CN110152679A - 一种脱硫催化剂及其制备方法和应用 - Google Patents
一种脱硫催化剂及其制备方法和应用 Download PDFInfo
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- 239000003054 catalyst Substances 0.000 title claims abstract description 48
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 30
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 21
- 239000011593 sulfur Substances 0.000 claims abstract description 21
- 239000007789 gas Substances 0.000 claims abstract description 18
- 239000003610 charcoal Substances 0.000 claims abstract description 17
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 15
- 229910052742 iron Inorganic materials 0.000 claims abstract description 15
- 239000011733 molybdenum Substances 0.000 claims abstract description 15
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 15
- 239000010941 cobalt Substances 0.000 claims abstract description 14
- 229910017052 cobalt Inorganic materials 0.000 claims abstract description 14
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000011149 active material Substances 0.000 claims abstract description 10
- 238000005516 engineering process Methods 0.000 claims abstract description 5
- 239000013543 active substance Substances 0.000 claims abstract description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 17
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 16
- 239000011701 zinc Substances 0.000 claims description 16
- 229910052725 zinc Inorganic materials 0.000 claims description 16
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 12
- 238000003756 stirring Methods 0.000 claims description 12
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 8
- 229910000720 Silicomanganese Inorganic materials 0.000 claims description 8
- 229910017604 nitric acid Inorganic materials 0.000 claims description 8
- 239000011787 zinc oxide Substances 0.000 claims description 6
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 claims description 5
- 229910000428 cobalt oxide Inorganic materials 0.000 claims description 5
- IVMYJDGYRUAWML-UHFFFAOYSA-N cobalt(ii) oxide Chemical compound [Co]=O IVMYJDGYRUAWML-UHFFFAOYSA-N 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- DQMUQFUTDWISTM-UHFFFAOYSA-N O.[O-2].[Fe+2].[Fe+2].[O-2] Chemical compound O.[O-2].[Fe+2].[Fe+2].[O-2] DQMUQFUTDWISTM-UHFFFAOYSA-N 0.000 claims description 4
- 238000001035 drying Methods 0.000 claims description 4
- 229910000476 molybdenum oxide Inorganic materials 0.000 claims description 4
- PQQKPALAQIIWST-UHFFFAOYSA-N oxomolybdenum Chemical compound [Mo]=O PQQKPALAQIIWST-UHFFFAOYSA-N 0.000 claims description 4
- 239000000908 ammonium hydroxide Substances 0.000 claims description 2
- 230000008859 change Effects 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 25
- 230000008569 process Effects 0.000 abstract description 12
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 abstract description 5
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 abstract description 5
- 230000003647 oxidation Effects 0.000 abstract description 5
- 238000007254 oxidation reaction Methods 0.000 abstract description 5
- JJWKPURADFRFRB-UHFFFAOYSA-N carbonyl sulfide Chemical compound O=C=S JJWKPURADFRFRB-UHFFFAOYSA-N 0.000 abstract description 4
- 230000010354 integration Effects 0.000 abstract description 4
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 3
- 238000006555 catalytic reaction Methods 0.000 abstract description 2
- 238000007037 hydroformylation reaction Methods 0.000 abstract description 2
- 239000001257 hydrogen Substances 0.000 abstract description 2
- 229910052739 hydrogen Inorganic materials 0.000 abstract description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 2
- 230000007062 hydrolysis Effects 0.000 abstract description 2
- 238000006460 hydrolysis reaction Methods 0.000 abstract description 2
- 229920001021 polysulfide Polymers 0.000 abstract description 2
- 239000005077 polysulfide Substances 0.000 abstract description 2
- 150000008117 polysulfides Polymers 0.000 abstract description 2
- 238000004073 vulcanization Methods 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract 1
- 238000006477 desulfuration reaction Methods 0.000 description 10
- 230000023556 desulfurization Effects 0.000 description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 6
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 5
- 230000003009 desulfurizing effect Effects 0.000 description 5
- 125000001741 organic sulfur group Chemical group 0.000 description 5
- 238000010521 absorption reaction Methods 0.000 description 4
- 235000011114 ammonium hydroxide Nutrition 0.000 description 4
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonium chloride Substances [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 description 3
- 229910052786 argon Inorganic materials 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000004090 dissolution Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 3
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Inorganic materials O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 description 3
- 238000001291 vacuum drying Methods 0.000 description 3
- 238000010792 warming Methods 0.000 description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- YTPLMLYBLZKORZ-UHFFFAOYSA-N Thiophene Chemical compound C=1C=CSC=1 YTPLMLYBLZKORZ-UHFFFAOYSA-N 0.000 description 2
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 2
- 238000003760 magnetic stirring Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- -1 that is Chemical compound 0.000 description 2
- 238000009279 wet oxidation reaction Methods 0.000 description 2
- AZSYUHSAQICHNK-UHFFFAOYSA-N [C]=O.[S] Chemical compound [C]=O.[S] AZSYUHSAQICHNK-UHFFFAOYSA-N 0.000 description 1
- ZMXPKUWNBXIACW-UHFFFAOYSA-N [Fe].[Co].[Mo] Chemical compound [Fe].[Co].[Mo] ZMXPKUWNBXIACW-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000035800 maturation Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- RNWHGQJWIACOKP-UHFFFAOYSA-N zinc;oxygen(2-) Chemical group [O-2].[Zn+2] RNWHGQJWIACOKP-UHFFFAOYSA-N 0.000 description 1
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- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- 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
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/70—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper
- B01J23/76—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36
- B01J23/84—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of the iron group metals or copper combined with metals, oxides or hydroxides provided for in groups B01J23/02 - B01J23/36 with arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/85—Chromium, molybdenum or tungsten
- B01J23/88—Molybdenum
- B01J23/882—Molybdenum and cobalt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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- B01J35/00—Catalysts, in general, characterised by their form or physical properties
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- B01J35/64—Pore diameter
- B01J35/643—Pore diameter less than 2 nm
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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C29/00—Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
- C07C29/74—Separation; Purification; Use of additives, e.g. for stabilisation
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- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
本发明提供了一种脱硫催化剂及其制备方法和应用,该脱硫催化剂为负载活性物质的炭;所述活性物质包括铁、钴和钼。本发明提供的脱硫催化剂以炭为基础,针对气源中需要同时脱除多种硫化物而研制,可将气源中羰基硫、硫醇和硫化氢在同一工艺条件下一体化脱除。使用本发明中的脱硫催化剂在脱硫工艺过程中无需水解,不必预精脱硫化氢,羰基硫和硫化氢一步催化氧化为单质硫,硫醇氧化成多硫化物,是一种绿色环保的工业用脱硫催化剂。
Description
技术领域
本发明涉及化工脱硫技术领域,更具体地,涉及一种脱硫催化剂及其制备方法和应用。
背景技术
在使用硅锰尾气制甲醇生产工艺中,由于目前普遍采用的低压甲醇合成催化剂对硫化物非常敏感,脱硫净化是保证甲醇生产长周期、稳定运行的关键。
硅锰尾气中的含硫化合物包括无机硫和有机硫,无机硫即硫化氢(H2S),有机硫包括二硫化碳(CS2)、硫氧化碳(COS)、硫醇(C2H5SH)、噻吩(C4H4S)等;其中,无机硫脱除比较容易,多采用湿法脱硫,湿法脱硫是采用溶液吸收的方法来脱除硫化物,依其吸收和再生性质,分为物理吸收法、化学吸收法、物理化学吸收法和湿法氧化法,具有生产能力大、可连续操作、技术成熟、生产成本低的优点,湿式氧化法应用最广泛,而有机硫脱除多采用干法脱硫,包括铁(钴)钼加氢法、氧化铁法、氧化锰分子筛法、活性炭法等,其脱硫工序复杂,运行成本高,仅适用于含硫量低、净化度高的场合,硅锰尾气制甲醇工艺中的精脱硫工段一般采用干法脱硫。
现有的脱硫催化剂硫容量不能满足需求,无机硫和有机硫无法一体化脱除,工艺复杂,对环境的污染大。
发明内容
本发明的第一目的在于提供一种脱硫催化剂,该脱硫催化剂可以将气源中需要同时脱除的硫化物在同一工艺条件下一体化脱除。
该脱硫催化剂为负载活性物质的炭;所述活性物质包括铁、钴和钼。
其中,本发明的炭优选为活性炭。
在本发明一个优选实施方式中,上述铁、钴和钼分别以三氧化二铁、氧化钴、氧化钼的形式存在。
在本发明一个优选实施方式中,所述铁、钴、钼、炭的质量比为(1~15):(1~10):(1~18):(37~97),优选为(1~5):(1~4):(1~5.5):(85.5~97)。
在本发明一个优选实施方式中,上述活性物质还包括锌。所述锌优选以氧化锌的形式存在。所述锌占所述脱硫催化剂总质量的1~20wt%。
在本发明一个优选实施方式中,活性物质由三氧化二铁、氧化钴、氧化钼和氧化锌组成。
具体地,该脱硫催化剂为负载活性物质的炭,该活性物质包括铁、钴和钼;其中,在该脱硫催化剂中,铁、钴、钼以及锌分别优选占脱硫催化剂总质量1~15wt%、1~10wt%、1~18wt%、1~20wt%,其余为炭。进一步优选地是,在该脱硫催化剂中,铁、钴、钼以及锌分别占脱硫催化剂总质量1~5wt%、1~4wt%、1~5.5wt%、1~20wt%,其余为炭。
可以使用本领域中已知的方法将活性物质负载在炭上。在本发明一个优选实施方式中,该脱硫催化剂是由以下制备方法得到的:向含有活性物质的硝酸溶液中加入炭,搅拌至溶液的pH值不变,氨水将体系pH值调至7.5~9,搅拌0.5~3小时,干燥即得。
其中,活性物质由三氧化二铁、氧化钴、氧化钼和氧化锌组成。
具体地,该脱硫催化剂中,铁、钴、钼以及锌分别占所述脱硫催化剂总质量1~15wt%、1~10wt%、1~18wt%、1~20wt%。
本发明的另一目的在于提供上述脱硫催化即的制备方法,该制备方法包括如下步骤:向含有铁、钴和钼的硝酸溶液中加入炭至溶液的pH值不变,将体系pH值调至7.5~9,搅拌0.5~3小时,干燥即得。
其中,上述硝酸溶液中还包括锌,所述锌的加入量以使所述脱硫催化剂中锌为1~20wt%。
本发明提供的脱硫催化剂可以有效地用于含硫尾气脱硫净化,脱硫率可以高达98.5%。
本发明的再一目的在于提供上述脱硫催化剂或上述的制备方法在含硫尾气脱硫工艺中的应用。其中,尤其优选地是在利用硅锰尾气生产甲醇的脱硫工艺中的应用。
使用本发明的脱硫催化剂可以有效且高效地脱硫。
本发明的有益效果:
(1)本发明提供的催化剂以炭为基础,针对气源中需要同时脱除多种硫化物而研制,可将气源中羰基硫、硫醇和硫化氢在同一工艺条件下一体化脱除;
(2)本发明的脱硫催化剂脱硫工艺过程中脱硫催化剂无需水解,也不必预精脱硫化氢,羰基硫和硫化氢一步催化氧化为单质硫,硫醇氧化成多硫化物,生成的单质硫及多硫化物沉积在炭发达的微孔中,其中炭的孔径范围为0.5~2nm,优选0.5~1.2nm,是一种环境友好的工业用脱硫催化剂;
(3)本发明提供的脱硫催化剂具有工艺简单、环保性好、硫容高等特点,可实现多种无机硫、有机硫一体化脱除。
具体实施方式
下面结合实施例,对本发明的具体实施方式作进一步详细描述。以下实施例用于说明本发明,但不用来限制本发明的范围。
若未特别指明,实施例中所用技术手段为本领域技术人员所熟知的常规手段,所用原料均为市售商品。
实施例1
本实施例提供了一种脱硫催化剂,制备方法如下:
称取5.21g Fe2O3,2.66g CoO,1.84g MoO3于500ml烧杯中,加入150ml硝酸在磁力搅拌器上搅拌溶解,溶解完全后将100g活性炭放入其中连续搅拌至溶液pH值不变(大约4个小时),滴入浓氨水溶液至pH值为8.5(滴入过程用pH计测量pH值),继续搅拌1个小时后过滤,过滤后活性炭样品在真空干燥箱中充分干燥脱去水分,干燥后活性炭样装入塑料瓶中密封,备用。
实施例2
本实施例提供了一种脱硫催化剂,制备方法如下:
称取5.21g Fe2O3,2.66g CoO,1.84g MoO3和2.30g ZnO于500ml烧杯中,加入150ml硝酸在磁力搅拌器上搅拌溶解,溶解完全后将100g活性炭放入其中连续搅拌至溶液pH值不变(大约4个小时),滴入浓氨水溶液至pH值为8.5(滴入过程用pH计测量pH值),继续搅拌1个小时后过滤,过滤后活性炭样品在真空干燥箱中充分干燥脱去水分,干燥后活性炭样装入塑料瓶中密封,备用。
实施例3
本实施例提供了一种脱硫催化剂,制备方法如下:
称取5.21g Fe2O3,2.66g CoO,1.84g MoO3和16.30g ZnO于500ml烧杯中,加入150ml硝酸在磁力搅拌器上搅拌溶解,溶解完全后将100g活性炭放入其中连续搅拌至溶液pH值不变(大约4个小时),滴入浓氨水溶液至pH值为8.5(滴入过程用pH计测量pH值),继续搅拌1个小时后过滤,过滤后活性炭样品在真空干燥箱中充分干燥脱去水分,干燥后活性炭样装入塑料瓶中密封,备用。
试验例1
取实施例1中的催化剂50g装入固定床反应器中,升温至300℃,通入常压硅锰尾气,空速为500h-1,氩气为平衡气。实验结果:脱硫率高于80%,维持时间32分钟,饱和硫容为6.2g/100g脱硫剂。
试验例2
取实施例2中的催化剂50g装入固定床反应器中,升温至300℃,通入常压硅锰尾气,空速为500h-1,氩气为平衡气。实验结果:脱硫率高于85%,维持时间38分钟,饱和硫容为14.8g/100g脱硫剂。
试验例3
取实施例3中的催化剂50g装入固定床反应器中,升温至300℃,通入常压硅锰尾气,空速为500h-1,氩气为平衡气。实验结果:脱硫率高于90%,维持时间28分钟,饱和硫容为20g/100g脱硫剂。
最后,本发明的方法仅为较佳的实施方案,并非用于限定本发明的保护范围。凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (10)
1.一种脱硫催化剂,其特征在于,所述脱硫催化剂为负载活性物质的炭;所述活性物质包括铁、钴和钼。
2.根据权利要求1所述的脱硫催化剂,其特征在于,所述铁、钴和钼分别以三氧化二铁、氧化钴、氧化钼的形式存在。
3.根据权利要求1或2所述的脱硫催化剂,其特征在于,所述铁、钴、钼、炭的质量比为(1~15):(1~10):(1~18):(37~97),优选为(1~5):(1~4):(1~5.5):(85.5~97)。
4.根据权利要求1至3中任一项所述的脱硫催化剂,其特征在于,所述活性物质还包括锌,所述锌优选以氧化锌的形式存在;所述锌占所述脱硫催化剂总质量的1~20wt%。
5.根据权利要求1至4中任一项所述的脱硫催化剂,其特征在于,所述活性物质由三氧化二铁、氧化钴、氧化钼和氧化锌组成。
6.根据权利要求5所述的脱硫催化剂,其特征在于,所述脱硫催化剂中,铁、钴、钼以及锌分别占所述脱硫催化剂总质量1~15wt%、1~10wt%、1~18wt%、1~20wt%。
7.根据权利要求1至6中任一项所述的脱硫催化剂,其特征在于,所述炭为活性炭。
8.权利要求1至7中任一项所述的脱硫催化剂的制备方法,其特征在于,包括如下步骤:向含有铁、钴和钼的硝酸溶液中加入活性炭至溶液的pH值不变,氨水将体系pH值调至7.5~9,搅拌0.5~3小时,干燥即得。
9.根据权利要求8所述的制备方法,其特征在于,所述硝酸溶液中还包括锌,所述锌的加入量以使所述脱硫催化剂中锌占比为1~20wt%。
10.权利要求1至7中任一项所述的脱硫催化剂或权利要求8或9所述的制备方法在利用硅锰尾气生产甲醇的脱硫工艺中的应用。
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