group [Ni].[Mo] DDTIGTPWGISMKL-UHFFFAOYSA-N 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 6
- 239000013078 crystal Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 206010013786 Dry skin Diseases 0.000 claims description 3
- 238000013019 agitation Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000001704 evaporation Methods 0.000 claims description 3
- 229910052750 molybdenum Inorganic materials 0.000 claims description 3
- 229910020515 Co—W Inorganic materials 0.000 claims description 2
- 229910052763 palladium Inorganic materials 0.000 claims description 2
- 229910052697 platinum Inorganic materials 0.000 claims description 2
- 229910052707 ruthenium Inorganic materials 0.000 claims description 2
- 229910052721 tungsten Inorganic materials 0.000 claims description 2
- IYYZUPMFVPLQIF-UHFFFAOYSA-N dibenzothiophene Chemical compound C1=CC=C2C3=CC=CC=C3SC2=C1 IYYZUPMFVPLQIF-UHFFFAOYSA-N 0.000 abstract description 26
- 238000006243 chemical reaction Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 239000002283 diesel fuel Substances 0.000 abstract description 2
- 238000009826 distribution Methods 0.000 abstract description 2
- 239000003502 gasoline Substances 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract description 2
- 239000003921 oil Substances 0.000 abstract 4
- 239000012876 carrier material Substances 0.000 abstract 2
- 238000005504 petroleum refining Methods 0.000 abstract 2
- 239000006185 dispersion Substances 0.000 abstract 1
- 239000010742 number 1 fuel oil Substances 0.000 abstract 1
- 239000011148 porous material Substances 0.000 abstract 1
- 230000001737 promoting effect Effects 0.000 abstract 1
- 239000002994 raw material Substances 0.000 abstract 1
- 239000001993 wax Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 6
- 238000006477 desulfuration reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 description 4
- 230000023556 desulfurization Effects 0.000 description 4
- 239000012263 liquid product Substances 0.000 description 4
- 238000005303 weighing Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000003208 petroleum Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 2
- 238000004587 chromatography analysis Methods 0.000 description 2
- 238000007598 dipping method Methods 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 description 2
- 229930192474 thiophene Natural products 0.000 description 2
- 150000003577 thiophenes Chemical class 0.000 description 2
- 238000010792 warming Methods 0.000 description 2
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 description 1
- 229940010552 ammonium molybdate Drugs 0.000 description 1
- 235000018660 ammonium molybdate Nutrition 0.000 description 1
- 239000011609 ammonium molybdate Substances 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000000748 compression moulding Methods 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 125000004434 sulfur atom Chemical group 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
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Abstract
The present invention relates to a preparation method of a deep hydrodesulfurization catalyst for distillate oil, which belongs to the technical fields of new materials, petroleum refining and petrochemical industry. The preparation method is used for preparing a deep hydrodesulfurization catalyst for distillate oil, such as gasoline, coal oil, diesel oil, wax oil, etc., used in petroleum refining industry, and the catalyst is prepared by adopting a novel carrier material for loading metallic active constituents. The novel carrier material is a composite carrier composed of a mesoporous molecular sieve and a zeolite molecular sieve. The composite carrier having the characteristics of double-pore distribution and acidity complementation, which is used as the carrier of the hydrodesulfurization catalyst, ensures the high dispersion of the metallic active constituents on the surface of the carrier and the promoting action performed by the metallic active constituents on a hydrodesulfurization reaction, and the high-activity hydrodesulfurization catalyst at low temperatures is obtained. The present invention has the advantage that nearly all dibenzothiophene and derivatives thereof are transformed. The present invention is mainly used for manufacturing a hydrofining catalyst for refined oil and a prerefining hydrodesulfurization catalyst for raw materials in petrochemical industry production.
Description
Technical field the invention belongs to novel material, refining of petroleum and petrochemical technology field.
The background technology hydrofining technology is the gordian technique of production cleaner engines fuel, and as gasoline and diesel oil etc., efficient deep hydrodesulfurizationof catalyzer then is the core of this technology.The history in existing more than 50 year of hydrogenating desulfurization skilled industryization, development of technology always tightly center on the exploitation of highly effective hydrogenation desulfurization catalyst.In fraction oil of petroleum, contain the structure various sulfocompounds different, comprise mercaptan, thioether, sulfide, thiophenes with molecular weight.Wherein, thiophenes is difficult to remove.And, proved that dibenzothiophene and derivative thereof are the most difficult sulfocompounds that removes in the petroleum fractions.Therefore, carry out desulphurization reaction with traditional catalyst after, residual sulfocompound substantially all is dibenzothiophene and derivative thereof.That is to say, realize that deep desulfuration must develop dibenzothiophene and derivative thereof are had highly active catalyzer.
Summary of the invention purpose of the present invention just provides a kind ofly has the preparation method of highly active distillate oil deep Hydrobon catalyst to dibenzothiophene and derivative thereof.
Technical solution step of the present invention is,
A. with the mesoporous molecular sieve and the zeolite molecular sieve uniform mixing of preparation, preparation has the composite molecular screen that diplopore distributes, and by mass percentage, mesoporous molecular sieve is 0~100%, and zeolite molecular sieve is 0~100%,
B. composite molecular screen is added in the closed container, vacuumize, add the mixing solutions that contains metal active constituent then, under agitation condition, flooded 0.5~2 hour, then 80~160 ℃ of dryings 2~20 hours, evaporating water 400~600 ℃ of roastings 2~10 hours in air, makes oxidized catalyst.
Mesoporous molecular sieve is MCM-41, SBA-15/16 etc.
Zeolite molecular sieve is the zeolite molecular sieve with microporous crystal structure.
Zeolite molecular sieve with microporous crystal structure is Y zeolite, ZSM-5 zeolite, mordenite, β zeolite, A type zeolite, X type zeolite etc.
Metal active constituent is Ni-Mo, Co-Mo, Ni-W, Co-W and Pt, Pd, Ru etc. in the mixing solutions.The charge capacity of metal component is 0~35% by mass percentage
Prepared catalyzer is estimated on high pressure fixed-bed reactor.Because oxidized catalyst does not have hydrodesulfurization activity, must carry out prevulcanized before carrying out hydrodesulfurization reaction.Operation steps is as follows:
The oxidized catalyst that fragmentation is good adds the flat-temperature zone of reactor, and the two ends of bed are supported with quartz sand, feeds vulcanizing agent, at 0.2~1 hour temperature of reactor is warming up to 200~600 ℃ from room temperature, vulcanizes under this temperature 1~8 hour.Vulcanizing agent is H
2S and H
2Gas mixture or other vulcanizing agents, as CS
2Deng.
Be cooled to the hydrodesulfurization reaction temperature then.Close vulcanizing agent, feed hydrogen and in reactive system, squeeze into the perhydronaphthalene solution that contains dibenzothiophene with high-pressure metering pump simultaneously, the beginning hydrodesulfurization reaction.Every liquid product of 1 hour row, after 3-5 hour, each component concentrations keeps constant in the liquid product.Gathered a sample every 15 minutes, and form with the gas chromatographic analysis product.Collection is no less than 5 samples and carries out compositional analysis, and the mean value of continuous 3 parallel samples is as the composition of product before and after getting.Because sulfur atom-containing not in the reaction product structure of dibenzothiophene is represented desulfurization degree with the transformation efficiency of dibenzothiophene.With the index of this transformation efficiency as evaluation of catalyst activity.
The invention has the beneficial effects as follows that dibenzothiophene and derivative thereof almost all transform.
The present invention is further illustrated below in conjunction with drawings and Examples for description of drawings.
Fig. 1 is that different ratios composite molecular screen of the present invention is made on the catalyzer of preparing carriers the dibenzothiophene hds conversion with the variation relation figure of temperature of reaction.
Among the figure, transverse axis is represented temperature ℃, and the longitudinal axis is represented the transformation efficiency % of dibenzothiophene.
■ represents Ni-Mo (0.75)/A, zero expression Ni-Mo/A-B (0.75),
represents Ni-Mo (0.75)/A-B (0.9), ▲ expression Ni-Mo (0.75)/A-B (0.25).
A represents the MCM-41 mesoporous molecular sieve, and B represents the y-type zeolite molecular sieve, and x represents the ratio of A and the weight of B among the A-B (x).
Embodiment
Take by weighing MCM-41 mesoporous molecular sieve 2.5 and restrain, take by weighing HY zeolite molecular sieve 7.5 grams, evenly grind and mixing, prepare composite molecular screen with diplopore distribution with mortar.Complex carrier is added one be connected with in the there-necked flask of funnel, vacuumized under the room temperature 30 minutes.Take by weighing 3.78 gram nickelous nitrate (Co (NO
3)
26H
2O) and 3.06 gram ammonium molybdate (NH
4)
6Mo
7O
244H
2O), be dissolved in 25 ml deionized water, be made into dipping solution.Under vacuum condition, the steeping fluid adding is filled in the there-necked flask of carrier.Dipping is 1 hour under agitation condition, quick evaporating water then, and 120 ℃ of dryings 12 hours, roasting 5 hours in air under 450 ℃ then made oxidized catalyst.
Oxidized catalyst is made beaded catalyst through compression molding and fragmentation, takes by weighing broken good catalyzer 0.2 gram, adds the flat-temperature zone of reactor, and the two ends of bed are supported with quartz sand.Feeding contains 10%H
2S and H
2Vulcanizing agent, open process furnace and make beds be warming up to 400 ℃ with the speed of 10 ℃/min, constant temperature 3 hours is lowered the temperature then naturally.When the reaction bed temperature is reduced to 280 ℃, close vulcanizing agent, feed hydrogen is squeezed into dibenzothiophene simultaneously in reactive system with high-pressure metering pump perhydronaphthalene solution, and keep constant temperature, the beginning hydrodesulfurization reaction.Every liquid product of 1 hour row, after 3-5 hour, each component concentrations keeps constant in liquid product.Gathered a sample every 15 minutes, and form with the gas chromatographic analysis product.When 280 ℃ of reactions, the desulfurization degree of dibenzothiophene can reach 99.6%.
Claims (4)
1. the preparation method of a distillate oil deep Hydrobon catalyst is characterized in that,
A. with mesoporous molecular sieve and zeolite molecular sieve uniform mixing, preparation has the composite molecular screen that diplopore distributes, and by mass percentage, mesoporous molecular sieve is 0~100%, and zeolite molecular sieve is 0~100%, and mesoporous molecular sieve is MCM-41, SBA-15 or SBA-16;
B. composite molecular screen is added in the closed container, vacuumize, add the mixing solutions that contains metal active constituent then, under agitation condition, flooded 0.5~2 hour, then 80~160 ℃ of dryings 2~20 hours, evaporating water 400~600 ℃ of roastings 2~10 hours in air, makes oxidized catalyst; Metal active constituent is Ni-Mo, Co-Mo, Ni-W, Co-W, Pt, Pd or Ru in the mixing solutions, and the charge capacity of metal component is 0~35% by mass percentage.
2. the preparation method of a kind of distillate oil deep Hydrobon catalyst according to claim 1 is characterized in that, zeolite molecular sieve is the zeolite molecular sieve with microporous crystal structure.
3. the preparation method of a kind of distillate oil deep Hydrobon catalyst according to claim 1 and 2 is characterized in that, the zeolite molecular sieve with microporous crystal structure is Y zeolite, ZSM-5 zeolite, mordenite, β zeolite, A type zeolite or X type zeolite.
4. the preparation method of a kind of distillate oil deep Hydrobon catalyst according to claim 1 is characterized in that, metal active constituent is Ni-Mo in the mixing solutions, and by mass percentage, Ni is 0~15%, and Mo is 5~35%.
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CN 03134149 CN1228419C (en) | 2003-08-20 | 2003-08-20 | Preparation method of distillate deep hydrogenation desulfur catalyst |
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CN 03134149 CN1228419C (en) | 2003-08-20 | 2003-08-20 | Preparation method of distillate deep hydrogenation desulfur catalyst |
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CN1228419C true CN1228419C (en) | 2005-11-23 |
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Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN101279284B (en) * | 2007-04-04 | 2011-07-13 | 中国石油化工股份有限公司 | Catalyst for preparing ethylene propylene from catalytic pyrolysis |
CN102049289B (en) * | 2009-10-27 | 2012-11-21 | 中国石油化工股份有限公司 | Superdeep hydrodesulfurization catalyst and preparation method thereof |
CN104511302B (en) * | 2013-09-30 | 2016-08-24 | 中国石油化工股份有限公司 | A kind of desulphurization catalyst and preparation method thereof and the method for desulfurization of hydrocarbon oil |
CN104368376B (en) * | 2014-11-17 | 2016-08-17 | 哈尔滨工业大学 | Porous zeotile supports the preparation method of nickel tungsten deep hydrodesulfurizationof catalyst |
CN105457668A (en) * | 2015-12-10 | 2016-04-06 | 哈尔滨工业大学 | Method for preparing hydrodesulfurization catalysts with zeolite serving as carriers |
CN108295809B (en) * | 2018-02-05 | 2020-12-11 | 中国海洋石油集团有限公司 | Composite desulfurization adsorbent and preparation method and application thereof |
CN108465484B (en) * | 2018-03-12 | 2020-10-09 | 济南大学 | Preparation method of FCC gasoline desulfurization and hydrogenation modified catalyst |
CN112708460A (en) * | 2019-10-24 | 2021-04-27 | 中国石油化工股份有限公司 | Process for producing low carbon olefins and low sulfur fuel oil components |
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