CN1356173A - Catalyst for preparing C2 hydrocarbon from transition metal and methane through oxidization and coupling by cocatalysts of S and P elements and its preparing process - Google Patents
Catalyst for preparing C2 hydrocarbon from transition metal and methane through oxidization and coupling by cocatalysts of S and P elements and its preparing process Download PDFInfo
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- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 86
- 239000004215 Carbon black (E152) Substances 0.000 title claims abstract description 23
- 239000003054 catalyst Substances 0.000 title claims abstract description 22
- 229930195733 hydrocarbon Natural products 0.000 title claims abstract description 17
- 150000002430 hydrocarbons Chemical class 0.000 title claims abstract description 17
- 229910052698 phosphorus Inorganic materials 0.000 title claims abstract description 9
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 8
- 238000010168 coupling process Methods 0.000 title claims abstract 8
- 238000005859 coupling reaction Methods 0.000 title claims abstract 8
- 238000000034 method Methods 0.000 title claims description 14
- 229910052723 transition metal Inorganic materials 0.000 title claims description 9
- 150000003624 transition metals Chemical class 0.000 title claims description 9
- 230000008569 process Effects 0.000 title claims description 8
- 230000008878 coupling Effects 0.000 title claims 7
- 238000007254 oxidation reaction Methods 0.000 title claims 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 21
- 229910052726 zirconium Inorganic materials 0.000 claims abstract description 10
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 9
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract description 9
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 7
- 238000005691 oxidative coupling reaction Methods 0.000 claims description 20
- 238000002360 preparation method Methods 0.000 claims description 15
- 150000003839 salts Chemical class 0.000 claims description 14
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 13
- 239000000243 solution Substances 0.000 claims description 12
- 239000005864 Sulphur Substances 0.000 claims description 11
- 239000011572 manganese Substances 0.000 claims description 11
- 229960001866 silicon dioxide Drugs 0.000 claims description 11
- 230000003197 catalytic effect Effects 0.000 claims description 8
- 239000011734 sodium Substances 0.000 claims description 8
- 239000000499 gel Substances 0.000 claims description 7
- 239000001488 sodium phosphate Substances 0.000 claims description 7
- RYFMWSXOAZQYPI-UHFFFAOYSA-K trisodium phosphate Chemical group [Na+].[Na+].[Na+].[O-]P([O-])([O-])=O RYFMWSXOAZQYPI-UHFFFAOYSA-K 0.000 claims description 7
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 claims description 6
- 238000005470 impregnation Methods 0.000 claims description 5
- 229940071125 manganese acetate Drugs 0.000 claims description 5
- UOGMEBQRZBEZQT-UHFFFAOYSA-L manganese(2+);diacetate Chemical compound [Mn+2].CC([O-])=O.CC([O-])=O UOGMEBQRZBEZQT-UHFFFAOYSA-L 0.000 claims description 5
- 239000000741 silica gel Substances 0.000 claims description 5
- 229910002027 silica gel Inorganic materials 0.000 claims description 5
- 229910000406 trisodium phosphate Inorganic materials 0.000 claims description 5
- 235000019801 trisodium phosphate Nutrition 0.000 claims description 5
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical group [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 claims description 4
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims description 4
- 238000013459 approach Methods 0.000 claims description 4
- CMOAHYOGLLEOGO-UHFFFAOYSA-N oxozirconium;dihydrochloride Chemical compound Cl.Cl.[Zr]=O CMOAHYOGLLEOGO-UHFFFAOYSA-N 0.000 claims description 4
- 229910052938 sodium sulfate Inorganic materials 0.000 claims description 4
- 235000011152 sodium sulphate Nutrition 0.000 claims description 4
- 208000006558 Dental Calculus Diseases 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 3
- 238000001354 calcination Methods 0.000 claims description 3
- 238000001879 gelation Methods 0.000 claims description 3
- 239000011574 phosphorus Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 3
- MOMKYJPSVWEWPM-UHFFFAOYSA-N 4-(chloromethyl)-2-(4-methylphenyl)-1,3-thiazole Chemical compound C1=CC(C)=CC=C1C1=NC(CCl)=CS1 MOMKYJPSVWEWPM-UHFFFAOYSA-N 0.000 claims description 2
- CNFDGXZLMLFIJV-UHFFFAOYSA-L manganese(II) chloride tetrahydrate Chemical group O.O.O.O.[Cl-].[Cl-].[Mn+2] CNFDGXZLMLFIJV-UHFFFAOYSA-L 0.000 claims description 2
- 235000019983 sodium metaphosphate Nutrition 0.000 claims description 2
- 229910000162 sodium phosphate Inorganic materials 0.000 claims description 2
- 235000011008 sodium phosphates Nutrition 0.000 claims description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 2
- 239000011593 sulfur Substances 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000003647 oxidation Effects 0.000 claims 6
- 239000002274 desiccant Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 23
- 229910001413 alkali metal ion Inorganic materials 0.000 abstract description 2
- 229910052681 coesite Inorganic materials 0.000 abstract 1
- 229910052906 cristobalite Inorganic materials 0.000 abstract 1
- 239000003607 modifier Substances 0.000 abstract 1
- 229910052682 stishovite Inorganic materials 0.000 abstract 1
- 229910052905 tridymite Inorganic materials 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 5
- 239000012495 reaction gas Substances 0.000 description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910004298 SiO 2 Inorganic materials 0.000 description 3
- 125000003545 alkoxy group Chemical group 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 206010013786 Dry skin Diseases 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- YNQLUTRBYVCPMQ-UHFFFAOYSA-N Ethylbenzene Chemical compound CCC1=CC=CC=C1 YNQLUTRBYVCPMQ-UHFFFAOYSA-N 0.000 description 2
- NBBJYMSMWIIQGU-UHFFFAOYSA-N Propionic aldehyde Chemical compound CCC=O NBBJYMSMWIIQGU-UHFFFAOYSA-N 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000010453 quartz Substances 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 2
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- -1 alkali metal salt Chemical class 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- NZSLBYVEIXCMBT-UHFFFAOYSA-N chloro hypochlorite;zirconium Chemical class [Zr].ClOCl NZSLBYVEIXCMBT-UHFFFAOYSA-N 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 239000003317 industrial substance Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 229910000160 potassium phosphate Inorganic materials 0.000 description 1
- 229940093916 potassium phosphate Drugs 0.000 description 1
- 235000011009 potassium phosphates Nutrition 0.000 description 1
- 239000012716 precipitator Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- 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
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- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
A catalyst for preparing C2 hydrocarbon from methane by oxidizing-coupling reactio uses Zr and Mn as active component, S and P as cocatalyst, alkali-metal ions as modifier and SiO2 as carrier. Its advantages include hdigh conversion rate and selectivity and high output rate (25-26.83%).
Description
Technical field
The present invention relates to methane and directly transform system C
2The Catalysts and its preparation method of hydrocarbon (mainly comprising ethene and ethane) particularly a kind ofly helps catalytic transition metal and methane oxidative coupling system C with sulphur, phosphoric
2Hydrocarbon catalyst and preparation method thereof.
Background technology
Along with the exhaustion day by day of petroleum resources, seeking new substitute energy and industrial chemicals becomes the problem that national governments all pay attention to.Existing explored prospective oil only can be kept 30 years, and equally as the basic raw material of chemical industry, Sweet natural gas is not but well utilized; Be not converted into the more Chemicals of high value.
Recent two decades comes, and the methane oxidative coupling catalyst of having studied reaches kind more than 2000, relates in the periodictable element nearly all except that zero group, if merely with C
2The yield of hydrocarbon is an evaluation index, and these catalyzer all do not obtain result preferably.In recent years, there is the investigator to attempt improving the reaction process of oxidative coupling of methane from the angle of reactor and reaction process, and rare ethene that reaction obtains directly is used to synthesize epoxyethane, propionic aldehyde, ethylbenzene and wet goods derived product, but angle from Technological Economy, owing to have problems such as separation difficulty, still can not compare on the economy with petrochemical complex.Therefore, the improvement catalyzer remains an important directions in the oxidative coupling of methane research.
Oxidative coupling of methane realizes that industrialized key is C
2The raising of hydrocarbon yield, its core are to develop methane oxidative coupling catalyst efficiently.The C of the methane oxidative coupling catalyst of having developed at present,
2Hydrocarbon once through yield great majority carry out analysis revealed below 25% to the oxidative coupling of methane process, are guaranteeing C
2On the basic basis of invariable of hydrocarbon-selective, improve methane conversion and help to improve C
2The hydrocarbon yield.The high conversion of methane can reduce the power consumption of reaction process, improves the utilization ratio of methane, helps promoting the economy of reaction process.
More in the methane oxidative coupling catalyst is alkali and alkaline-earth metal catalyst, the C of this class catalyzer
2Hydrocarbon-selective is generally higher, reach 70～80% usually, but methane conversion is lower, so C
2The hydrocarbon yield is no more than 23%.Some transition-metal catalysts of Recent study have shown good catalytic performance in oxidative coupling of methane, as the Na with precipitator method preparation such as Yoon
4P
2O
7-ZrOCl
2Catalyzer and Na
+-ZrO
2-Cl
-/ SiO
2Catalyzer has good catalytic performance in reaction, wherein the former C
2Selectivity reaches 79%, CH
4Transformation efficiency reaches 28% (C
2Yield ≈ 22% reaches as high as 30%), shortcoming is a less stable, behind reaction 2～3hr, activity of such catalysts obviously descends.Two kinds is respectively the Na of Lanzhou Inst. of Chemical Physics, Chinese Academy of Sciences's exploitation in addition
+-Mn-W/SiO
2The Mn-S/SiO of catalyzer and Zhejiang University's exploitation
2Catalyzer, the both has oxidative coupling of methane activity preferably, the highest C
2Yield reaches 24.1% and 22.3% respectively, it should be noted simultaneously, and the former has added rare gas element in reaction process and dilutes, and increases the separating difficulty of product, and economy is relatively poor; The latter's stability is not high, easily inactivation.
Summary of the invention
The object of the invention provides and a kind ofly helps catalytic transition metal and methane oxidative coupling system C with sulphur, phosphoric
2Hydrocarbon catalyst and preparation method thereof is to solve the problem that exists in the background technology.
Catalyzer provided by the invention is to be major constituent with Mn and two kinds of transition metal of Zr, as cocatalyst, is modification with alkalimetal ion with S, P element, loads on SiO
2On the carrier, the catalyzer of invention contains:
1) at least a alkaline or alkaline-earth salts of 10～35 (mol) %;
2) oxysalt of 0.5～12 (mol) % element sulphur;
3) oxysalt of 0.4～1.0 (mol) % phosphoric;
4) the solubility oxysalt of 0.5～13 (mol) % zr element;
5) soluble salt of 1.0～4.0 (mol) % manganese element;
6) surplus silicon-dioxide.
Wherein used alkaline or alkaline-earth salts is Na
+, K
+, Li
+, Mg
2+And Ca
2+In one or more, wherein with Na
+Effect best; Employed element sulphur oxysalt can be sodium sulfate or vitriolate of tartar or S-WAT, and is best with sodium sulfate; Used phosphoric oxysalt can be trisodium phosphate or sodium phosphate or sodium-metaphosphate, is best with trisodium phosphate; The soluble salt of used manganese can be Manganous chloride tetrahydrate or manganese acetate; The soluble salt of used zirconium is zirconium oxychloride preferably.
Provided by the inventionly help catalytic transition metal and methane oxidative coupling system C with sulphur, phosphoric
2The preparation method of hydrocarbon catalyst in turn includes the following steps:
1) get the silica gel solution that concentration is 20～35% silicon-dioxide, regulating its pH value is 5～9, and preferred pH value is 6～8, and temperature is 10～100 ℃, and preferred temperature is 20～50 ℃;
2) the oxysalt aqueous solution that will contain the alkaline or alkaline-earth salts of requirement and sulfur-bearing, phosphorus adds in the silica gel solution, prepares gel, and the pH value of solution value of gelation process is 8～12, and preferred pH value is 9～10;
3) with step 2) gel of gained is under 60～180 ℃ of temperature, dry 2～12 hours, preferred drying temperature was 100～150 ℃, high-temperature roasting in air then, last cool to room temperature, wherein two-step approach is adopted in high-temperature roasting, and the first step maturing temperature is 400～650 ℃, and preferred maturing temperature is 500～600 ℃, roasting time is 2～4 hours, the second one-step baking temperature is 800～1100 ℃, and preferred maturing temperature is 850～950 ℃, and roasting time is 5～8 hours;
4) manganese of aequum and the soluble salt of zirconium are dissolved with suitable quantity of water, with equivalent impregnation method impregnation steps 3) calcining matter that obtains, the pH value of solution value of steeping process is 8～12, preferred pH value is 9～10;
5) macerate that step 4) is obtained is under 60～180 ℃ of temperature, dry 2～12 hours, preferred drying temperature is 100～150 ℃, high-temperature roasting in air then, and two-step approach is adopted in roasting, the first step maturing temperature is 400～650 ℃, preferred maturing temperature is 500～600 ℃, and roasting time is 2～4 hours, and the second one-step baking temperature is 800～1100 ℃, preferred maturing temperature is 850～950 ℃, and roasting time is 5～8 hours.
Catalyzer of the present invention is implemented by following experimental program:
Atmospheric fixed bed quartz reactor is adopted in experiment.With content is that methane more than 99% and content are the oxygen mix more than 99%, and the mol ratio of methane and oxygen is controlled at 2～4.The gas mixture of methane and oxygen reacts by the beds that is equipped with method for preparing.Temperature of reaction is 750～850 ℃, is the best with 770～800 ℃; Be reflected under the normal pressure and carry out; The reaction gas air speed that converts by standard temperature and pressure (STP) is 0.5 * 10
4～2.5 * 10
4Hour
-1, be preferably 0.7 * 10
4～1.5 * 10
4Hour
-1
The present invention compares the beneficial effect that has and is with background technology: the present invention can effectively improve the activation of methane by the strong oxidizing property of Mn and Zr, promotes the conversion of methane, reduces the temperature of reaction, adds sulphur, phosphorus and an alkali metal salt simultaneously and guarantees C
2The selectivity of hydrocarbon improves C
2The yield of hydrocarbon.And need not add rare gas element in the reactor feed gas, help the industrialization of oxidative coupling of methane.
Embodiment
By the following examples the present invention is described in further detail:
Embodiment 1
This catalyzer contains 21.53mol%Na, 10.43mol%S, 0.15mol%P, 4811mol%Zr and 3.26mol%Mn.Choose the silica gel solution that contains 8 gram silicon-dioxide, regulating the pH value is 9, and temperature is 30 ℃, stirs to add the aqueous solution that contains 0.25 gram yellow soda ash, 1.95 gram S-WATs, 0.52 gram trisodium phosphate down; With the gained gel 130 ℃ of dryings 3 hours, 550 ℃ of roastings 3 hours, 875 ℃ of roastings 5 hours; Is equivalent impregnation gel calcining matter under 10 conditions with the mixing solutionss that contain 1.95 gram zirconium oxychlorides and 0.71 gram manganese acetate in the pH value, again 130 ℃ of dryings 3 hours, and 550 ℃ of roastings 3 hours, 875 ℃ of roastings 5 hours.
The catalyzer of preparation is applied to oxidative coupling of methane.20～40 order 0.5ml catalyzer of screening gained are packed in the quartz reactor of internal diameter 6mm, with methane and oxygen mol ratio be 3 mixed gas continuously by beds, reaction gas air speed (STP) is 8000 hours
-1, be reflected under 790 ℃ of temperature and the normal pressure and carry out.Carry out online detection reaction product by two 102G gas-chromatographies.The result is as shown in table 1.
Table 1
| Temperature of reaction | The reaction gas air speed | The alcoxyl ratio | Methane conversion | C 2Selectivity | C 2Yield | Ethylenic alkoxy rate |
| ℃ | Hour -1 | mol.mol -1 | ％ | ％ | ％ | mol.mol -1 |
| 790 | 8000 | 3∶1 | 37.26 | 69.58 | 25.93 | 1.5 |
Embodiment 2
Preparation process is identical with embodiment 1 with method.This catalyzer contains 11.35mlo%Na, 4.37mol%S, 0.85mol%P, 0.43mol%Zr and 3.67mol%Mn.S adopts sodium sulfate, P to adopt trisodium phosphate, Zr to adopt zirconium oxychloride, Mn to adopt manganese acetate.Getting granularity is that 20～40 purpose catalyzer 0.5ml carry out oxidative coupling of methane, and reaction conditions and result are as shown in table 2.
Table 2
| Temperature of reaction | The reaction gas air speed | The alcoxyl ratio | Methane conversion | C 2Selectivity | C 2Yield | Ethylenic alkoxy rate |
| ℃ | Hour -1 | mol.mol -1 | ％ | ％ | ％ | mol.mol -1 |
| 780 | 8000 | 3∶1 | 35.99 | 74.40 | 26.78 | 3.3 |
Embodiment 3
Preparation process is identical with embodiment 1 with method.This catalyzer contains 21.24mlo%K, 10.52mol%S, 0.16mol%P, 4.08mol%Zr and 2.97mol%Mn.S adopts vitriolate of tartar, P to adopt potassiumphosphate, Zr to adopt zirconium oxychloride, Mn to adopt manganese acetate.Getting granularity is that 20～40 purpose catalyzer 0.5ml carry out oxidative coupling of methane, and reaction conditions and result are as shown in table 3.
Table 3
| Temperature of reaction | The reaction gas air speed | The alcoxyl ratio | Methane conversion | C 2Selectivity | C 2Yield | Ethylenic alkoxy rate |
| ℃ | Hour -1 | mol.mol -1 | ％ | ％ | ％ | mol.mol -1 |
| 770 | 7000 | 3∶1 | 37.79 | 73.50 | 27.78 | 4.7 |
| 800 | 9000 | 5∶1 | 35.86 | 70.55 | 25.30 | 3.0 |
| 830 | 11000 | 3∶1 | 34.68 | 68.96 | 23.15 | 2.2 |
Claims (8)
1. help catalytic transition metal and methane oxidative coupling system C with sulphur, phosphoric
2Hydrocarbon catalyst is characterized in that this catalyzer contains:
1) at least a alkaline or alkaline-earth salts of 10～35 (mol) %;
2) oxysalt of 0.5～12 (mol) % element sulphur;
3) oxysalt of 0.4～1.0 (mol) % phosphoric;
4) the solubility oxysalt of 0.5～13 (mol) % zr element;
5) soluble salt of 1.0～4.0 (mol) % manganese element;
6) surplus silicon-dioxide.
2. by the described methane oxidation coupling system C of claim 1
2Hydrocarbon catalyst is characterized in that said alkaline or alkaline-earth salts is Na
+, K
+, Li
+, Mg
2+, Ca
2+In one or more, the element sulphur oxysalt is sodium sulfate or vitriolate of tartar or S-WAT; The phosphoric oxysalt is trisodium phosphate or sodium phosphate or sodium-metaphosphate; The soluble salt of manganese is Manganous chloride tetrahydrate or manganese acetate; The soluble salt of used zirconium is a zirconium oxychloride.
3. one kind is used for that claim 1 is described to help catalytic transition metal and methane oxidative coupling system C with sulphur, phosphoric
2The preparation method of hydrocarbon catalyst is characterized in that it in turn includes the following steps:
1) get the silica gel solution that concentration is 20～35% silicon-dioxide, regulating its pH value is 5～9, and temperature is 10～100 ℃;
2) the oxysalt aqueous solution that will contain the alkaline or alkaline-earth salts of requirement and sulfur-bearing, phosphorus adds in the silica gel solution, prepares gel, and the pH value of solution value of gelation process is 8～12;
3) with step 2) gel of gained is under 60～180 ℃ of temperature, dry 2～12 hours, high-temperature roasting in air then, last cool to room temperature, wherein two-step approach is adopted in high-temperature roasting, and the first step maturing temperature is 400～650 ℃, and roasting time is 2～4 hours, the second one-step baking temperature is 800～1100 ℃, and roasting time is 5～8 hours;
4) manganese of aequum and the soluble salt of zirconium are dissolved with suitable quantity of water, with equivalent impregnation method impregnation steps 3) calcining matter that obtains, the pH value of solution value of steeping process is 8～12;
5) macerate that step 4) is obtained is under 60～180 ℃ of temperature, dry 2～12 hours, high-temperature roasting in air then, two-step approach is adopted in roasting, the first step maturing temperature is 400～650 ℃, roasting time is 2～4 hours, and the second one-step baking temperature is 800～1100 ℃, and roasting time is 5～8 hours.
4. by the described methane oxidation coupling system C of claim 3
2The preparation method of hydrocarbon catalyst, the pH value that it is characterized in that said step 1) silicon-dioxide sol solution is 6～8, temperature is 20～50 ℃.
5. by the described methane oxidation coupling system C of claim 3
2The preparation method of hydrocarbon catalyst is characterized in that said step 2) the pH value of solution value of gelation process is 9～10.
6. by the described methane oxidation coupling system C of claim 3
2The preparation method of hydrocarbon catalyst, the temperature that it is characterized in that said step 3) desiccant gel is 100～150 ℃, and the first step maturing temperature is 500～600 ℃, and the second one-step baking temperature is 850～950 ℃.
7. by the described methane oxidation coupling system C of claim 3
2The preparation method of hydrocarbon catalyst, the pH value of solution value that it is characterized in that said step 4) steeping process is 9～10.
8. by the described methane oxidation coupling system C of claim 3
2The preparation method of hydrocarbon catalyst is characterized in that the temperature of the dry macerate of said step 5) is 100～150 ℃, and the first step maturing temperature is 500～600 ℃, and the second one-step baking temperature is 850～950 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01142312A CN1125682C (en) | 2001-11-22 | 2001-11-22 | Catalyst for preparing C2 hydrocarbon from transition metal and methane through oxidization and coupling by cocatalysts of S and P elements and its preparing process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01142312A CN1125682C (en) | 2001-11-22 | 2001-11-22 | Catalyst for preparing C2 hydrocarbon from transition metal and methane through oxidization and coupling by cocatalysts of S and P elements and its preparing process |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1356173A true CN1356173A (en) | 2002-07-03 |
| CN1125682C CN1125682C (en) | 2003-10-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01142312A Expired - Fee Related CN1125682C (en) | 2001-11-22 | 2001-11-22 | Catalyst for preparing C2 hydrocarbon from transition metal and methane through oxidization and coupling by cocatalysts of S and P elements and its preparing process |
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| Country | Link |
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| CN (1) | CN1125682C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325164C (en) * | 2004-08-20 | 2007-07-11 | 东南大学 | Manganese series methane oxidation coupling catalyst using multicomponent promoter and its preparation method |
| CN114618566A (en) * | 2020-12-09 | 2022-06-14 | 中国石油化工股份有限公司 | Ti-beta molecular sieve catalyst and preparation method and application thereof |
| WO2022191000A1 (en) * | 2021-03-08 | 2022-09-15 | 三菱重工業株式会社 | Olefin production device and olefin production method |
| CN115487840A (en) * | 2021-06-18 | 2022-12-20 | 中国石油化工股份有限公司 | Preparation method and application of catalyst containing lanthanum oxycarbonate |
| CN115591563A (en) * | 2022-10-08 | 2023-01-13 | 华东师范大学（Cn） | Catalyst suitable for fluidized bed to perform methane oxidation coupling reaction and preparation method and application thereof |
| CN115591564A (en) * | 2021-07-09 | 2023-01-13 | 中国石油化工股份有限公司（Cn） | Method for producing shaped methane oxidative coupling catalysts, catalysts and their use, and method for producing carbo-hydrocarbons |
-
2001
- 2001-11-22 CN CN01142312A patent/CN1125682C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1325164C (en) * | 2004-08-20 | 2007-07-11 | 东南大学 | Manganese series methane oxidation coupling catalyst using multicomponent promoter and its preparation method |
| CN114618566A (en) * | 2020-12-09 | 2022-06-14 | 中国石油化工股份有限公司 | Ti-beta molecular sieve catalyst and preparation method and application thereof |
| WO2022191000A1 (en) * | 2021-03-08 | 2022-09-15 | 三菱重工業株式会社 | Olefin production device and olefin production method |
| CN115487840A (en) * | 2021-06-18 | 2022-12-20 | 中国石油化工股份有限公司 | Preparation method and application of catalyst containing lanthanum oxycarbonate |
| CN115487840B (en) * | 2021-06-18 | 2024-05-07 | 中国石油化工股份有限公司 | Preparation method and application of lanthanum oxide carbonate-containing catalyst |
| CN115591564A (en) * | 2021-07-09 | 2023-01-13 | 中国石油化工股份有限公司（Cn） | Method for producing shaped methane oxidative coupling catalysts, catalysts and their use, and method for producing carbo-hydrocarbons |
| CN115591564B (en) * | 2021-07-09 | 2024-02-13 | 中国石油化工股份有限公司 | Method for producing shaped methane oxidative coupling catalysts, use thereof and method for producing carbon dioles |
| CN115591563A (en) * | 2022-10-08 | 2023-01-13 | 华东师范大学（Cn） | Catalyst suitable for fluidized bed to perform methane oxidation coupling reaction and preparation method and application thereof |
| CN115591563B (en) * | 2022-10-08 | 2024-04-23 | 华东师范大学 | Catalyst suitable for fluidized bed methane oxidative coupling reaction and preparation method and application thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1125682C (en) | 2003-10-29 |
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