CN102728343A - Preparation method of denitration catalyst cellular module - Google Patents

Preparation method of denitration catalyst cellular module Download PDF

Info

Publication number
CN102728343A
CN102728343A CN2012102233098A CN201210223309A CN102728343A CN 102728343 A CN102728343 A CN 102728343A CN 2012102233098 A CN2012102233098 A CN 2012102233098A CN 201210223309 A CN201210223309 A CN 201210223309A CN 102728343 A CN102728343 A CN 102728343A
Authority
CN
China
Prior art keywords
pug
cellular ceramic
hours
honey comb
carry
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
Application number
CN2012102233098A
Other languages
Chinese (zh)
Inventor
华雪
王慧忠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changchun Xinrui Technology & Trade Co Ltd
Original Assignee
Changchun Xinrui Technology & Trade Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Changchun Xinrui Technology & Trade Co Ltd filed Critical Changchun Xinrui Technology & Trade Co Ltd
Priority to CN2012102233098A priority Critical patent/CN102728343A/en
Publication of CN102728343A publication Critical patent/CN102728343A/en
Pending legal-status Critical Current

Links

Abstract

The invention relates to a preparation method of a denitration catalyst cellular module. Main powdery materials V2O5-WO3/TiO2-ZrO2, pottery clay or glass fiber, binder, plasticizer solid-phase powder are well mixed; the mixture is added into a kneading machine; water is added into the kneading machine, and the mixture is kneaded; a lubricating agent with a weight 0.2-0.3 times that of the main powdery materials is added to the mixture, and kneading is continued for 1-3h; a well kneaded pug blank is added into a sealing plastic apparatus, and is subjected to aging in a cool shade; the mixed pug is subjected to 2-3 times of vacuum mixing, such that a cellular ceramic precursor pug is obtained; the cellular ceramic precursor pug is shaped by extrusion by using a cellular ceramic extruding machine; the shaped material is subjected to curve drying in a constant-temperature constant-humidity drying cabinet; the dried cellular ceramic module is baked for 3h under a temperature of 600 DEG C in a high-temperature calcining machine; the modules are cooled and the obtained products are trimmed, such that a cellular ceramic catalyst finished product is obtained. Experimental effects of the cellular ceramic catalyst are better than those of common cellular ceramic catalyst products in the market. The cellular ceramic catalyst provided by the invention has higher denitration rate, larger specific surface area, better sulfur conversion resistance rate, and longer service life.

Description

The preparation method of denitrating catalyst cellular module
Technical field
the present invention relates to the ceramic honeycomb catalyst preparation methods, and particularly relating to a kind of is the ceramic honey comb preparation method of new hybrid carrier with TiO2 and ZrO2.
Background technology
The pollution problem of nitrogen oxide (NOX) was paid attention to by countries in the world in recent years and was controlled, and along with Chinese economic development, environmental problem more and more draws attention.The application market of denitrating catalyst is also more widespread.
are present, and the SCR denitrating catalyst forming module form of main flow mainly contains on the international market: honeycomb fashion, board-like and corrugated three kinds, and the honeycomb fashion ceramic catalyst is widely used.But owing to adopt traditional handicraft, hardness is relatively poor, causes the life-span shorter relatively; The powder specific area of produced in conventional processes is less, and anti-sulphur conversion ratio is higher relatively, causes denitration efficiency relatively low.
Summary of the invention
the objective of the invention is to propose a kind of is the preparation method of the ceramic honey comb of new hybrid carrier with TiO2 and ZrO2, makes the denitration rate of ceramic honeycomb catalyst higher, specific area is bigger, anti-sulphur conversion ratio is better, longer service life.
For realizing above-mentioned purpose, the present invention provides a kind of preparation method of denitrating catalyst cellular module, it is characterized in that comprising the following steps:
(1) mixing of materials: the solid phase powder of following weight parts is fully mixed in batch mixer
Main powder V2O5-WO3/TiO2-ZrO2 1
Potter's clay or glass fibre 0.08-0.12
Binding agent 0.02-0.04
Plasticizer 0.01-0.03;
(2) mediate: mixed solid phase powder is put in the kneader, added water and mediate, the addition of water is 42 ~ 58% of a solid phase powder mixture weight; Fully mediate after even 2 hours; Add the lubricant of becoming owner of powder 0.2-0.3 times weight, continue to mediate 1-3 hours, take out;
(3) old: kneaded pug idiosome is packed in the sealed plastic device, In Shadely carry out oldly, the old time is 24-30 hours, during pug is carried out mixing extruding 1-2 times;
(4) pug after mixing is carried out 2-3 times vacuum kneading in the vacuum kneading machine, make ceramic honey comb precursor pug;
(5) with the ceramic honey comb precursor pug that the makes extrusion molding in the ceramic honey comb extruder of packing into;
(6) the ceramic honey comb module with moulding places the constant temperature and humidity drying case to carry out the curve drying;
(7) with dried ceramic honey comb module in the high-temperature calcination stove 600 ℃ carried out roasting 3 hours, carry out the finished product integer after the cooling, promptly get the ceramic honeycomb catalyst finished product.
all are better than ceramic honeycomb catalyst product commonly used in the market through the resulting ceramic honeycomb catalyst test effect of the present invention, and the denitration rate is higher, and specific area is bigger, and anti-sulphur conversion ratio is better, longer service life.
The specific embodiment
Embodiment 1
V2O5-WO3/TiO2-ZrO2 master's powder 1kg is got in ; Auxiliary material is a potter's clay, and quality is 0.08kg; Binding agent is a methylcellulose, and quality is 0.02kg; Plasticizer is a polyethylene glycol, and quality is 0.01kg; The above-mentioned solid phase powder is fully mixed in batch mixer.The solid phase powder that will carry out behind the batch mixing is put in the kneader, adds water and mediates, and the addition of water is 0.46kg, fully mediate even 2 hours after, add lubricant glycerine 0.22kg; Continue to mediate 2 hours, take out.Pug idiosome after kneaded is packed in the sealed plastic device, In Shadely carry out oldly, the old time is 24 hours, during pug is carried out mixing extruding 2 times.With the pug after mixing, in the vacuum kneading machine, carry out vacuum kneading 2 times, make ceramic honey comb precursor pug, with the ceramic honeycomb catalyst precursor pug that the makes extrusion molding in the ceramic honey comb extruder of packing into.Place the constant temperature and humidity drying case to carry out drying the ceramic honeycomb catalyst of moulding, with dried honeycomb catalyst module in the high-temperature calcination stove 600 ℃ carried out roasting 3 hours, carry out the finished product integer after the cooling, the ceramic honeycomb catalyst finished product.
Embodiment 2
V2O5-WO3/TiO2-ZrO2 master's powder 1kg is got in ; Auxiliary material is a glass fibre, and quality is 0.1kg; Binding agent is a methylcellulose, and quality is 0.025kg; Plasticizer is a polyethylene glycol, and quality is 0.015kg; The above-mentioned solid phase powder is fully mixed at the batch mixing machine.The solid phase powder that will carry out behind the batch mixing is put in the kneader, adds water and mediates, and the addition of water is 0.55kg, fully mediate even 2 hours after, add lubricant triethanolamine 0.25kg; Continue to mediate 1 hour, take out.Pug idiosome after kneaded is packed in the sealed plastic device, In Shadely carry out oldly, the old time is 26 hours, during pug is carried out mixing extruding 2 times.With the pug after mixing, in the vacuum kneading machine, carry out vacuum kneading 3 times, make ceramic honey comb precursor pug, with the ceramic honeycomb catalyst precursor pug that the makes extrusion molding in the ceramic honey comb extruder of packing into.Place the constant temperature and humidity drying case to carry out drying the ceramic honeycomb catalyst of moulding, with dried honeycomb catalyst module in the high-temperature calcination stove 600 ℃ carried out roasting 3 hours, carry out the finished product integer after the cooling.Get the ceramic honeycomb catalyst finished product.
Embodiment 3
V2O5-WO3/TiO2-ZrO2 master's powder 1kg is got in ; Auxiliary material is a potter's clay, and quality is 0.11kg; Binding agent is a hydroxypropyl cellulose, and quality is 0.03kg; Plasticizer is a polyethylene glycol, and quality is 0.02kg; The above-mentioned solid phase powder is fully mixed at the batch mixing machine.The solid phase powder that will carry out behind the batch mixing is put in the kneader, adds water and mediates, and the addition of water is 0.61kg, fully mediate even 2 hours after, add lubricant glycerine 0.28kg; Continue to mediate 3 hours, take out.Pug idiosome after kneaded is packed in the sealed plastic device, In Shadely carry out oldly, the old time is 28 hours, during pug is carried out mixing extruding 1 time.With the pug after mixing, in the vacuum kneading machine, carry out vacuum kneading 2 times, make ceramic honey comb precursor pug, with the ceramic honeycomb catalyst precursor pug that the makes extrusion molding in the ceramic honey comb extruder of packing into.Place the constant temperature and humidity drying case to carry out drying the ceramic honeycomb catalyst of moulding, with dried honeycomb catalyst module in the high-temperature calcination stove 600 ℃ carried out roasting 3 hours, carry out the finished product integer after the cooling.Get the ceramic honeycomb catalyst finished product.
Embodiment 4
V2O5-WO3/TiO2-ZrO2 master's powder 1kg is got in ; Auxiliary material is a glass fibre, and quality is 0.12kg; Binding agent is a hydroxypropyl cellulose, and quality is 0.04kg; Plasticizer is a polyethylene glycol, and quality is 0.03kg; The above-mentioned solid phase powder is fully mixed at the batch mixing machine.The solid phase powder that will carry out behind the batch mixing is put in the kneader, adds water and mediates, and the addition of water is 0.69kg, fully mediate even 2 hours after, add lubricant glycerine 0.2kg; Continue to mediate 2 hours, take out.Pug idiosome after kneaded is packed in the sealed plastic device, In Shadely carry out oldly, the old time is 30 hours, during pug is carried out mixing extruding 1 time.With the pug after mixing, in the vacuum kneading machine, carry out vacuum kneading 2 times, make ceramic honey comb precursor pug, with the ceramic honeycomb catalyst precursor pug that the makes extrusion molding in the ceramic honey comb extruder of packing into.Place the constant temperature and humidity drying case to carry out drying the ceramic honeycomb catalyst of moulding, with dried honeycomb catalyst module in the high-temperature calcination stove 600 ℃ carried out roasting 3 hours, carry out the finished product integer after the cooling.Get the ceramic honeycomb catalyst finished product.
The constant temperature and humidity drying curve is following:
Temperature ℃ humidity % time h temperature ℃ humidity ℃ time h
Room temperature 90 3 65 55 3
35?85?3 70?50?2
40?80?3 75?40?2
45?75?3 80?30?2
50?70?3 85?20?2
55?65?3 90?5 2
60?60?3 100 ??6
Test Example
Ceramic honey comb module body through manufacturing of the present invention is the ceramic honeycomb catalyst commonly used data contrast that makes an experiment in resulting data and the market in engineering test, and the result is following:
The present invention of experimental data comparative run makes ceramic honeycomb catalyst market ceramic honeycomb catalyst commonly used
Denitration efficiency>=92%>=85%
Specific area 77-85 m2/g 65-80 m2/g
Anti-sulphur conversion ratio 0.6% 0.8%
25000 hours 22000 hours service life
experiment shows, all is better than ceramic honeycomb catalyst product commonly used in the market through the resulting ceramic honeycomb catalyst test effect of the present invention.

Claims (3)

1. the preparation method of a denitrating catalyst cellular module is characterized in that comprising the following steps:
(1) mixing of materials: the solid phase powder of following weight parts is fully mixed in batch mixer
Main powder V2O5-WO3/TiO2-ZrO2 1
Potter's clay or glass fibre 0.08-0.12
Binding agent 0.02-0.04
Plasticizer 0.01-0.03;
(2) mediate: mixed solid phase powder is put in the kneader, added water and mediate, the addition of water is 42 ~ 58% of a solid phase powder mixture weight; Fully mediate after even 2 hours; Add the lubricant of becoming owner of powder 0.2-0.3 times weight, continue to mediate 1-3 hours, take out;
(3) old: kneaded pug idiosome is packed in the sealed plastic device, In Shadely carry out oldly, the old time is 24-30 hours, during pug is carried out mixing extruding 1-2 times;
(4) pug after mixing is carried out 2-3 times vacuum kneading in the vacuum kneading machine, make ceramic honey comb precursor pug;
(5) with the ceramic honey comb precursor pug that the makes extrusion molding in the ceramic honey comb extruder of packing into;
(6) the ceramic honey comb module with moulding places the constant temperature and humidity drying case to carry out the curve drying;
(7) with dried ceramic honey comb module in the high-temperature calcination stove 600 ℃ carried out roasting 3 hours, carry out the finished product integer after the cooling, promptly get the ceramic honeycomb catalyst finished product.
2. the preparation method of denitrating catalyst cellular module according to claim 1 is characterized in that: binding agent is methylcellulose or hydroxypropyl cellulose.
3. the preparation method of denitrating catalyst cellular module according to claim 1 is characterized in that: plasticizer is a polyethylene glycol.
CN2012102233098A 2012-07-02 2012-07-02 Preparation method of denitration catalyst cellular module Pending CN102728343A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2012102233098A CN102728343A (en) 2012-07-02 2012-07-02 Preparation method of denitration catalyst cellular module

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2012102233098A CN102728343A (en) 2012-07-02 2012-07-02 Preparation method of denitration catalyst cellular module

Publications (1)

Publication Number Publication Date
CN102728343A true CN102728343A (en) 2012-10-17

Family

ID=46985058

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2012102233098A Pending CN102728343A (en) 2012-07-02 2012-07-02 Preparation method of denitration catalyst cellular module

Country Status (1)

Country Link
CN (1) CN102728343A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103495413A (en) * 2013-09-23 2014-01-08 宜兴市宜刚环保工程材料有限公司 Low-cost denitration catalyst and preparation process thereof
CN104324718A (en) * 2013-12-19 2015-02-04 南宁市磁汇科技有限公司 Manufacturing method of honeycomb catalyst
CN104324716A (en) * 2013-12-19 2015-02-04 南宁市磁汇科技有限公司 Monolithic catalyst for removing nitrogen oxides from mobile source waste gas and preparation method thereof
CN106268785A (en) * 2016-07-22 2017-01-04 四川大学 A kind of SCR denitration and preparation method thereof
CN108525707A (en) * 2018-04-02 2018-09-14 北京水木星源环保科技有限公司 A kind of honeycomb type denitrification catalyst and preparation method
CN110204351A (en) * 2019-06-26 2019-09-06 江苏龙净科杰环保技术有限公司 A method of ceramic honey comb is prepared with denitrating catalyst waste material

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102266761A (en) * 2011-06-13 2011-12-07 华北电力大学 SCR (selective catalyctic reduction) flue gas denitration catalyst based on TiO2-ZrO2 composite carrier and preparation method thereof
CN102380370A (en) * 2011-10-08 2012-03-21 浙江天蓝环保技术股份有限公司 Monolithic cellular catalyst for SCR smoke denitration and preparation technology thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102266761A (en) * 2011-06-13 2011-12-07 华北电力大学 SCR (selective catalyctic reduction) flue gas denitration catalyst based on TiO2-ZrO2 composite carrier and preparation method thereof
CN102380370A (en) * 2011-10-08 2012-03-21 浙江天蓝环保技术股份有限公司 Monolithic cellular catalyst for SCR smoke denitration and preparation technology thereof

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103495413A (en) * 2013-09-23 2014-01-08 宜兴市宜刚环保工程材料有限公司 Low-cost denitration catalyst and preparation process thereof
CN104324718A (en) * 2013-12-19 2015-02-04 南宁市磁汇科技有限公司 Manufacturing method of honeycomb catalyst
CN104324716A (en) * 2013-12-19 2015-02-04 南宁市磁汇科技有限公司 Monolithic catalyst for removing nitrogen oxides from mobile source waste gas and preparation method thereof
CN106268785A (en) * 2016-07-22 2017-01-04 四川大学 A kind of SCR denitration and preparation method thereof
CN106268785B (en) * 2016-07-22 2019-06-07 四川大学 A kind of SCR denitration and preparation method thereof
CN108525707A (en) * 2018-04-02 2018-09-14 北京水木星源环保科技有限公司 A kind of honeycomb type denitrification catalyst and preparation method
CN110204351A (en) * 2019-06-26 2019-09-06 江苏龙净科杰环保技术有限公司 A method of ceramic honey comb is prepared with denitrating catalyst waste material

Similar Documents

Publication Publication Date Title
CN102728343A (en) Preparation method of denitration catalyst cellular module
CN100412026C (en) Iolite cellular ceramic and preparation method
EP1890983B1 (en) Aluminum titanate ceramic forming batch mixtures and green bodies including pore former combinations and methods of manufacturing and firing same
CN102191398B (en) Preparation method of carborundum particle reinforced aluminum matrix composite material with high volume fraction
CN103351113B (en) A kind of quartz and preparation method thereof
CN106365669B (en) It is a kind of using total oxygen compound as cordierite honeycomb ceramic carrier of raw material and preparation method thereof
CN103113102A (en) Zirconia ceramic insert core and preparation method thereof
CN101780353A (en) Micropore ceramic filter element and preparation method thereof
WO2016052461A1 (en) Method for producing honeycomb filter
CN103922750A (en) Wear-resistant silicon nitride ceramic material and preparation method thereof
US20160376200A1 (en) Composition for improved manufacture of substrates
CN103601480A (en) Filter body for trapping carbon cigarette pellets of diesel engine and preparation method thereof
CN104876624A (en) Silicon carbide honeycomb ceramic pug and pugging method
CN105924202B (en) A kind of diesel engine vent gas post-processing technology of preparing of SCR catalyst carrier
CN102133532B (en) Method for preparing honeycomb integrated catalyst for catalyzing partial oxidized methane to prepare synthesis gas
CN106458772A (en) Skinning of ceramic honeycomb bodies
CN104230369B (en) A kind of high porosity ceramic with honeycomb and preparation method thereof
CN102085489A (en) Method for preparing cordierite honeycomb ceramic catalyst carrier from coal gangues
CN108373334B (en) 3D printing slurry based on waste ceramic recycling and preparation method of special binder thereof
CN102249656A (en) Preparation method for thin-wall and low-expansion cordierite honeycomb ceramics
US9205362B2 (en) Methods for manufacturing particulate filters
CN105503233B (en) A kind of big-size thinning plastic cordierite honeycomb ceramic carrier pug and preparation method thereof
CN103360101A (en) Preparation method of gradient composite SiC ceramic filter tube
CN105523774A (en) Preparation method for porous silicon nitride ceramic
CN107010986B (en) Porous ceramic water collecting tank and forming and packaging process thereof

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20121017