CN115228504A - Supported Mo catalyst and application thereof - Google Patents
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- CN115228504A CN115228504A CN202210113658.8A CN202210113658A CN115228504A CN 115228504 A CN115228504 A CN 115228504A CN 202210113658 A CN202210113658 A CN 202210113658A CN 115228504 A CN115228504 A CN 115228504A
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- 239000003054 catalyst Substances 0.000 title claims abstract description 71
- LSDPWZHWYPCBBB-UHFFFAOYSA-N Methanethiol Chemical compound SC LSDPWZHWYPCBBB-UHFFFAOYSA-N 0.000 claims abstract description 46
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 14
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 14
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 13
- 239000011733 molybdenum Substances 0.000 claims abstract description 13
- 239000002243 precursor Substances 0.000 claims abstract description 10
- 238000001035 drying Methods 0.000 claims abstract description 9
- 238000007873 sieving Methods 0.000 claims abstract description 9
- 238000010298 pulverizing process Methods 0.000 claims abstract description 5
- 239000011159 matrix material Substances 0.000 claims abstract description 3
- 238000002791 soaking Methods 0.000 claims abstract description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 7
- 239000011593 sulfur Substances 0.000 claims description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 2
- 150000002751 molybdenum Chemical class 0.000 claims 1
- 229910018072 Al 2 O 3 Inorganic materials 0.000 abstract description 20
- 238000009776 industrial production Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 description 16
- 238000006243 chemical reaction Methods 0.000 description 13
- 239000007789 gas Substances 0.000 description 13
- 230000003197 catalytic effect Effects 0.000 description 12
- 239000000463 material Substances 0.000 description 12
- 230000000694 effects Effects 0.000 description 11
- 238000011049 filling Methods 0.000 description 9
- 239000008367 deionised water Substances 0.000 description 5
- 229910021641 deionized water Inorganic materials 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000012378 ammonium molybdate tetrahydrate Substances 0.000 description 4
- FIXLYHHVMHXSCP-UHFFFAOYSA-H azane;dihydroxy(dioxo)molybdenum;trioxomolybdenum;tetrahydrate Chemical compound N.N.N.N.N.N.O.O.O.O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O[Mo](O)(=O)=O.O[Mo](O)(=O)=O.O[Mo](O)(=O)=O FIXLYHHVMHXSCP-UHFFFAOYSA-H 0.000 description 4
- 238000005470 impregnation Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000012495 reaction gas Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 239000000969 carrier Substances 0.000 description 3
- 239000003153 chemical reaction reagent Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000002194 synthesizing effect Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- AFVFQIVMOAPDHO-UHFFFAOYSA-N Methanesulfonic acid Chemical compound CS(O)(=O)=O AFVFQIVMOAPDHO-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 238000001354 calcination Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000011068 loading method Methods 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- FFEARJCKVFRZRR-BYPYZUCNSA-N L-methionine Chemical compound CSCC[C@H](N)C(O)=O FFEARJCKVFRZRR-BYPYZUCNSA-N 0.000 description 1
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical group [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
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 239000013461 intermediate chemical Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229940098779 methanesulfonic acid Drugs 0.000 description 1
- 229930182817 methionine Natural products 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910052961 molybdenite Inorganic materials 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 150000002898 organic sulfur compounds Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000027756 respiratory electron transport chain Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
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Classifications
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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
- B01J29/03—Catalysts comprising molecular sieves not having base-exchange properties
- B01J29/0308—Mesoporous materials not having base exchange properties, e.g. Si-MCM-41
- B01J29/0341—Mesoporous materials not having base exchange properties, e.g. Si-MCM-41 containing arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
- C07C319/02—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of thiols
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Catalysts (AREA)
Abstract
The invention discloses a supported Mo catalyst, which is prepared by reacting gamma-Al 2 O 3 Soaking the matrix material in molybdenum precursor solution, drying, roasting, tabletting, pulverizing, sieving, and introducing H 2 ‑H 2 S gas is heated to prepare a supported Mo catalyst; the catalyst prepared by the invention can complete the synthesis of methyl mercaptan without K promotion, is simple to prepare, has low cost, and is suitable for industrial production and market popularization and application.
Description
Technical Field
The invention belongs to the technical field of catalysts, and particularly relates to a supported Mo catalyst and application thereof.
Background
The problems of air pollution are: haze, acid rain, etc. have been gradually drawing attention, and reductive sulfur species (H) generated in industrial applications 2 S、CS 2 COS) is the "main culprit" for such atmospheric problems. At present, the treatment method for hydrogen sulfide at home and abroad mainly comprises the following steps: solution absorption, claus and modified claus processes, and the like. And by catalytic oxidation of H by the Claus process 2 S obtaining sulphur, sulphuric acid or SO 2 And the added value of the product is lower. Methyl mercaptan is an important chemical intermediate and industrial chemical, and can be used for producing high-value organic sulfur compounds, such as methionine, methane sulfonic acid and the like. In recent years, the ratio of CO/H has been used 2 S/H 2 The representative method for synthesizing methyl mercaptan from high-sulfur mixed gas in one step is gradually attracting the interest of partial scholars. The method can not only treat sulfur-containing gas (H) 2 S) resource utilization, and the methyl mercaptan with high added value can be obtained, so that the method has a wide application prospect.
In a high-sulfur gas mixture (CO + H) 2 S+H 2 ) During the research process of synthesizing methyl mercaptan by one-step method, the reactive species and the reaction path thereof are always the main problems troubling researchers. Through years of research, the reaction path is mainly CO + H 2 S synthesis of COS, COS disproportionation to CS 2 By COS or CS 2 The methyl mercaptan is synthesized by hydrogenation, and in the reaction process, the proposed K-Mo-S phase (namely MoS which must be promoted by alkali metal) 2 Phase) is a reactive active phase accepted by most researchers, but the catalytic activity of the active phase cannot be further improved all the time by further optimizing the active phase, and the problem of the active phase belonging to the reaction system is still not well solved.
Therefore, it is an urgent technical problem to search for the active phase and active species of the reaction and further improve the catalytic activity of the catalyst.
Disclosure of Invention
The invention provides a supported Mo catalyst, which is prepared by reacting gamma-Al 2 O 3 Soaking the matrix material in molybdenum precursor solution, drying, roasting, tabletting, pulverizing, sieving, and passing throughInto H 2 -H 2 And (4) heating the S gas to prepare the supported Mo catalyst.
The supported Mo catalyst of the invention is prepared as follows:
(1) Dissolving a molybdenum precursor in deionized water, and loading the molybdenum precursor on SBA-15 and gamma-Al by using an incipient wetness impregnation method 2 O 3 Standing for 12 hours, then placing in an oven, and drying for 4 to 12h at 90 ℃;
(2) Placing the material in the step (1) in a muffle furnace, roasting at 550 ℃ for 4-12h, cooling, tabletting, crushing and sieving the material;
(3) Putting the material in the step (2) into a reaction tube, and introducing H 2 /H 2 S mixed gas (H) 2 And H 2 S is prepared by mixing according to the volume ratio of 8-10.
The molybdenum precursor is ammonium molybdate;
the theoretical load of molybdenum in the molybdenum-containing catalyst is 10 to 20 percent.
The materials are crushed and sieved to prepare materials of 40 to 60 meshes.
Introduction of H 2 -H 2 The gas flow rate of S is 10 to 60mL/min; the temperature raising and vulcanizing treatment is carried out under the condition that the temperature is raised to 400-450 ℃ at the temperature raising rate of 1-5 ℃/min, and if the vulcanizing temperature is too high, the material structure can be damaged, and the catalytic activity is influenced.
The invention also aims to apply the supported Mo catalyst to the synthesis of methyl mercaptan from high-sulfur synthesis gas.
Compared with the prior art, the invention has the following beneficial effects:
the molybdenum-containing catalysts loaded on different carriers prepared by the invention show completely different catalytic activities, and a new idea is provided for the problem of active sites of the reaction. By loading molybdenum metal on carriers (SBA-15, gamma-Al) with different acting forces 2 O 3 ) After the high-temperature vulcanization treatment, the obtained catalyst shows different catalytic activities. The material loaded on SBA-15 is difficult to synthesize methyl mercaptan in the synthesis atmosphere, and the material is loaded on gamma-Al 2 O 3 Of the materials (a) is higherCatalytic activity by XRD and H 2 TPR tests on the structure and properties of the material find that alumina, due to its strong interaction, disperses Mo species well, which helps them exert catalytic activity.
Drawings
FIG. 1 shows Mo/Al 2 O 3 Graph comparing activity of catalyst to Mo/SBA-15 catalyst;
FIG. 2 shows MoS 2 、Al 2 O 3 And Mo/Al 2 O 3 Activity of the catalyst is compared;
FIG. 3 is a graph comparing the activity of Mo/SBA-15 catalyst with that of K-Mo/SBA-15 catalyst;
FIG. 4 shows Mo/Al 2 O 3 XRD contrast of catalyst to Mo/SBA-15 catalyst;
FIG. 5 shows Mo/Al 2 O 3 H of catalyst and Mo/SBA-15 catalyst 2 TPR contrast plot.
Detailed Description
The present invention is further illustrated in detail by the following examples, but the scope of the present invention is not limited thereto, wherein the methods are all conventional methods unless otherwise specified, and the reagents are all conventional reagents or reagents formulated by conventional methods unless otherwise specified;
example 1
Adopting an isovolumetric immersion method, 0.9182g of ammonium molybdate tetrahydrate is taken as a precursor and dissolved in 4.5mL of deionized water, and 3g of gamma-Al is added 2 O 3 Stirring to fully mix, standing for 12H, drying in a 90 ℃ oven for 6H, then roasting in a muffle furnace (5 ℃/min) at 550 ℃ for 5H, tabletting, crushing, sieving to obtain 40-60 mesh catalyst, filling 0.8g of catalyst into a reactor, introducing H, and drying 2 -H 2 S gas (9 2 O 3 。
Simultaneously using Mo/SBA-15 catalyst, K-Mo/SBA-15 and commercial MoS 2 Alumina catalyst as control;
the Mo/SBA-15 catalyst was prepared as follows: by adopting an equal volume immersion method, 0.9182Dissolving ammonium molybdate tetrahydrate g serving as a precursor in 12.9mL of deionized water, adding 3g of SBA-15, stirring until the mixture is fully mixed, standing for 12H, drying in a 90 ℃ oven for 6H, then roasting in a muffle furnace (5 ℃/min) at 550 ℃ for 5H, tabletting, crushing, sieving to obtain a catalyst with the particle size of 40-60 meshes, filling 0.8g of the catalyst into a reactor, and introducing H 2 -H 2 S gas (9.
The K-Mo/SBA-15 catalyst was prepared as follows: 0.9182g of ammonium molybdate tetrahydrate and 0.8008g of anhydrous K are impregnated by an isovolumetric impregnation method 2 CO 3 Respectively dissolving in 12.9mL deionized water, adding 3g SBA-15, stirring, standing for 12H, drying in a 90 deg.C oven for 6H, calcining at 550 deg.C in a muffle furnace (5 deg.C/min) for 5H, tabletting, pulverizing, sieving with 40-60 mesh catalyst, filling 0.8g catalyst into a reactor, introducing H 2 -H 2 S gas (9;
using commercial MoS2 as catalyst (marked as MoS) 2 ）。
Commercial alumina catalysts were prepared by reacting gamma-Al 2 O 3 Calcining the powder at 550 deg.C for 5 hr in muffle furnace (5 deg.C/min), tabletting, pulverizing, sieving with 40-60 mesh catalyst, filling 0.8g of catalyst into reactor, and introducing H 2 -H 2 S gas (9 2 O 3 ）。
The activity test of the molybdenum-containing catalyst is carried out, and the specific method comprises the following steps:
filling the prepared molybdenum-containing catalyst into reaction gas of a fixed bed, wherein the filling mass is 0.4g, and introducing CO/H 2 S/H 2 Mixed reaction gas of CO and H 2 S:H 2 =1:5:4，H 2 The volume concentration of S is 500000ppm, and the space velocity of feeding is 2400h -1 The pressure of the reaction system is 0.2MPa, and the reaction temperature is increased from 200 ℃ to 4 DEG CThe results of the reaction of one-step synthesis of methyl mercaptan from the gas mixture at 00 ℃ are shown in FIGS. 1 to 4.
FIG. 1 shows Mo/Al 2 O 3 A comparison of the activity of the catalyst with that of the Mo/SBA-15 catalyst shows, in FIG. 1, the Mo/Al in example 1 2 O 3 The catalyst shows excellent catalytic activity, reaches the maximum at 350 ℃, and reaches the synthetic methyl mercaptan rate of 0.00149mol at 350 DEG C (methyl mercaptan) mol -1 (catalyst) s -1 (ii) a The Mo/SBA-15 catalyst shows little activity for synthesizing methyl mercaptan in the whole temperature range. The former scholars thought that methyl mercaptan, moS, was synthesized under this system 2 For the reactive phase, the addition of metals only promotes the reactivity, but Mo/Al 2 O 3 And both Mo/SBA-15 materials have MoS 2 The phases, but the catalytic phenomena, are quite different, so the reactivity is linked to the synergy between the Mo-S phase and the active support.
FIG. 2 is a commercial MoS 2 、Al 2 O 3 And Mo/Al 2 O 3 The activity of the catalysts is compared and it can be seen from FIG. 2 that MoS alone 2 And Al 2 O 3 When present, the rate of methyl mercaptan synthesis is very low or even nearly zero, with Al present alone 2 O 3 The methyl mercaptan synthesis rate is only 0.00012mol at 400 DEG C (methyl mercaptan) mol -1 (catalyst) s -1 And MoS 2 Almost none, mo/Al is synthesized by the impregnation method in the two-phase material 2 O 3 The synthesis rate of the methyl mercaptan is obviously improved in the presence of the catalyst, so that the main factor influencing the reaction is attributed to the synergistic effect of the two phases to efficiently synthesize the methyl mercaptan.
FIG. 3 is a graph comparing the activity of Mo/SBA-15 catalyst with that of K-Mo/SBA-15 catalyst, and it can be seen from FIG. 3 that Mo/SBA-15 catalyst has no catalytic activity although Mo-S exists because of the existence of K-Mo-S phase showing good catalytic activity, which indicates that MoS alone is on SBA-15 carrier 2 Can not be active centers of the reaction, only after the addition of the alkali metal K, mo is enhancedThe electron transfer effect between S and the carrier can exert corresponding catalytic effect, and the metal active component is not only a single factor for the function of the catalyst.
FIG. 4 shows Mo/Al 2 O 3 The XRD patterns of the catalyst and the Mo/SBA-15 catalyst are compared, and as can be seen from FIG. 5, the structure of different supported catalysts loaded with Mo is obviously different. No significant MoS was present in the Mo/SBA-15 catalyst 2 Peak of phase, in Mo/Al 2 O 3 The obvious MoS appears in the catalyst 2 Peak shape.
As can be seen from the above results, moS is caused by the difference in the acting force between the carriers 2 Significant differences in dispersion and size on the support occurred, resulting in differences in activity.
FIG. 5 is Mo/Al 2 O 3 H of catalyst and Mo/SBA-15 catalyst 2 TPR test results, it can be seen from FIG. 4 that MoS appears at 260 ℃ when Mo is supported on SBA-15 carrier 2 Reduction peak of S species at edge, and load on Al 2 O 3 The reduction peak of the catalyst above appears at 445 ℃ because of Al 2 O 3 The reduction temperature shifts to a high temperature because of a stronger metal carrier force.
Example 2: mo/Al 2 O 3 Catalyst catalyzed synthesis of methyl mercaptan
Adopting an isovolumetric impregnation method, 0.6487g ammonium molybdate tetrahydrate is taken as a precursor and dissolved in 4.5mL deionized water, and 3g gamma-Al is added 2 O 3 Stirring to mix thoroughly, standing for 12H, drying in an oven at 90 ℃ for 6H, then roasting in a muffle furnace (5 ℃/min) at 550 ℃ for 5H, tabletting, crushing, sieving to obtain 40-60 mesh catalyst, filling 0.8g of catalyst into a reactor, introducing H 2 -H 2 S gas (8 2 O 3 ；
Filling the prepared molybdenum-containing catalyst into reaction gas of a fixed bed, wherein the filling mass is 0.4g, and introducing CO/H 2 S/H 2 Mixed reaction gas of CO and H 2 S:H 2 =1:5:4，H 2 The volume concentration of S is 500000ppm, and the feeding space velocity is 3000h -1 The pressure of a reaction system is 0.2MPa, the methyl mercaptan is synthesized at the temperature of 350 ℃, and the synthesis rate of the methyl mercaptan is 0.00117mol (methyl mercaptan) mol -1 (catalyst) s -1 。
The above description is intended to be illustrative of the present invention and should not be taken as limiting the invention, as the invention is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.
Claims (6)
1. A supported Mo catalyst characterized by: gamma-Al is mixed 2 O 3 Soaking the matrix material in molybdenum precursor solution, drying, roasting, tabletting, pulverizing, sieving, and introducing H 2 -H 2 And (4) heating the S gas to obtain the supported Mo catalyst.
2. The supported Mo catalyst of claim 1, wherein: the molybdenum precursor is soluble molybdenum salt.
3. The supported Mo catalyst of claim 1, wherein: h 2 -H 2 S gas is H 2 And H 2 S is prepared by mixing according to the volume ratio of 8-10.
4. The supported Mo catalyst of claim 1, wherein: in the heating treatment, the temperature is raised to 400-450 ℃ at the heating rate of 1-10 ℃/min for treatment for 4-6h.
5. Use of the supported Mo catalyst of claim 1 in the synthesis of methyl mercaptan from high sulfur syngas.
6. Use according to claim 5, characterized in that: the high-sulfur synthesis gas contains CO and H 2 S、H 2 Mixed gas ofWherein the volume concentration of CO is 100000-800000ppm 2 The volume concentration of S is 100000-800000ppm 2 The volume concentration is 100000-800000ppm; the airspeed of the mixed gas is 1000-10000h -1 (ii) a The synthesis is carried out at a temperature of 200-400 ℃.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1207957A (en) * | 1998-09-10 | 1999-02-17 | 厦门大学 | Catalyst for synthesizing methyl mercaptan from synthesized gas contg. hydrogen sulfide |
| CN101143329A (en) * | 2006-09-11 | 2008-03-19 | 德古萨股份公司 | Mo-O-K base catalyst, its preparation method and application in synthesizing methyl mercaptan |
| US20090054691A1 (en) * | 2005-09-10 | 2009-02-26 | Hubert Redlingshofer | Process for preparing methyl mercaptan |
| CN106111163A (en) * | 2016-06-17 | 2016-11-16 | 天津大学 | A kind of molybdenum sulfide catalyst of support type high dispersive and preparation method thereof |
-
2022
- 2022-01-30 CN CN202210113658.8A patent/CN115228504A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1207957A (en) * | 1998-09-10 | 1999-02-17 | 厦门大学 | Catalyst for synthesizing methyl mercaptan from synthesized gas contg. hydrogen sulfide |
| US20090054691A1 (en) * | 2005-09-10 | 2009-02-26 | Hubert Redlingshofer | Process for preparing methyl mercaptan |
| CN101143329A (en) * | 2006-09-11 | 2008-03-19 | 德古萨股份公司 | Mo-O-K base catalyst, its preparation method and application in synthesizing methyl mercaptan |
| CN106111163A (en) * | 2016-06-17 | 2016-11-16 | 天津大学 | A kind of molybdenum sulfide catalyst of support type high dispersive and preparation method thereof |
Non-Patent Citations (2)
| Title |
|---|
| MIAO YU, ET AL: "Alkali catalyzes methanethiol synthesis from CO and H2S", JOURNAL OF CATALYSIS, vol. 403, pages 117 * |
| MIAO YU: "Catalytic synthesis of methanethiol and its conversion to light olefins", TECHNISCHE UNIVERSITEIT EINDHOVEN: CHEMICAL ENGINEERING AND CHEMISTRY[PHD], pages 2 * |
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