CN1056096C - Carbonyl sulfide hydrolysis catalyst and preparation method thereof - Google Patents
Carbonyl sulfide hydrolysis catalyst and preparation method thereof Download PDFInfo
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- CN1056096C CN1056096C CN94110471A CN94110471A CN1056096C CN 1056096 C CN1056096 C CN 1056096C CN 94110471 A CN94110471 A CN 94110471A CN 94110471 A CN94110471 A CN 94110471A CN 1056096 C CN1056096 C CN 1056096C
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- 239000003054 catalyst Substances 0.000 title claims abstract description 55
- 238000002360 preparation method Methods 0.000 title claims description 6
- JJWKPURADFRFRB-UHFFFAOYSA-N carbonyl sulfide Chemical compound O=C=S JJWKPURADFRFRB-UHFFFAOYSA-N 0.000 title abstract description 9
- 230000007062 hydrolysis Effects 0.000 title description 5
- 238000006460 hydrolysis reaction Methods 0.000 title description 5
- 238000000034 method Methods 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 5
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 23
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 16
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 15
- 239000002253 acid Substances 0.000 claims description 10
- 239000002994 raw material Substances 0.000 claims description 8
- 229910010413 TiO 2 Inorganic materials 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 239000011148 porous material Substances 0.000 claims description 5
- 150000007524 organic acids Chemical class 0.000 claims description 4
- 229910001593 boehmite Inorganic materials 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 3
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 claims description 3
- 150000007522 mineralic acids Chemical class 0.000 claims description 3
- 238000012986 modification Methods 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 2
- 235000003301 Ceiba pentandra Nutrition 0.000 claims description 2
- 244000146553 Ceiba pentandra Species 0.000 claims description 2
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 2
- 229920005610 lignin Polymers 0.000 claims description 2
- 229920000609 methyl cellulose Polymers 0.000 claims description 2
- 235000010981 methylcellulose Nutrition 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- 239000001254 oxidized starch Substances 0.000 claims description 2
- 235000013808 oxidized starch Nutrition 0.000 claims description 2
- 239000000853 adhesive Substances 0.000 claims 5
- 230000001070 adhesive effect Effects 0.000 claims 5
- 238000000465 moulding Methods 0.000 claims 2
- 102000004190 Enzymes Human genes 0.000 claims 1
- 108090000790 Enzymes Proteins 0.000 claims 1
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims 1
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims 1
- 229920002472 Starch Polymers 0.000 claims 1
- 239000001913 cellulose Substances 0.000 claims 1
- 229920002678 cellulose Polymers 0.000 claims 1
- 229920006184 cellulose methylcellulose Polymers 0.000 claims 1
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims 1
- 239000001923 methylcellulose Substances 0.000 claims 1
- 239000008107 starch Substances 0.000 claims 1
- 235000019698 starch Nutrition 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 22
- 230000000694 effects Effects 0.000 abstract description 14
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 abstract description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract description 9
- 230000003301 hydrolyzing effect Effects 0.000 abstract description 6
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 abstract description 2
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 abstract description 2
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 238000001035 drying Methods 0.000 description 11
- 239000007864 aqueous solution Substances 0.000 description 9
- 235000015165 citric acid Nutrition 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 8
- 150000007513 acids Chemical class 0.000 description 7
- 238000005303 weighing Methods 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 206010013786 Dry skin Diseases 0.000 description 3
- MUBZPKHOEPUJKR-UHFFFAOYSA-N Oxalic acid Chemical compound OC(=O)C(O)=O MUBZPKHOEPUJKR-UHFFFAOYSA-N 0.000 description 3
- 239000003607 modifier Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 244000275012 Sesbania cannabina Species 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000005470 impregnation Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 238000012805 post-processing Methods 0.000 description 2
- 230000003252 repetitive effect Effects 0.000 description 2
- 229910052708 sodium Inorganic materials 0.000 description 2
- 230000019635 sulfation Effects 0.000 description 2
- 238000005670 sulfation reaction Methods 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052783 alkali metal Inorganic materials 0.000 description 1
- 150000008044 alkali metal hydroxides Chemical class 0.000 description 1
- 150000001340 alkali metals Chemical class 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006396 nitration reaction Methods 0.000 description 1
- 235000006408 oxalic acid Nutrition 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- JOKPITBUODAHEN-UHFFFAOYSA-N sulfanylideneplatinum Chemical compound [Pt]=S JOKPITBUODAHEN-UHFFFAOYSA-N 0.000 description 1
- 230000002277 temperature effect Effects 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000001131 transforming effect Effects 0.000 description 1
- 229910000314 transition metal oxide Inorganic materials 0.000 description 1
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Abstract
A catalyst for hydrolyzing carbonyl sulfide (COS) at ordinary temp in petrochemical process, especially in methanol, synthetic gas and propylene industries is composed of gamma Al2O398.5～55%(m\m)，TiO21-20% (m/m), 0.5-25% (m/m) KOH, has a particularly high low-temperature activity, a conversion rate of more than 98% at 50 ℃, and has particularly high activity stability and a particularly long service life.
Description
The invention belongs to a kind of hydrolytic catalyst of carbonyl sulfur and preparation method in the petrochemical industry, is a kind of normal temperature hydrolytic catalyst of carbonyl sulfur.
Background of invention:
It in the industry such as synthetic ammonia, methyl alcohol is in the synthesis gas of raw material gas making with coal, coke, heavy oil that cos (COS) extensively is present in, and also is present in simultaneously in the hydrocarbon raw material such as propylene.Its existence has caused murder by poisoning to the downstream catalyst in the production process as methanol synthesis catalyst, polypropylene catalyst etc., has influenced the serviceability of downstream catalyst, for this reason, has developed the method for the multiple COS of removing.What wherein have practical value most is COS constant temperature catalyzing agent technology for hydrolyzing, and it is at normal temperatures, under the effect of hydrolyst, earlier COS is converted into the inorganic sulphide H that removes easily
2S, and then remove H with conventional desulfurizing agent
2S, thus reach the purpose of organic sulfide removal COS.
U.S. Pat P4,444,987 and USP4,455,446 disclose a kind of activated alumina uploads the cost height that the shortcoming of this catalyst of catalyst of platinum sulfide is a catalyst, and needs regular regeneration, and general factory seldom uses.
U.S. Pat P3,265,757 disclose a kind of normal temperature COS hydrolyst, and this catalyst is to be uploaded 0.5%～3.0% Na by activated alumina
2O or K
2O forms.Japan Patent JP63,224,736 disclose a kind of catalyst, and it is to upload 1%～115% Na at activated alumina
2O or K
2O, and baking temperature prepares under 110～130 ℃ of conditions, and serviceability temperature is more than 100 ℃.
U.S. Pat P4,491,516 and 0,195 534 of European patent EP invented a kind of activated alumina of any auxiliary agent that do not add as the COS hydrolyst.
Chinese patent CN1069673 discloses a kind of normal tempreture organic sulphur hydrolysis catalyst, and it is at γ-Al
2O
3Ball is uploaded 2%～25% K
2CO
3, form through＜120 ℃ of dryings.℃ COS content 1～5mg/m in room temperature～50
3, air speed 2000h
-1Under the condition, COS hydrolysis conversion＞95%.
The advantage that all these activated aluminas or activated alumina are uploaded alkali metal hydroxide and alkali carbonate is that cost is low, the shortcoming of pure activated alumina catalyst is that low temperature active is poor, and the shortcoming of carrying the alkali metal activated alumina catalyst is that activity stability is poor, easily inactivation.And above-mentioned catalyst only is applicable to low COS unstripped gas, and general COS content is at 1～10ppm, and to the raw material of high COS content, activity of conversion is lower.
Purpose of the present invention, just be further to improve the low temperature active of COS hydrolyst, increase activity of such catalysts stability, simultaneously, widen the scope of intending desulfurization (COS) unstripped gas, and the life-span is long, is applicable to the raw material of different COS content, in particular for the COS hydrolyst of the raw material that removes high COS content.
The invention narration:
On the basis of having furtherd investigate normal temperature COS hydrolytic process, we think that the reason of catalyst activity decay mainly is because due to the surperficial sulfation, carrier is carried out modification can obviously prolong activity of such catalysts by adding suitable transition metal oxide, suppress the sulfation process, used TiO among the present invention
2, ZrO
2As modifier, reached its intended purposes Deng material, do not had in this former normal temperature COS hydrolyst.In addition, improve the conversion capability of catalyst to high-load COS, we think that key is that catalyst will have suitable pore passage structure, are beneficial to the transmitting effect of COS, and we have used special gelatinizing agent in the present invention, have reached this purpose.The present invention has determined the type and the content of active component also by test.
Specifically, the present invention is made up of preparing carriers, activity component impregnation and post processing three parts.
Carrier is made up of boehmite, modifier, pore creating material and gelatinizing agent four parts.By common practices through extrusion, drying, roasting and make.Alumina content is 80%～99% in the finished product carrier; Said modifier is TiO
2, ZrO
2Deng, TiO preferably
2, its consumption accounts for 1%～20% of finished product carrier.
Said inorganic acid is a nitric acid, organic acid such as formic acid, acetate, oxalic acid, citric acid etc., preferably inorganic acid and organic acid mixture be as gelatinizing agent, and the citric acid preferably of the organic acid in the nitration mixture, its consumption be raw material form 0.5%～15%.
The baking temperature of carrier is 100～150 ℃, and sintering temperature is 500～700 ℃
Active component of the present invention is KOH or NaOH, and its consumption accounts for 0.5%～25% of whole catalyst, adopts solution dipping method to be downloaded on the above-mentioned carrier.Preferably select for use KOH as active component, the optimum amount scope is 5%～20%.
The 3rd step of Preparation of Catalyst is post processing, and is promptly dry, is lower than at baking temperature under 100 ℃ the condition, dryly promptly gets catalyst of the present invention more than 10 hours.
The composition of catalyst of the present invention is: AL
2O
398.5%～55% (m/m)
TiO
2 0.1％～20％(m/m)
KOH 0.5％～25％(m/m)
The effect of invention:
Made up by above three parts, we have prepared all good COS ordinary-temp hydrolysis catalyst of a kind of low temperature active, activity stability, and this catalyst has the better conversion activity to high COS raw material, are a kind of novel COS ordinary-temp hydrolysis catalyst.This catalyst compares with the catalyst EH-1Q that the catalyst P 2312 for preparing by patent 3,265,757 reaches by patent CN1069673A preparation, and the result is as follows.
Air speed influence test
Get P2312, EH-IQ and each 0.5ml of catalyst of the present invention, granularity 40～60 orders, the internal diameter of packing into are in the glass reactor of Ф 4mm, use COS/H
2Do reaction medium, behind the water saturation device, water content about 2% is analyzed 50 ℃ of reaction temperatures with WLSP852 emblem amount sulphur analyzer to COS content in the gas before and after the reaction.Result such as table one expression.
Table one: change the influence of gas space velocity to conversion ratio
As seen, under all air speeds, the conversion ratio of catalyst of the present invention all is higher than the conversion ratio of P2312 and EH-IQ.
| Air speed h-1 | P2312 | EH-1Q | Catalyst of the present invention |
| Inlet COS outlet COS conversion ratio PPM PPM % | Inlet COS outlet COS conversion ratio PPM PPM % | Inlet COS outlet COS conversion ratio PPM PPM % | |
| 3000 4500 6000 10000 | 123.2 46.8 62.0 132.8 78 41.3 122 74 39.3 122 90.8 25.5 | 187.5 13.4 92.3 187.5 28 85.0 187.5 39.5 187.5 187.5 78 187.5 | 187.5 7.46 96.0 187.5 11 94.1 187.5 23.5 87.5 187.5 39.2 79.1 |
The temperature effect test:
Test method is the same, fixation reaction gas space velocity 5000h-
1The result as shown in Table 2.
By table two as seen, under each temperature, the COS conversion ratio of catalyst of the present invention is all greater than P2312 and EH-IQ, and especially at the low-temperature space below 50 ℃, difference is more obvious.
Table two: reaction temperature is to the influence of COS conversion ratio
| Reaction temperature ℃ | P2312 | EH-IQ | Catalyst of the present invention |
| Inlet COS goes out COS conversion ratio PPM PPM % | Inlet COS outlet COS conversion ratio PPM PPM % | Inlet COS outlet COS conversion ratio PPM PPM % | |
| 40 45 50 55 60 70 | 134 114 14.9 154 70 54.5 154 37 75.9 154 13.25 91.4 | 187.5 170 9.33 187.5 93.7 50.0 187.5 22.8 87.8 187.5 2.33 98.7 187.5 0 100 | 187.5 116.8 37.7 187.5 55.5 70.4 187.5 9.3 95.0 187.5 0.812 99.6 187.5 0 100 |
Life test: get 0.5ml EH-IQ and 0.5ml catalyst of the present invention and 0.5mlP2312 and carry out life test.50 ℃ of fixation reaction temperature, gas space velocity 3000h
-1, other experimental condition is the same.The result as shown in Figure 1.
The result of Fig. 1 shows, catalyst of the present invention is through 186 hours running, actively do not change, and still up to 98%, EH-IQ then drops to about 80% from the conversion ratio 92% of COS, and P2312 drops to about 20% from 52%.Activity of such catalysts good stability of the present invention is described in EH-IQ and P2312, and explanation catalyst of the present invention can be used for transforming the COS unstripped gas of high concentration.
Embodiment:
Example 1:
Take by weighing 100 parts of boehmites, add 5 parts of metatitanic acids, 5 parts of kapoks are mixed, and add 1 part of 40 parts of water and 2 parts of red fuming nitric acid (RFNA)s, citric acid then, through extrusion, drying, roasting, make carrier ZT-1.Soaked 30 minutes in the KOH aqueous solution with ZT-1 immersion 5%, taking-up is being lower than 100 ℃ of dryings 15 hours, and repetitive operation is 2 times then, makes catalyst of the present invention, K
2O content 10%.
Example 2:
Take by weighing 100 parts of boehmites, 10 parts of metatitanic acids add 3 parts of carboxymethyl celluloses, are mixed, and add 40 parts of entry then, 1 part of citric acid, and 1 part of red fuming nitric acid (RFNA) makes carrier ZT-2 through extrusion, drying, roasting.ZT-2 immersed in 10% the KOH aqueous solution 30 minutes, and took out the back at below 100 ℃ dry 10 hours, repetitive operation once makes and contains K
2The COS hydrolyst of O12.5%.
Example 3
Take by weighing 100 parts of boehmites, 15 parts of metatitanic acids add 6 parts in sesbania powder, are mixed, and add 45 parts of entry, 1 part of red fuming nitric acid (RFNA), and 2 parts of citric acids get carrier ZT-3 through extrusion, drying, roasting.ZT-3 immersed in 5% the KOH aqueous solution and soak 2 times, and after soaking all under 85 ℃ of conditions dry 20 hours, make catalyst of the present invention, include K. at every turn
2O7.5%.
Example 4:
Take by weighing 100 parts of boehmites, 10 parts of metatitanic acids add 6 parts of oxidized starch, are mixed, and add 45 parts of entry, 1 part of red fuming nitric acid (RFNA), and 1 part of citric acid through extrusion, drying, roasting, gets carrier ZT-4.ZT-4 was soaked 30 minutes in 5% the KOH aqueous solution,, in 10% the aqueous solution, soaks 2 times then, and through below 100 ℃ dry 20 hours through below 100 ℃ dry 15 hours, catalyst of the present invention, include K
2O14%.
Example 5:
Take by weighing 100 parts of boehmites, 3 parts of metatitanic acids add 5 parts of carbonyl methyl celluloses, are mixed, and add 40 parts in water, 4 parts of red fuming nitric acid (RFNA)s, and 1 part of citric acid through extrusion, drying, roasting, gets carrier ZT-5.ZT-5 was soaked 30 minutes in 35% the KOH aqueous solution, through below 100 ℃ dry 15 hours, then catalyst of the present invention, include K
2O15%.
Example 6:
Take by weighing 100 parts of boehmites, 3 parts of metatitanic acids add 4 parts in sesbania powder, are mixed, and add 40 parts in water, 8 parts of red fuming nitric acid (RFNA)s, and 2 parts of citric acids through extrusion, drying, roasting, get carrier ZT-6.ZT-6 was soaked 30 minutes in 5% the KOH aqueous solution, through 85 ℃ of dryings 15 hours, catalyst of the present invention, include K
2O2%.
Example 7:
Take by weighing 100 parts of boehmites, 5 parts of metatitanic acids, 4 parts in lignin is mixed, and adds 45 parts in water, and 3 parts of red fuming nitric acid (RFNA)s through extrusion, drying, roasting, get carrier ZT-7.ZT-7 was soaked 30 minutes in 25% the KOH aqueous solution, through below 100 ℃ dry 20 hours, and once with 10% KOH aqueous solution repeated impregnations, must catalyst of the present invention, include K
2O21%.
Claims (7)
1, used normal temperature cos (COS) hydrolyst in a kind of petrochemical process, carrier is γ-Al
2O
3, active component is KOH or NaOH, it is characterized in that:
Catalyst consists of:
γ-Al
2O
3 98.5～55％(m/m)
TiO
2Or ZrO
21～20% (m/m)
KOH or NaOH 0.5～25% (m/m).
2, by the catalyst described in the claim 1, it is characterized in that catalyst consists of:
γ-Al
2O
3 98.5～55％(m/m)
TiO
2 1～20％(m/m)
KOH 0.5～25％(m/m)。
3, the preparation method of used normal temperature cos (COS) hydrolyst in a kind of petrochemical process, carrier is γ-Al
2O
3, active component is KOH or NaOH, it is characterized in that:
Carrier γ-Al
2O
3Pass through TiO
2Or ZrO
2Modification, addition are 1～20% (m/m) of finished catalyst, add to do the mode of mixing at normal temperatures, earlier with boehmite, metatitanic acid or ZrO
2, behind the pore creating material mixing, add entry and adhesive extruded moulding, again 100～150 ℃ dry down, and, obtain catalyst carrier, and then dipping active component KOH or NaOH 0.5～25% (m/m) at 500～700 ℃ of roasting temperatures.
4, by the described method of claim 3, carrier is γ-Al
2O
3, active component is KOH, it is characterized in that: carrier γ-Al
2O
3Pass through TiO
2Modification, addition is 1～20% (m/m) of finished catalyst, add to do the mode of mixing at normal temperatures, earlier with behind boehmite, metatitanic acid, the pore creating material mixing, add entry and adhesive extruded moulding, dry under 100～150 ℃ again, and at 500～700 ℃ of roasting temperatures, obtain catalyst carrier, and then dipping active component KOH 0.5～25% (m/m).
5,, it is characterized in that described pore creating material is one or more the mixture in cellulose, lignin, field powder, kapok, CMC, methylcellulose, hydroxyethylcellulose, oxidized starch, the enzyme starch by the described method of claim 3.
6, by the described method of claim 3, adhesive wherein is inorganic acid, organic acid or both mixtures, and the consumption of adhesive is 0.5～15% of a raw material weight composition.
7, by claim 3,6 described methods, adhesive wherein is the mixed acid that nitric acid and citric acid are formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94110471A CN1056096C (en) | 1994-02-21 | 1994-02-21 | Carbonyl sulfide hydrolysis catalyst and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94110471A CN1056096C (en) | 1994-02-21 | 1994-02-21 | Carbonyl sulfide hydrolysis catalyst and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1095309A CN1095309A (en) | 1994-11-23 |
| CN1056096C true CN1056096C (en) | 2000-09-06 |
Family
ID=5034436
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94110471A Expired - Fee Related CN1056096C (en) | 1994-02-21 | 1994-02-21 | Carbonyl sulfide hydrolysis catalyst and preparation method thereof |
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|---|---|
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Cited By (1)
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|---|---|---|---|---|
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| CN1080584C (en) * | 1997-12-26 | 2002-03-13 | 太原理工大学 | Normal atmospheric temp. and low temp. organic sulphur hydrolyst and its prepn. |
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| CN1069673A (en) * | 1992-06-08 | 1993-03-10 | 湖北省化学研究所 | Normal tempreture organic sulphur hydrolysis catalyst and preparation |
| DE4333504A1 (en) * | 1993-10-01 | 1995-04-06 | Dornier Gmbh | Process for O2 recovery from life support systems |
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|---|---|---|---|---|
| CN1040518A (en) * | 1988-09-02 | 1990-03-21 | 罗纳布朗克化学公司 | Gaseous effluent is handled catalyst and processing method |
| CN1054015A (en) * | 1989-10-09 | 1991-08-28 | 罗纳·布朗克化学公司 | Handle gaseous effluent catalyst of using and the method for handling these gaseous effluents |
| CN1069673A (en) * | 1992-06-08 | 1993-03-10 | 湖北省化学研究所 | Normal tempreture organic sulphur hydrolysis catalyst and preparation |
| DE4333504A1 (en) * | 1993-10-01 | 1995-04-06 | Dornier Gmbh | Process for O2 recovery from life support systems |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1331596C (en) * | 2005-01-19 | 2007-08-15 | 太原理工大学 | Low-temperature hydrolyst for high concentrated organosulfur and preparation thereof |
Also Published As
| Publication number | Publication date |
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| CN1095309A (en) | 1994-11-23 |
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