CN114950443A - 一种用于甲醇蒸汽重整制氢铜基催化剂及其制备方法 - Google Patents
一种用于甲醇蒸汽重整制氢铜基催化剂及其制备方法 Download PDFInfo
- Publication number
- CN114950443A CN114950443A CN202210603561.5A CN202210603561A CN114950443A CN 114950443 A CN114950443 A CN 114950443A CN 202210603561 A CN202210603561 A CN 202210603561A CN 114950443 A CN114950443 A CN 114950443A
- Authority
- CN
- China
- Prior art keywords
- catalyst
- copper
- starch
- source
- ball milling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000003054 catalyst Substances 0.000 title claims abstract description 86
- 239000010949 copper Substances 0.000 title claims abstract description 50
- 239000001257 hydrogen Substances 0.000 title claims abstract description 44
- 229910052739 hydrogen Inorganic materials 0.000 title claims abstract description 44
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 title claims abstract description 43
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 32
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 18
- 238000001651 catalytic steam reforming of methanol Methods 0.000 title claims abstract description 17
- 238000000034 method Methods 0.000 claims abstract description 36
- 238000000498 ball milling Methods 0.000 claims abstract description 35
- 238000001035 drying Methods 0.000 claims abstract description 23
- 239000011701 zinc Substances 0.000 claims abstract description 23
- 239000012018 catalyst precursor Substances 0.000 claims abstract description 16
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 13
- 150000001720 carbohydrates Chemical class 0.000 claims abstract description 13
- 238000002156 mixing Methods 0.000 claims abstract description 13
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 13
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 11
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000010000 carbonizing Methods 0.000 claims abstract description 8
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims abstract description 6
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims description 51
- 229920002472 Starch Polymers 0.000 claims description 30
- 239000008107 starch Substances 0.000 claims description 30
- 235000019698 starch Nutrition 0.000 claims description 30
- 229930006000 Sucrose Natural products 0.000 claims description 19
- 239000000203 mixture Substances 0.000 claims description 17
- 238000009656 pre-carbonization Methods 0.000 claims description 15
- 239000012298 atmosphere Substances 0.000 claims description 14
- 238000002407 reforming Methods 0.000 claims description 14
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000005720 sucrose Substances 0.000 claims description 9
- WQZGKKKJIJFFOK-GASJEMHNSA-N Glucose Natural products OC[C@H]1OC(O)[C@H](O)[C@@H](O)[C@@H]1O WQZGKKKJIJFFOK-GASJEMHNSA-N 0.000 claims description 4
- 229920006320 anionic starch Polymers 0.000 claims description 4
- 125000002091 cationic group Chemical group 0.000 claims description 4
- 150000002016 disaccharides Chemical class 0.000 claims description 4
- 239000008103 glucose Substances 0.000 claims description 4
- 150000004676 glycans Chemical class 0.000 claims description 4
- 150000002772 monosaccharides Chemical class 0.000 claims description 4
- 229920001282 polysaccharide Polymers 0.000 claims description 4
- 239000005017 polysaccharide Substances 0.000 claims description 4
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Chemical compound [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 claims description 4
- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 claims description 3
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical compound [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 2
- OWEGMIWEEQEYGQ-UHFFFAOYSA-N 100676-05-9 Natural products OC1C(O)C(O)C(CO)OC1OCC1C(O)C(O)C(O)C(OC2C(OC(O)C(O)C2O)CO)O1 OWEGMIWEEQEYGQ-UHFFFAOYSA-N 0.000 claims description 2
- GUBGYTABKSRVRQ-XLOQQCSPSA-N Alpha-Lactose Chemical compound O[C@@H]1[C@@H](O)[C@@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@@H](CO)O[C@H](O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-XLOQQCSPSA-N 0.000 claims description 2
- KXDHJXZQYSOELW-UHFFFAOYSA-N Carbamic acid Chemical compound NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims description 2
- 229930091371 Fructose Natural products 0.000 claims description 2
- 239000005715 Fructose Substances 0.000 claims description 2
- RFSUNEUAIZKAJO-ARQDHWQXSA-N Fructose Chemical compound OC[C@H]1O[C@](O)(CO)[C@@H](O)[C@@H]1O RFSUNEUAIZKAJO-ARQDHWQXSA-N 0.000 claims description 2
- GUBGYTABKSRVRQ-QKKXKWKRSA-N Lactose Natural products OC[C@H]1O[C@@H](O[C@H]2[C@H](O)[C@@H](O)C(O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@H]1O GUBGYTABKSRVRQ-QKKXKWKRSA-N 0.000 claims description 2
- GUBGYTABKSRVRQ-PICCSMPSSA-N Maltose Natural products O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@@H]1O[C@@H]1[C@@H](CO)OC(O)[C@H](O)[C@H]1O GUBGYTABKSRVRQ-PICCSMPSSA-N 0.000 claims description 2
- 229920000881 Modified starch Polymers 0.000 claims description 2
- 229910019142 PO4 Inorganic materials 0.000 claims description 2
- ZOIORXHNWRGPMV-UHFFFAOYSA-N acetic acid;zinc Chemical compound [Zn].CC(O)=O.CC(O)=O ZOIORXHNWRGPMV-UHFFFAOYSA-N 0.000 claims description 2
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 claims description 2
- VXAUWWUXCIMFIM-UHFFFAOYSA-M aluminum;oxygen(2-);hydroxide Chemical compound [OH-].[O-2].[Al+3] VXAUWWUXCIMFIM-UHFFFAOYSA-M 0.000 claims description 2
- DQPBABKTKYNPMH-UHFFFAOYSA-M amino sulfate Chemical compound NOS([O-])(=O)=O DQPBABKTKYNPMH-UHFFFAOYSA-M 0.000 claims description 2
- GUBGYTABKSRVRQ-QUYVBRFLSA-N beta-maltose Chemical compound OC[C@H]1O[C@H](O[C@H]2[C@H](O)[C@@H](O)[C@H](O)O[C@@H]2CO)[C@H](O)[C@@H](O)[C@@H]1O GUBGYTABKSRVRQ-QUYVBRFLSA-N 0.000 claims description 2
- 125000002057 carboxymethyl group Chemical group [H]OC(=O)C([H])([H])[*] 0.000 claims description 2
- 239000013522 chelant Substances 0.000 claims description 2
- 150000001879 copper Chemical class 0.000 claims description 2
- XTVVROIMIGLXTD-UHFFFAOYSA-N copper(II) nitrate Chemical compound [Cu+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O XTVVROIMIGLXTD-UHFFFAOYSA-N 0.000 claims description 2
- 125000002791 glucosyl group Chemical group C1([C@H](O)[C@@H](O)[C@H](O)[C@H](O1)CO)* 0.000 claims description 2
- 239000008101 lactose Substances 0.000 claims description 2
- 235000019426 modified starch Nutrition 0.000 claims description 2
- 239000010452 phosphate Substances 0.000 claims description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 claims description 2
- PTMHPRAIXMAOOB-UHFFFAOYSA-L phosphoramidate Chemical compound NP([O-])([O-])=O PTMHPRAIXMAOOB-UHFFFAOYSA-L 0.000 claims description 2
- 239000002994 raw material Substances 0.000 claims description 2
- 125000000185 sucrose group Chemical group 0.000 claims description 2
- -1 tertiary amine alkyl ether Chemical class 0.000 claims description 2
- 150000003751 zinc Chemical class 0.000 claims description 2
- 239000004246 zinc acetate Substances 0.000 claims description 2
- 230000003197 catalytic effect Effects 0.000 abstract description 3
- 239000007790 solid phase Substances 0.000 description 21
- 239000002243 precursor Substances 0.000 description 20
- 238000006243 chemical reaction Methods 0.000 description 19
- 239000002245 particle Substances 0.000 description 19
- 229960004793 sucrose Drugs 0.000 description 18
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 17
- 229910052751 metal Inorganic materials 0.000 description 12
- 239000002184 metal Substances 0.000 description 12
- 238000011049 filling Methods 0.000 description 10
- 239000007789 gas Substances 0.000 description 10
- GBMDVOWEEQVZKZ-UHFFFAOYSA-N methanol;hydrate Chemical compound O.OC GBMDVOWEEQVZKZ-UHFFFAOYSA-N 0.000 description 10
- 150000003839 salts Chemical class 0.000 description 10
- 239000000243 solution Substances 0.000 description 10
- 238000005303 weighing Methods 0.000 description 10
- 230000000052 comparative effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 238000003763 carbonization Methods 0.000 description 5
- 238000000227 grinding Methods 0.000 description 5
- 238000000975 co-precipitation Methods 0.000 description 4
- 239000002131 composite material Substances 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 4
- 238000007254 oxidation reaction Methods 0.000 description 4
- 238000001556 precipitation Methods 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 229910002706 AlOOH Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000003917 TEM image Methods 0.000 description 2
- 229910001413 alkali metal ion Inorganic materials 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 238000013508 migration Methods 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
- 229910000510 noble metal Inorganic materials 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 239000002351 wastewater Substances 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- HDYRYUINDGQKMC-UHFFFAOYSA-M acetyloxyaluminum;dihydrate Chemical compound O.O.CC(=O)O[Al] HDYRYUINDGQKMC-UHFFFAOYSA-M 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 229940009827 aluminum acetate Drugs 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001354 calcination Methods 0.000 description 1
- 150000001721 carbon Chemical group 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 230000002860 competitive effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 238000005470 impregnation Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 238000006057 reforming reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001291 vacuum drying Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Images
Classifications
-
- 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
- B01J23/80—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 zinc, cadmium or mercury
-
- 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
- B01J23/002—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
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/0009—Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
- B01J37/0027—Powdering
- B01J37/0036—Grinding
-
- 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
- B01J37/08—Heat treatment
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/323—Catalytic reaction of gaseous or liquid organic compounds other than hydrocarbons with gasifying agents
- C01B3/326—Catalytic reaction of gaseous or liquid organic compounds other than hydrocarbons with gasifying agents characterised by the catalyst
-
- 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
- B01J2523/00—Constitutive chemical elements of heterogeneous catalysts
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/02—Processes for making hydrogen or synthesis gas
- C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
- C01B2203/0227—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step
- C01B2203/0233—Processes for making hydrogen or synthesis gas containing a reforming step containing a catalytic reforming step the reforming step being a steam reforming step
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/10—Catalysts for performing the hydrogen forming reactions
- C01B2203/1041—Composition of the catalyst
- C01B2203/1076—Copper or zinc-based catalysts
-
- 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Combustion & Propulsion (AREA)
- Inorganic Chemistry (AREA)
- Catalysts (AREA)
- Hydrogen, Water And Hydrids (AREA)
Abstract
本发明公开了一种用于甲醇蒸汽重整制氢的铜基催化剂及其制备方法,该催化剂的组分包括CuO、ZnO和Al2O3,催化剂的各组分以摩尔百分比计,Cu为20‑70%;Zn为10‑60%;Al为1‑20%,制备方法包括如下步骤:1)将铜源、锌源、铝源混合并加入糖类,再经球磨后,得到催化剂前驱体;2)将1)步骤中得到的催化剂前驱体依次经过干燥、预炭化、焙烧后,即得到用于甲醇蒸汽重整制氢的铜基催化剂,本发明以糖类为碳源,避免了以往球磨法所需的有机酸等腐蚀性试剂对装置的影响,在不需要强腐蚀性试剂的情况下,可以实现球磨法制备甲醇制氢催化剂的工业化生产,具有条件温和、操作简单等优势,且将催化剂前驱体通过预炭化处理制备的催化剂催化性能更优。
Description
技术领域
本发明属于催化剂制备技术领域,具体涉及一种用于甲醇蒸汽重整制氢铜基催化剂及其制备方法。
背景技术
甲醇是一种廉价易得的氢能载体,一分子甲醇与一分子水蒸气发生重整反应(CH3OH+H2O→3H2+CO2)可以得到三分子的氢气,该反应具有反应条件温和、无腐蚀、产物成分少易分离等优点,在现场制氢用氢领域中具有明显的竞争优势,近年来该技术得到了广泛的研究。
目前报道的用于甲醇重整制氢催化剂主要有两类:一类是非贵金属催化剂,主要包括Cu、Ni催化剂;另一类是贵金属催化剂,包括Pd、Pt催化剂。Cu基催化剂因其重整活性好,氢气选择性高且价格便宜等优点成为目前甲醇蒸汽重整制氢催化剂研究的首选。
目前对于铜系催化剂,通常的制备方法有浸渍法、沉淀法等。其中以沉淀法最为常见,共沉淀法制备的催化剂具有活性高、组分均匀、热稳定性好等优点,但是沉淀法影响因素较多,制备过程中金属盐、沉淀剂种类、pH值、沉淀温度、沉淀方法、老化时间、残留的碱金属离子和焙烧温度等因素都会对催化剂的结构和催化性能产生影响。另一方面,通过共沉淀制备的催化剂需要过滤洗涤去除碱金属离子,因此产生大量废水。
球磨法因其价格低廉、环境友好、高效率和可控性高的特点,受到了广大学者的关注,目前球磨法制备铜系催化剂的研究较多,但是该方法有如下缺点:
1)使用草酸、柠檬酸等腐蚀性试剂时,对装置的要求高,增加了成本;2)焙烧处理过程中活性组分容易出现烧结、迁移及流失的问题。
发明内容
鉴于现有技术存在的问题,本发明的目的在于提供一种用于甲醇蒸汽重整制氢铜基催化剂及其制备方法,以铜盐、锌盐、铝盐为原料,加入糖类作为有机螯合剂,通过机械球磨的方法制备催化剂前驱体,经过预炭化过程铆定金属,抑制焙烧过程中铜物种的烧结。不仅制备过程简单易操作,而且没有废水的产生,绿色环保无污染。
本发明的技术方案如下:
本发明提出了一种用于甲醇蒸汽重整制氢的铜基催化剂,该催化剂的组分包括CuO、ZnO和Al2O3,所述催化剂的各组分以摩尔百分比计,Cu为20-70%;Zn为10-60%;Al为1-20%。
本发明还提出了一种用于甲醇蒸汽重整制氢的铜基催化剂的制备方法,以铜盐、锌盐和铝盐为原料,并加入糖类作为螯合物,采用机械球磨法制备,该方法包括具体如下步骤:
1)将铜源、锌源、铝源混合并加入糖类,再经球磨后,得到催化剂前驱体;
2)将1)步骤中得到的催化剂前驱体依次经过干燥、预炭化、焙烧后,即得到用于甲醇蒸汽重整制氢的铜基催化剂。
进一步地,1)步骤中铜源、锌源、铝源中,Cu、Zn、Al的摩尔比为(2-7):(1-6):(1-2)。
进一步地,1)步骤中铜源为硝酸铜、醋酸铜中的一种,所述锌源为硝酸锌、醋酸锌中的一种,所述铝源为硝酸铝、拟薄水铝石中的一种。
进一步地,1)步骤中铜源、锌源及铝源总摩尔量与糖类摩尔比为1:0.5-2。
进一步地,1)步骤中糖类为单糖、二糖或多糖。
进一步地,所述的单糖为葡萄糖或果糖;所述二糖为蔗糖、麦芽糖或乳糖;所述多糖为淀粉、淀粉衍生物或离子淀粉,所述的离子淀粉为阴离子淀粉、阳离子淀粉和双性离子淀粉中的至少一种,其特征在于,所述的阴离子淀粉为磷酸酯淀粉和羧甲基淀粉中的至少一种;所述的阳离子淀粉为叔胺烷基醚淀粉和季铵烷基淀粉中的至少一种;所述的双性离子淀粉为氨基磷酸酯淀粉、氨基羧酸酯淀粉和氨基硫酸酯淀粉中的至少一种。
进一步地,1)步骤的具体过程如下:在室温下,将铜源、锌源及铝源在研磨罐预混合均匀,然后再加入糖类并转移至球磨机中进行球磨0.5~8 h,球磨转速为350-550rpm,球磨结束后即得到催化剂前躯体。
进一步地,2)步骤的具体过程如下:将1)步骤得到的催化剂前驱体先进行干燥,干燥结束后对其在惰性气氛下进行预炭化,预炭化结束后在马弗炉中对其进行焙烧,焙烧结束后即得到所要制备的铜基催化剂。
进一步地,所述干燥过程在80~110℃下真空干燥2~12h;在惰性气氛下,预炭化过程在150~200℃下,热处理2~12 h;焙烧过程中在马弗炉中焙烧2~12 h,温度为350~550℃。
与现有技术相比较,本发明的有益效果如下:
1)本发明的制备方法以糖类为碳源,避免了以往球磨法所需的有机酸等腐蚀性试剂对装置的影响,在不需要强腐蚀性试剂的情况下,可以实现甲醇制氢催化剂的工业化生产,具有条件温和、操作简单等优势;
2)本发明通过预炭化处理,有利于活性组分的铆定和分散,避免了其在焙烧过程中发生烧结、迁移和流失,制备的催化剂催化性能更强;
3)本发明中以蔗糖为糖源,预炭化温度为160℃的条件下,制备的催化剂的比表面积为80 m2/g,将其用于甲醇蒸汽重整制氢反应中,实验最后的转化率可以达到81.6%。
附图说明
图1为实施例2催化剂的透射电镜图;
图2为对比例1催化剂的透射电镜图。
具体实施方式
下面结合具体实施例对本发明作进一步地说明,但本发明所保护的范围不限于所述范围。
实施例1
准确称取Cu(NO3)2·3H2O 14.50g、Zn(NO3)2·6H2O8.93g、Al(NO3)3·9H2O 3.75g,葡萄糖21.63g,先将金属盐混合均匀,然后再加入葡萄糖转移至球磨机中进行球磨,球磨机转速350rpm,时间1h,球磨结束后将所得的固相前驱物在110℃烘箱中干燥12h,对干燥后的样品进行预炭化处理,在惰性气氛下,160℃热处理12h,并在马弗炉中350℃焙烧4h得到氧化态固相前驱物。将上述的催化剂压片、破碎成40-60目颗粒,装填到反应器内,通入氢气还原气,并在250℃下对催化剂进行还原处理3h;之后通入甲醇水溶液,并在230℃、0.1 MPa下进行甲醇重整制氢反应。
实施例2
准确称取Cu(NO3)2·3H2O 14.50g、Zn(NO3)2·6H2O8.93g、Al(NO3)3·9H2O 3.75g,蔗糖41.08g,先将金属盐混合均匀,然后再加入蔗糖转移至球磨机中进行球磨,球磨机转速350rpm,时间1h,球磨结束后将所得的固相前驱物在110℃烘箱中干燥12h,对干燥后的样品进行预炭化处理,在惰性气氛下,160℃下热处理12h,并在马弗炉中350℃焙烧4h得到氧化态固相前驱物。将上述的催化剂压片、破碎成40-60目颗粒,装填到反应器内,通入氢气还原气,并在250℃下对催化剂进行还原处理3h;之后通入甲醇水溶液,并在230℃、0.1 MPa下进行甲醇重整制氢反应。
实施例3
准确称取Cu(NO3)2·3H2O 14.50g、Zn(NO3)2·6H2O8.93g、Al(NO3)3·9H2O 3.75g,淀粉41.08g,先将金属盐混合均匀,然后再加入淀粉转移至球磨机中进行球磨,球磨机转速350rpm,时间1h,球磨结束后将所得的固相前驱物在110℃烘箱中干燥12h,对干燥后的样品进行预炭化处理,在惰性气氛下,160℃下热处理12h,并在马弗炉中350℃焙烧4h得到氧化态固相前驱物。将上述的催化剂压片、破碎成40-60目颗粒,装填到反应器内,通入氢气还原气,并在250℃下对催化剂进行还原处理3h;之后通入甲醇水溶液,并在230℃、0.1 MPa下进行甲醇重整制氢反应。
实施例4
准确称取Cu(NO3)2·3H2O 14.50g、Zn(NO3)2·6H2O 8.93g、Al(NO3)3·9H2O 3.75g,蔗糖41.08g,先将金属盐混合均匀,然后再加入蔗糖转移至球磨机中进行球磨,球磨机转速350rpm,时间1h,球磨结束后将所得的固相前驱物在110℃烘箱中干燥12h,对干燥后的样品进行预炭化处理,在惰性气氛下,150℃热处理12h,并在马弗炉中350℃焙烧4h得到氧化态固相前驱物。将上述的催化剂压片、破碎成40-60目颗粒,装填到反应器内,通入氢气还原气,并在250℃下对催化剂进行还原处理3h;之后通入甲醇水溶液,并在230℃、0.1 MPa下进行甲醇重整制氢反应。
实施例5
准确称取Cu(NO3)2·3H2O 14.50g、Zn(NO3)2·6H2O8.93g、Al(NO3)3·9H2O3.75g,蔗糖41.08g,先将金属盐混合均匀,然后再加入蔗糖转移至球磨机中进行球磨,球磨机转速350rpm,时间1h,球磨结束后将所得的固相前驱物在110℃烘箱中干燥12h,对干燥后的样品进行预炭化处理,在惰性气氛下,200℃热处理12h,并在马弗炉中350℃焙烧4h得到氧化态固相前驱物。将上述的催化剂压片、破碎成40-60目颗粒,装填到反应器内,通入氢气还原气,并在250℃下对催化剂进行还原处理3h;之后通入甲醇水溶液,并在230℃、0.1 MPa下进行甲醇重整制氢反应。
实施例6
准确称取Cu(NO3)2·3H2O 14.50g、Zn(NO3)2·6H2O8.93g、Al(NO3)3·9H2O 3.75g,蔗糖41.08g,先将金属盐混合均匀,然后再加入蔗糖转移至球磨机中进行球磨,球磨机转速350rpm,时间1h,球磨结束后将所得的固相前驱物在110℃烘箱中干燥12h,对干燥后的样品进行预炭化处理,在惰性气氛下,160℃热处理2h,并在马弗炉中350℃焙烧4h得到氧化态固相前驱物。将上述的催化剂压片、破碎成40-60目颗粒,装填到反应器内,通入氢气还原气,并在250℃下对催化剂进行还原处理3h;之后通入甲醇水溶液,并在230℃、0.1 MPa下进行甲醇重整制氢反应。
实施例7
准确称取Cu(NO3)2·3H2O 14.50g、Zn(NO3)2·6H2O8.93g、Al(NO3)3·9H2O 3.75g,蔗糖41.08g,先将金属盐混合均匀,然后再加入蔗糖转移至球磨机中进行球磨,球磨机转速350rpm,时间1h,球磨结束后将所得的固相前驱物在110℃烘箱中干燥12h,对干燥后的样品进行预炭化处理,在惰性气氛下,160℃热处理6h,并在马弗炉中350℃焙烧4h得到氧化态固相前驱物。将上述的催化剂压片、破碎成40-60目颗粒,装填到反应器内,通入氢气还原气,并在250℃下对催化剂进行还原处理3h;之后通入甲醇水溶液,并在230℃、0.1 MPa下进行甲醇重整制氢反应。
实施例8
准确称取Cu(CH3COO)2·H2O3.99g、Zn(CH3COO)2·2H2O13.17g、AlOOH·nH2O1.33g(n取0.35),蔗糖41.08g,金属盐摩尔比Cu:Zn:Al = 2:6:2,先将金属盐混合均匀,然后再加入蔗糖转移至球磨机中进行球磨,球磨机转速550rpm,时间0.5h,球磨结束后将所得的固相前驱物在110℃烘箱中干燥12h,对干燥后的样品进行预炭化处理,在惰性气氛下,160℃热处理6h,并在马弗炉中350℃焙烧4h得到氧化态固相前驱物。将上述的催化剂压片、破碎成40-60目颗粒,装填到反应器内,通入氢气还原气,并在250℃下对催化剂进行还原处理3h;之后通入甲醇水溶液,并在230℃、0.1MPa下进行甲醇重整制氢反应。
实施例9
准确称取Cu(CH3COO)2·H2O13.97g、Zn(CH3COO)2·2H2O2.20g、AlOOH·nH2O1.33g(n取0.35),蔗糖41.08g,金属盐摩尔比Cu:Zn:Al=7:1:2,先将金属盐混合均匀,然后再加入蔗糖转移至球磨机中进行球磨,球磨机转速350rpm,时间8h,球磨结束后将所得的固相前驱物在110℃烘箱中干燥12h,对干燥后的样品进行预炭化处理,在惰性气氛下,160℃热处理6h,并在马弗炉中350℃焙烧4h得到氧化态固相前驱物。将上述的催化剂压片、破碎成40-60目颗粒,装填到反应器内,通入氢气还原气,并在250℃下对催化剂进行还原处理3h;之后通入甲醇水溶液,并在230℃、0.1MPa下进行甲醇重整制氢反应。
对比例1
准确称取Cu(NO3)2·3H2O 14.50g、Zn(NO3)2·6H2O8.93g、Al(NO3)3·9H2O 3.75g,蔗糖41.08g,先将金属盐混合均匀,然后再加入蔗糖转移至球磨机中进行球磨,球磨机转速350rpm,时间1h,球磨结束后将所得的固相前驱物在110℃烘箱中干燥12h,不经预炭化处理直接在马弗炉中350℃焙烧4h得到氧化态固相前驱物。将上述的催化剂压片、破碎成40-60目颗粒,装填到反应器内,通入氢气还原气,并在250℃下对催化剂进行还原处理3h;之后通入甲醇水溶液,并在230℃、0.1 MPa下进行甲醇重整制氢反应。
对比例2
准确称取 13.2g 醋酸铜Cu(CH3COO)2·H2O,26.5g 醋酸铝 Al(CH3COO)3,置于研钵中,研磨 5.0h 后,将产物在空气气氛下,650℃焙烧 6h 后,加石墨 0.63g 打片成型,所得催化剂组成为(质量分数):CuO为42.0%、Al2O3为53.0%、石墨为5.0%。对催化剂进行破碎,取10-14 目 3.0g 装入反应器后,在氮气气氛下(30ml/min)升至 250℃,温度到后,停氮气,开始进料(H2O/CH3OH 摩尔比 =1.0),质量空速1.3 h-1常压下反应。
对比例3
一种甲醇水蒸气重整制氢的复合催化剂,CuO占催化剂总质量的70%,ZnO占催化剂总质量的11%,Al2O3占催化剂总质量的19%,类钙钛矿型复合金属氧化物La2CuO4占催化剂总质量的30%。其通过以下方法进行制备:首先,采用共同沉淀法制备La2CuO4:将摩尔比为2:1的La(NO3)3和Cu(NO3)2的混合水溶液用氨水调节pH,进行共沉淀得到沉淀物;将该沉淀物在60℃干燥12h,在750℃焙烧5h,所得固体适当研磨得到粉末;其次,将该粉末与CuO、ZnO、Al2O3按上述比例放入高能球磨机,以无水乙醇为分散剂,以400r/min的转速研磨40min,得到的混合物经烘干、研磨、压片并造粒,得到复合催化剂,利用上述制备得到的复合催化剂进行甲醇水蒸气重整制氢。
表1各实施例反应条件与结果
表2各实施例物性参数
由表1和2知,通过比较实施例2与对比例1发现,对比例1中催化剂前驱体未进行预炭化,制备的催化剂比表面积较小为53m2/g,将催化剂用于甲醇蒸汽重整制氢的试验中,转化率较低为43.5%。实施例2中制备的催化剂比表面积为80m2/g,将其用于甲醇蒸汽重整制氢的试验中,转化率显著提高为81.6%。因为通过预炭化过程,有利于金属有机物鳌和结构的稳定和分散,避免了活性组分在直接焙烧过程中迁移和长大,制备的催化剂活性更高。
通过比较实施例1、实施例2和实施例3发现,实施例2制备的催化剂的比表面积为80 m2/g,其用于甲醇蒸汽重整制氢的试验中,最终的转化率高达81.6%,与其他糖类对比选用蔗糖制备催化剂效果较好,可能与糖类的羟基比例以及碳原子数相关。
通过比较实施例2、实施例4和实施例5发现,炭化温度在150~200℃范围内均能获得性能较好的催化剂,均能得到活性较好的催化剂,炭化温度为160℃时制备的催化剂性能最好,甲醇转化率能够达到81.6% ,而且其比表面积为80 m2/g、孔容为0.28cm3/g。
通过比较实施例2、实施例6和实施例7发现,随着炭化时间的增加催化剂活性提高,金属的铆定需要确保一定的炭化时间,选取炭化时间为12h作为适宜条件。
从图1-2可以看出,实施例2制备的催化剂分散度好于对比例1的催化剂。
Claims (10)
1.一种用于甲醇蒸汽重整制氢的铜基催化剂,其特征在于该催化剂的组分包括CuO、ZnO和Al2O3,所述催化剂的各组分以摩尔百分比计,Cu为20-70%;Zn为10-60%;Al为1-20%。
2.一种如权利要求1所述的用于甲醇蒸汽重整制氢的铜基催化剂的制备方法,其特征在于以铜盐、锌盐和铝盐为原料,并加入糖类作为螯合物,采用机械球磨法制备,该方法包括具体如下步骤:
1)将铜源、锌源、铝源混合并加入糖类,再经球磨后,得到催化剂前驱体;
2)将1)步骤中得到的催化剂前驱体依次经过干燥、预炭化、焙烧后,即得到用于甲醇蒸汽重整制氢的铜基催化剂。
3.根据权利要求2所述铜基催化剂的制备方法,其特征在于1)步骤中铜源、锌源、铝源中,Cu、Zn、Al的摩尔比为(2-7):(1-6):(1-2)。
4.根据权利要求3所述铜基催化剂的制备方法,其特征在于1)步骤中所述铜源为硝酸铜、醋酸铜中的一种,所述锌源为硝酸锌、醋酸锌中的一种,所述铝源为硝酸铝、拟薄水铝石中的一种。
5.根据权利要求2所述的制备方法,其特征在于1)步骤中铜源、锌源及铝源总摩尔量与糖类摩尔比为1:0.5-2。
6.根据权利要求2所述的制备方法,其特征在于1)步骤中糖类为单糖、二糖或多糖。
7.根据权利要求6所述的制备方法,其特征在于所述的单糖为葡萄糖或果糖;所述二糖为蔗糖、麦芽糖或乳糖;所述多糖为淀粉、淀粉衍生物或离子淀粉,所述的离子淀粉为阴离子淀粉、阳离子淀粉和双性离子淀粉中的至少一种,其特征在于,所述的阴离子淀粉为磷酸酯淀粉和羧甲基淀粉中的至少一种;所述的阳离子淀粉为叔胺烷基醚淀粉和季铵烷基淀粉中的至少一种;所述的双性离子淀粉为氨基磷酸酯淀粉、氨基羧酸酯淀粉和氨基硫酸酯淀粉中的至少一种。
8.根据权利要求2所述的制备方法,其特征在于1)步骤的具体过程如下:在室温下,将铜源、锌源及铝源在球磨罐预混合均匀,然后再加入糖类并转移至球磨机中进行球磨0.5~8h,球磨转速为350-550rpm,球磨结束后即得到催化剂前躯体。
9.根据权利要求2所述的制备方法,其特征在于2)步骤的具体过程如下:将1)步骤得到的催化剂前驱体先进行干燥,干燥结束后对其在惰性气氛下进行预炭化,预炭化结束后在马弗炉中对其进行焙烧,焙烧结束后即得到所要制备的铜基催化剂。
10.根据权利要求9所述的制备方法,其特征在于所述干燥过程在80~110℃下真空干燥2~12h;在惰性气氛下,预炭化过程在150~200℃下,热处理2~12 h;焙烧过程中在马弗炉中焙烧2~12 h,温度为350~550℃。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210603561.5A CN114950443B (zh) | 2022-05-31 | 2022-05-31 | 一种用于甲醇蒸汽重整制氢铜基催化剂及其制备方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202210603561.5A CN114950443B (zh) | 2022-05-31 | 2022-05-31 | 一种用于甲醇蒸汽重整制氢铜基催化剂及其制备方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN114950443A true CN114950443A (zh) | 2022-08-30 |
CN114950443B CN114950443B (zh) | 2024-03-26 |
Family
ID=82958475
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202210603561.5A Active CN114950443B (zh) | 2022-05-31 | 2022-05-31 | 一种用于甲醇蒸汽重整制氢铜基催化剂及其制备方法 |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN114950443B (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116173967A (zh) * | 2022-11-07 | 2023-05-30 | 广东工业大学 | 一种碳封装铜锌铝的催化剂及其制备方法和应用 |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1785513A (zh) * | 2005-09-30 | 2006-06-14 | 复旦大学 | 一种用于甲醇水蒸气重整制氢的纳米铜基催化剂及其制备方法 |
CN102427131A (zh) * | 2011-09-09 | 2012-04-25 | 广州市香港科大霍英东研究院 | 锂离子电池正极材料金属镁掺杂的磷酸锰锂/碳制备方法 |
CN109364917A (zh) * | 2018-09-12 | 2019-02-22 | 浙江工业大学 | 一种氮掺杂炭负载金属催化剂及其制备方法和应用 |
-
2022
- 2022-05-31 CN CN202210603561.5A patent/CN114950443B/zh active Active
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1785513A (zh) * | 2005-09-30 | 2006-06-14 | 复旦大学 | 一种用于甲醇水蒸气重整制氢的纳米铜基催化剂及其制备方法 |
CN102427131A (zh) * | 2011-09-09 | 2012-04-25 | 广州市香港科大霍英东研究院 | 锂离子电池正极材料金属镁掺杂的磷酸锰锂/碳制备方法 |
CN109364917A (zh) * | 2018-09-12 | 2019-02-22 | 浙江工业大学 | 一种氮掺杂炭负载金属催化剂及其制备方法和应用 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN116173967A (zh) * | 2022-11-07 | 2023-05-30 | 广东工业大学 | 一种碳封装铜锌铝的催化剂及其制备方法和应用 |
Also Published As
Publication number | Publication date |
---|---|
CN114950443B (zh) | 2024-03-26 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN101670301A (zh) | 一种加氢用负载型催化剂的制备方法 | |
CN114950443B (zh) | 一种用于甲醇蒸汽重整制氢铜基催化剂及其制备方法 | |
CN112755996A (zh) | 用于二氧化碳加氢合成甲醇的催化剂、制备方法及应用 | |
CN108623436B (zh) | 一种一锅法转化纤维素为生物乙醇的方法 | |
CN113600142A (zh) | 一种成型层状双金属氢氧化物及其衍生物的制备方法和应用 | |
CN111153768A (zh) | 一种异己二醇的合成方法 | |
CN111790431A (zh) | 一种以Al2O3修饰的g-C3N4光催化材料的制备方法 | |
CN111282575A (zh) | 一种用于甲醇水蒸气重整制氢的催化剂及其制备方法和应用 | |
CN114797882A (zh) | 一种环己醇脱氢制环己酮的催化剂及其制备方法和应用 | |
CN103372440B (zh) | 一种合成甲醇催化剂的制备方法 | |
CN112221509B (zh) | 一种高稳定性甲醇合成催化剂的制备方法 | |
CN110860295B (zh) | 一种Fe2O3/Sr2FeTaO6-x光催化剂及其制备方法和应用 | |
CN109529854B (zh) | 一种醋酸加氢制乙醇的非贵金属催化剂及其制法和应用 | |
CN110433813B (zh) | 一种用于二氧化碳加氢合成甲醇的铜铟合金催化剂及其制备方法与应用 | |
CN115999612B (zh) | 榔头珊瑚状Bi2S3/Ni/g-C3N4三元复合材料的制备方法及复合材料的应用 | |
CN107754802B (zh) | 一种用于碳酸乙烯酯加氢的催化剂及制备方法和应用 | |
CN114054055B (zh) | 一种用于负载贵金属催化剂的载体材料及其制备方法 | |
CN114029095B (zh) | 用于高效催化环己醇无氧脱氢制备环己酮的Cu/SiO2催化剂的制备方法及其应用 | |
CN108435182B (zh) | 一种铜系低温变换催化剂的制备方法 | |
CN113522296B (zh) | CO加氢制乙醇CuZn催化剂及其制备方法和应用 | |
CN110038574B (zh) | 一种海泡石衍生的具有尖晶石型结构的催化剂及其制备方法和应用 | |
CN114452990A (zh) | 过渡金属碳化物的制备方法和复合催化剂 | |
CN110479259B (zh) | 一种以氧化钼-氧化锌-氧化锆复合氧化物为载体的负载型Ru基催化剂 | |
CN116803507A (zh) | 一种合金催化剂及其制备方法和应用 | |
CN107486210A (zh) | 一种用于醋酸一步法制乙醇的催化剂及其制备方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
GR01 | Patent grant | ||
GR01 | Patent grant |