CN108889306A - A kind of desulphurization catalyst - Google Patents
A kind of desulphurization catalyst Download PDFInfo
- Publication number
- CN108889306A CN108889306A CN201810755859.1A CN201810755859A CN108889306A CN 108889306 A CN108889306 A CN 108889306A CN 201810755859 A CN201810755859 A CN 201810755859A CN 108889306 A CN108889306 A CN 108889306A
- Authority
- CN
- China
- Prior art keywords
- parts
- powder
- added
- desulphurization catalyst
- carrier
- 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.)
- Pending
Links
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
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/32—Manganese, technetium or rhenium
- B01J23/34—Manganese
-
- 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
- B01J23/83—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 rare earths or actinides
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G31/00—Refining of hydrocarbon oils, in the absence of hydrogen, by methods not otherwise provided for
-
- 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
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G2300/00—Aspects relating to hydrocarbon processing covered by groups C10G1/00 - C10G99/00
- C10G2300/20—Characteristics of the feedstock or the products
- C10G2300/201—Impurities
- C10G2300/202—Heteroatoms content, i.e. S, N, O, P
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- General Chemical & Material Sciences (AREA)
- Catalysts (AREA)
Abstract
The present invention provides a kind of desulphurization catalyst and preparation method thereof, desulphurization catalyst includes boehmite powder, titania powder, Zinc oxide powder, ceria oxide powder, ammonium hydroxide, nitric acid, active metal, deionized water.A kind of desulphurization catalyst of the invention and preparation method thereof, excellent catalytic effect, high catalytic efficiency, using titanium dioxide, zinc oxide, cerium oxide as catalyst carrier, active height has stronger adsorption capacity to sulphur and activity is promoted mutually to generate, and high thermal stability and corrosion resistance are strong；Active metal is at least one of cobalt, nickel, iron and manganese, for adjusting the activity of catalyst.
Description
Technical field
The present invention relates to desulfuration fields, and in particular to a kind of desulphurization catalyst and preparation method thereof.
Background technique
With the fast development of countries in the world economy, the mankind increasingly increase the demand of oil product.Crude oil in recent years
A large amount of exploitations result in crude oil heaviness phenomenon and increasingly aggravate.Requirement of the environmental regulation of various regions to automobile-used oil quality also day
Beneficial stringent, over 2009, American-European some developed countries have implemented ' sweet gasoline '（Such as Europe V gasoline, sulfur content is less than
10ppm）Standard.In ' the state's V standard ' that State General Administration for Quality Supervision and National Standards Commission issued on December 18th, 2013,
It is required that sulfur content in gasoline is less than 10ppm.But the automobile-used oil product in China is mainly with the higher catalytic cracking of sulfur content（FCC）Vapour
Based on oil, a series of generation that the higher oil product of sulfur content has caused natural calamities is used for a long time, seriously destroys ecological environment,
Therefore how to reduce the sulfur content in FCC gasoline is the key that promote the automobile-used oil quality in China.
Summary of the invention
The purpose of the present invention is to provide a kind of desulphurization catalyst and preparation method thereof, excellent catalytic effect, high catalytic efficiencies.
To achieve the goals above, the present invention provides a kind of desulphurization catalyst, by weight, by following components preparation
At：10-20 parts of boehmite powder, 2-7 parts of titania powder, 4-11 parts of Zinc oxide powder, 1-5 parts of ceria oxide powder, ammonia
1-4 parts of water, 2-7 parts of nitric acid, 5-12 parts of active metal, 30-60 parts of deionized water.
Further, the active metal is at least one of cobalt, nickel, iron and manganese.
Another aspect of the present invention additionally provides a kind of preparation method of desulphurization catalyst, and specific step is as follows：
（1）Nitric acid and water are mixed into dust technology, the solubility of nitric acid is：0.15-0.3mol/L；
（2）It is added in the dust technology that step 1 obtains in boehmite powder and forms colloidal sol；
（3）Titania powder, Zinc oxide powder, ceria oxide powder are slowly added in the colloidal sol that step 2 obtains, in 60-80
1-2h is stirred under the conditions of DEG C；
（4）Ammonium hydroxide is added in step 3, adjusts pH=8, filters drying after aging 9-18h, 500 DEG C of roasting 3-5h obtain carrier；
（5）Carrier is placed in air dry oven dry 15-24h；
（6）Active metal, deionized water are added in beaker, heating stirring dissolves it sufficiently, prepares active group sub-dip
Stain liquid；
（7）Carrier after will be dry in step 5 is added in maceration extract, stirs evenly, ultrasonic 30min, room temperature immersion 6-12h；
（8）By impregnated carrier in step 7, it is placed in air dry oven, the dry 8-12h at 80-100 DEG C；
（9）Carrier after will be dry in step 8, roasts 1-3h under the conditions of 400-550 DEG C in Muffle furnace and obtains desulphurization catalyst.
The invention has the advantages that：A kind of desulphurization catalyst of the invention and preparation method thereof, excellent catalytic effect,
High catalytic efficiency, using titanium dioxide, zinc oxide, cerium oxide as catalyst carrier, activity is high, has stronger adsorption energy to sulphur
Power and promotion activity mutually generate, and high thermal stability and corrosion resistance are strong；Active metal is at least one in cobalt, nickel, iron and manganese
Kind, for adjusting the activity of catalyst.
Specific embodiment
Embodiment 1
A kind of desulphurization catalyst is prepared from the following components by weight：10 parts of boehmite powder, titanium dioxide powder
Last 2 parts, 4 parts of Zinc oxide powder, 1 part of ceria oxide powder, 1 part of ammonium hydroxide, 2 parts of nitric acid, cobalt 5,30 parts of deionized water.
A kind of preparation method of desulphurization catalyst, specific step is as follows：
（1）Nitric acid and water are mixed into dust technology, the solubility of nitric acid is：0.15mol/L；
（2）It is added in the dust technology that step 1 obtains in boehmite powder and forms colloidal sol；
（3）Titania powder, Zinc oxide powder, ceria oxide powder are slowly added in the colloidal sol that step 2 obtains, in 60 DEG C of items
1h is stirred under part；
（4）Ammonium hydroxide is added in step 3, adjusts pH=8, filters drying after aging 9h, 500 DEG C of roasting 3h obtain carrier；
（5）Carrier is placed in air dry oven dry 15h；
（6）Active metal, deionized water are added in beaker, heating stirring dissolves it sufficiently, prepares active group sub-dip
Stain liquid；
（7）Carrier after will be dry in step 5 is added in maceration extract, stirs evenly, ultrasonic 30min, room temperature immersion 6h；
（8）By impregnated carrier in step 7, it is placed in air dry oven, the dry 8h at 80 DEG C；
（9）Carrier after will be dry in step 8, roasts 1h under the conditions of 400 DEG C in Muffle furnace and obtains desulphurization catalyst.
Embodiment 2
A kind of desulphurization catalyst is prepared from the following components by weight：20 parts of boehmite powder, titanium dioxide powder
7 parts, 11 parts of Zinc oxide powder, 5 parts of ceria oxide powder, 4 parts of ammonium hydroxide, 7 parts of nitric acid, 12 parts of nickel, 60 parts of deionized water of end.
A kind of preparation method of desulphurization catalyst, specific step is as follows：
（1）Nitric acid and water are mixed into dust technology, the solubility of nitric acid is：0.3mol/L；
（2）It is added in the dust technology that step 1 obtains in boehmite powder and forms colloidal sol；
（3）Titania powder, Zinc oxide powder, ceria oxide powder are slowly added in the colloidal sol that step 2 obtains, in 80 DEG C of items
2h is stirred under part；
（4）Ammonium hydroxide is added in step 3, adjusts pH=8, filters drying after aging 18h, 500 DEG C of roasting 5h obtain carrier；
（5）Carrier is placed in air dry oven dry 4h；
（6）Active metal, deionized water are added in beaker, heating stirring dissolves it sufficiently, prepares active group sub-dip
Stain liquid；
（7）Carrier after will be dry in step 5 is added in maceration extract, stirs evenly, ultrasonic 30min, room temperature immersion 12h；
（8）By impregnated carrier in step 7, it is placed in air dry oven, the dry 12h at 100 DEG C；
（9）Carrier after will be dry in step 8, roasts 3h under the conditions of 550 DEG C in Muffle furnace and obtains desulphurization catalyst.
Embodiment 3
A kind of desulphurization catalyst is prepared from the following components by weight：15 parts of boehmite powder, titanium dioxide powder
4 parts, 6 parts of Zinc oxide powder, 3 parts of ceria oxide powder, 2 parts of ammonium hydroxide, 4 parts of nitric acid, 7 parts of iron, 35 parts of deionized water of end.
A kind of preparation method of desulphurization catalyst, specific step is as follows：
（1）Nitric acid and water are mixed into dust technology, the solubility of nitric acid is：0.2mol/L；
（2）It is added in the dust technology that step 1 obtains in boehmite powder and forms colloidal sol；
（3）Titania powder, Zinc oxide powder, ceria oxide powder are slowly added in the colloidal sol that step 2 obtains, in 70 DEG C of items
1h is stirred under part；
（4）Ammonium hydroxide is added in step 3, adjusts pH=8, filters drying after aging 12h, 500 DEG C of roasting 4h obtain carrier；
（5）Carrier is placed in air dry oven dry 20h；
（6）Active metal, deionized water are added in beaker, heating stirring dissolves it sufficiently, prepares active group sub-dip
Stain liquid；
（7）Carrier after will be dry in step 5 is added in maceration extract, stirs evenly, ultrasonic 30min, room temperature immersion 8h；
（8）By impregnated carrier in step 7, it is placed in air dry oven, the dry 9h at 90 DEG C；
（9）Carrier after will be dry in step 8, roasts 2h under the conditions of 430 DEG C in Muffle furnace and obtains desulphurization catalyst.
Embodiment 4
A kind of desulphurization catalyst is prepared from the following components by weight：18 parts of boehmite powder, titanium dioxide powder
6 parts, 9 parts of Zinc oxide powder, 4 parts of ceria oxide powder, 3 parts of ammonium hydroxide, 5 parts of nitric acid, 10 parts of manganese, 55 parts of deionized water of end.
A kind of preparation method of desulphurization catalyst, specific step is as follows：
（1）Nitric acid and water are mixed into dust technology, the solubility of nitric acid is：0.25mol/L；
（2）It is added in the dust technology that step 1 obtains in boehmite powder and forms colloidal sol；
（3）Titania powder, Zinc oxide powder, ceria oxide powder are slowly added in the colloidal sol that step 2 obtains, in 76 DEG C of items
2h is stirred under part；
（4）Ammonium hydroxide is added in step 3, adjusts pH=8, filters drying after aging 16h, 500 DEG C of roasting 4h obtain carrier；
（5）Carrier is placed in air dry oven dry 22h；
（6）Active metal, deionized water are added in beaker, heating stirring dissolves it sufficiently, prepares active group sub-dip
Stain liquid；
（7）Carrier after will be dry in step 5 is added in maceration extract, stirs evenly, ultrasonic 30min, room temperature immersion 10h；
（8）By impregnated carrier in step 7, it is placed in air dry oven, the dry 8-12h at 90 DEG C；
（9）Carrier after will be dry in step 8, roasts 2h under the conditions of 500 DEG C in Muffle furnace and obtains desulphurization catalyst.
Claims (3)
1. a kind of desulphurization catalyst, which is characterized in that by weight, be prepared from the following components：Boehmite powder 10-
20 parts, 2-7 parts of titania powder, 4-11 parts of Zinc oxide powder, 1-5 parts of ceria oxide powder, 1-4 parts of ammonium hydroxide, 2-7 parts of nitric acid,
5-12 parts of active metal, 30-60 parts of deionized water.
2. a kind of desulphurization catalyst according to claim 1, which is characterized in that the active metal is cobalt, nickel, iron and manganese
At least one of.
3. a kind of preparation method of desulphurization catalyst according to claim 1, which is characterized in that specific step is as follows：
(1) nitric acid and water are mixed into dust technology, the solubility of nitric acid is：0.15-0.3mol/L；
(2) it is added in the dust technology that step 1 obtains in boehmite powder and forms colloidal sol；
(3) titania powder, Zinc oxide powder, ceria oxide powder are slowly added in the colloidal sol that step 2 obtains, in 60-80
1-2h is stirred under the conditions of DEG C；
(4) ammonium hydroxide is added in step 3, adjusts pH=8, filters drying after aging 9-18h, 500 DEG C of roasting 3-5h are carried
Body；
(5) carrier is placed in air dry oven dry 15-24h；
(6) active metal, deionized water are added in beaker, heating stirring dissolves it sufficiently, prepares active group sub-dip
Stain liquid；
(7) carrier after will be dry in step 5 is added in maceration extract, stirs evenly, ultrasonic 30min, room temperature immersion 6-12h；
(8) by impregnated carrier in step 7, it is placed in air dry oven, the dry 8-12h at 80-100 DEG C；
(9) carrier after will be dry in step 8, roasts 1-3h under the conditions of 400-550 DEG C in Muffle furnace and obtains desulphurization catalyst.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810755859.1A CN108889306A (en) | 2018-07-11 | 2018-07-11 | A kind of desulphurization catalyst |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810755859.1A CN108889306A (en) | 2018-07-11 | 2018-07-11 | A kind of desulphurization catalyst |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108889306A true CN108889306A (en) | 2018-11-27 |
Family
ID=64348944
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810755859.1A Pending CN108889306A (en) | 2018-07-11 | 2018-07-11 | A kind of desulphurization catalyst |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108889306A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113731427A (en) * | 2020-05-28 | 2021-12-03 | 中国石油化工股份有限公司 | Bifunctional desulfurization catalyst, preparation method thereof and hydrocarbon oil desulfurization method |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012132322A1 (en) * | 2011-03-31 | 2012-10-04 | Ｊｘ日鉱日石エネルギー株式会社 | Hydrocarbon oil cracking catalyst and method for cracking hydrocarbon oil |
| CN104107695A (en) * | 2013-04-17 | 2014-10-22 | 中国石油化工股份有限公司 | Preparation method of hydrodesulfurization catalyst and application of the catalyst |
| CN104415782A (en) * | 2013-08-21 | 2015-03-18 | 中国石油化工股份有限公司 | Desulphurization catalyst and preparation method and application thereof |
| CN104511284A (en) * | 2013-09-30 | 2015-04-15 | 中国石油化工股份有限公司 | Desulfurization catalyst, preparation method thereof and hydrocarbon oil desulfurizing method |
| CN105363434A (en) * | 2015-11-17 | 2016-03-02 | 安徽省元琛环保科技有限公司 | Manganese based SCR catalyst for low temperature denitration and preparation method thereof |
| CN105833877A (en) * | 2016-04-29 | 2016-08-10 | 河北鑫鹏化工有限公司 | Desulfurization catalyst and preparing method thereof |
| CN106955669A (en) * | 2017-04-11 | 2017-07-18 | 福建省鑫森炭业股份有限公司 | A kind of high-performance desulphurization denitration activated carbon and preparation method thereof |
| CN107983358A (en) * | 2017-12-14 | 2018-05-04 | 马鞍山松鹤信息科技有限公司 | A kind of desulfurization catalyst of flue gas and its preparation process |
-
2018
- 2018-07-11 CN CN201810755859.1A patent/CN108889306A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012132322A1 (en) * | 2011-03-31 | 2012-10-04 | Ｊｘ日鉱日石エネルギー株式会社 | Hydrocarbon oil cracking catalyst and method for cracking hydrocarbon oil |
| CN104107695A (en) * | 2013-04-17 | 2014-10-22 | 中国石油化工股份有限公司 | Preparation method of hydrodesulfurization catalyst and application of the catalyst |
| CN104415782A (en) * | 2013-08-21 | 2015-03-18 | 中国石油化工股份有限公司 | Desulphurization catalyst and preparation method and application thereof |
| CN104511284A (en) * | 2013-09-30 | 2015-04-15 | 中国石油化工股份有限公司 | Desulfurization catalyst, preparation method thereof and hydrocarbon oil desulfurizing method |
| CN105363434A (en) * | 2015-11-17 | 2016-03-02 | 安徽省元琛环保科技有限公司 | Manganese based SCR catalyst for low temperature denitration and preparation method thereof |
| CN105833877A (en) * | 2016-04-29 | 2016-08-10 | 河北鑫鹏化工有限公司 | Desulfurization catalyst and preparing method thereof |
| CN106955669A (en) * | 2017-04-11 | 2017-07-18 | 福建省鑫森炭业股份有限公司 | A kind of high-performance desulphurization denitration activated carbon and preparation method thereof |
| CN107983358A (en) * | 2017-12-14 | 2018-05-04 | 马鞍山松鹤信息科技有限公司 | A kind of desulfurization catalyst of flue gas and its preparation process |
Non-Patent Citations (1)
| Title |
|---|
| 唐有褀著: "《唐有褀文集 第7卷》", 31 July 2008, 河北教育出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113731427A (en) * | 2020-05-28 | 2021-12-03 | 中国石油化工股份有限公司 | Bifunctional desulfurization catalyst, preparation method thereof and hydrocarbon oil desulfurization method |
| CN113731427B (en) * | 2020-05-28 | 2023-10-10 | 中国石油化工股份有限公司 | Dual-function desulfurization catalyst, preparation method thereof and hydrocarbon oil desulfurization method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2015161627A1 (en) | Honeycomb denitration catalyst for flue gas at 400°c-600°c and preparation method therefor | |
| CN108465467A (en) | A kind of efficient NH applied to middle low-temperature flue gas3SCR denitration, preparation method and applications | |
| CN112275314A (en) | Manganese-cerium-based molecular sieve SCR denitration catalyst and preparation method thereof | |
| CN104148052A (en) | Cerium-vanadium-silicon-titanium composite oxide catalyst and preparation method thereof | |
| CN112547099B (en) | Low-temperature cerium-based sulfur-resistant water-resistant denitration catalyst and preparation method thereof | |
| CN108889306A (en) | A kind of desulphurization catalyst | |
| CN106902823B (en) | A kind of core-shell structure denitrating catalyst and preparation method thereof of the resistance to sulfur poisoning of chlorine-resistant | |
| CN103084166A (en) | Low-temperature SCR (Selective Catalytic Reduction) denitration catalyst with multilevel macroporous-mesoporous structure and preparation method thereof | |
| CN102764657A (en) | Nano V205/activated coke denitration catalyst and preparation method of catalyst | |
| CN104437653A (en) | Bio-based rubble paper-like catalyst for low-temperature synchronous denitration and desulfurization and preparation method thereof | |
| CN106179218A (en) | A kind of sintering flue gas desulfurization agent with active carbocoal as carrier and preparation, renovation process and application | |
| CN106914253A (en) | A kind of activated-carbon catalyst | |
| CN102533389B (en) | Method for applying mesocellular silica hollow sphere iron-based oxygen carrier | |
| CN108002449A (en) | A kind of MnCo2O4The preparation method of spinelle type composite oxides | |
| CN114534712A (en) | Vanadium-titanium reversal catalyst and preparation method and application thereof | |
| CN106807363B (en) | A kind of manganese systems supported titanium doping nano-tube SCR catalyst and preparation method thereof | |
| CN102585969B (en) | Novel iron-based oxygen carrier of nuclear-free cavity structure and preparation method thereof | |
| CN101966470A (en) | Rare-earth desulfurization catalyst and preparation method thereof | |
| CN106807360B (en) | A kind of preparation method of sulfur resistive denitrating catalyst | |
| CN112044425A (en) | Hydrochloric acid acidified kaolin loaded vanadium oxidation desulfurization catalyst and preparation and application thereof | |
| CN115025802A (en) | Preparation method of multi-effect coupling organic sulfur wide-temperature hydrolysis catalyst | |
| CN107376925B (en) | A kind of low temperature high activity carbon dioxide methanation catalyst and preparation method thereof | |
| CN113663720B (en) | Preparation method and application of nickel modified molecular sieve catalyst for regenerating rich amine | |
| CN107774240B (en) | The preparation method of flue gas reduction and desulfurization catalyst | |
| CN115487822A (en) | Regeneration method of lead-poisoned Mn-Ce low-titanium blast furnace slag denitration catalyst |
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 | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181127 |