CN101139083A - Devices for catalyzing manufacturing of hydrogen by using waste plastics and methods thereof - Google Patents
Devices for catalyzing manufacturing of hydrogen by using waste plastics and methods thereof Download PDFInfo
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- CN101139083A CN101139083A CNA2007100452066A CN200710045206A CN101139083A CN 101139083 A CN101139083 A CN 101139083A CN A2007100452066 A CNA2007100452066 A CN A2007100452066A CN 200710045206 A CN200710045206 A CN 200710045206A CN 101139083 A CN101139083 A CN 101139083A
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- water vapour
- plastic waste
- hydrogen
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Abstract
The present invention discloses a hydrogen production method and a device by making use of waste plastic catalysis including two parts of fluidized bed gasifying the waste plastic and hydrogen production by vapor catalyzing and reforming. The lower part of the device is a gasifying section of the fluidized bed, and the upper part of the device is a section of hydrogen production by vapor catalyzing and reforming. The inside of the device is provided with an injection tube, a feeding inlet and a slag drain. Silver sand and stones are selected as the material of the fluidized bed provided with a catalyst supporting and grey isolating net, a catalyst bed layer, an air inlet, and a vapor-gas injection tube inlet at the top end of the device and communicated with the injection tube. The invention has the advantages of simple art and low cost and has a certain control action to the secondary contamination possibly generated by hydrogen production by waste plastic catalysis. The device of the invention can realize the coupling of fluidized bed waste plastic gasifying, partial oxidation and vapor hydrogen production by vapor catalyzing and reforming in a reactor.
Description
Technical field
The present invention relates to a kind of apparatus and method, relate to a kind of devices and methods therefor that utilizes the plastic waste catalyzing manufacturing of hydrogen specially in particular based on solid waste recovery manufacturing hydrogen.
Background technology
The quantity of China's plastics-production and consumption is all very big, and this is when being convenient for people to live, and annual plastic refuse " white pollution " problem that produces becomes increasingly conspicuous, and rationally disposing waste or used plastics has become an important social concern.Plastics mostly are the goods of raw material with the oil, have higher energy utilization and be worth, yet, aspect the technics of reclaim of plastic waste energy, no matter be that burning utilizes heat energy or cracking, it is high and produce the problem of secondary pollutant all to exist the direct utilization ratio of waste or used plastics.With cheap plastic waste is that raw material is produced hydrogen, and cost is low, becomes " giving up " and is " treasured ", has environmental effect and society and economic benefit preferably.
Summary of the invention
First technical problem to be solved by this invention provides a kind of device that utilizes the plastic waste catalyzing manufacturing of hydrogen specially, and this device can be realized the coupling of reactions such as the gasification of fluidized-bed plastic waste, partial oxidation and water vapour catforming hydrogen production in a reactor.Second technical problem to be solved by this invention provides a kind of said apparatus that utilizes plastic waste is prepared as the method for hydrogen, and this method technology is simple, cost is low, and the issuable secondary pollutant of plastic waste catalyzing manufacturing of hydrogen is had certain control.
The technical solution used in the present invention: the present invention is that the related chemical reaction of catalytic material hydrogen manufacturing is very complicated with the plastic waste, and main reaction signal comprises following reaction formula:
Plastic waste+H
2O+O
2→ CO+CO
2+ C
nH
mO
k
C
nH
mO
k+H
2O+O
2→CO+CO
2+H
2
A kind of device that utilizes the plastic waste catalyzing manufacturing of hydrogen specially, the bottom is the fluidized-bed gasification section, top is the water vapour catforming hydrogen production section, it is characterized in that: the inner winding-up pipe that jet from top to bottom water vapour and air gas mixture are set of device, the fluidized-bed gasification section is provided with material inlet and slag-drip opening in the bottom, fine sand stone is the bed material of fluidized-bed, top water vapour reforming hydrogen producing section be provided with catalyzer support with every grey net, catalyzer is in the catalyzer support and form beds on the net every ash, pneumatic outlet is above beds, and water vapour and the import of air blown pipe are managed UNICOM on the top of device and with winding-up.
A kind of method of utilizing said apparatus with the plastic waste catalyzing manufacturing of hydrogen comprises the following steps:
A. fluidized-bed gasification plastic waste: plastic waste pulverized be the particle of diameter 5～10mm, add the unslaked lime that accounts for plastic waste massfraction 2～5%, plastic waste and the material inlet feeder bottom of the mixture of giving birth to stone from described device, with volume fraction is that 80～90% water vapour and volume fraction are that the mixed gas that 10～20% air is formed is a vaporized chemical, manage in the jetting device through winding-up from the water vapour and the import of air blown pipe of device, controlled temperature is 500～700 ℃ of gasification plastic waste in fluidized-bed;
B. the thick gas of water vapour catforming hydrogen production: step a gasification generation is through the catalyzer support on device top and every grey net and beds, the water vapour catforming reaction further takes place, discharge the final gas products that is rich in hydrogen from pneumatic outlet, described catalyzer is a KF104 type methanol steam reforming catalyzer.
Beneficial effect of the present invention: the inventive method adopts water vapour and the air gas mixture plastic waste that gasifies under hot conditions, speed of reaction is fast, has also effectively prevented coking; The inventive method is moulded gasifying stage to adopt unslaked lime is catalyzer useless, not only plays the catalytic gasification effect, and pollutant emission is also had control action kou preferably; The inventive method adopts commercial steam reforming catalyzer in the water vapour catforming hydrogen production stage, and the be converted thick gas in autopneumatolysis stage of orientation is to obtain higher yields hydrogen.Apparatus of the present invention internal structure is simple, has the competent useful space, helps multiphase flow and mixes and reaction.Apparatus of the present invention be provided with catalyzer support with every grey net, not only support catalyst, stop flying dust, also have the effect of gas distributor simultaneously concurrently.The present invention has realized the coupling of reactions such as the gasification of fluidized-bed plastic waste, partial oxidation and water vapour catforming hydrogen production in a reactor.
Description of drawings
Fig. 1 is a catalyzing manufacturing of hydrogen device synoptic diagram of the present invention.
Embodiment
Below by drawings and Examples the present invention is described in further detail: as shown in Figure 1, a kind of device 6 that utilizes the plastic waste catalyzing manufacturing of hydrogen specially, the bottom is the fluidized-bed gasification section, top is the water vapour catforming hydrogen production section, it is characterized in that: the device 6 inner winding-up pipes 8 that jet from top to bottom water vapour and air gas mixture are set, be provided with material inlet 2 and slag-drip opening 1 in bottom fluidized-bed gasification section, fine sand stone 3 is bed material of fluidized-bed, top water vapour reforming hydrogen producing section be provided with catalyzer support with every grey net 9, catalyzer supports and formation beds 4 on grey net 9 at catalyzer, pneumatic outlet 5 is above beds 4, and water vapour and air blown pipe import 7 are managed 8 UNICOMs on the top of device 6 and with winding-up.
Utilize the method for said apparatus with the plastic waste catalyzing manufacturing of hydrogen, comprise the following steps: a. fluidized-bed gasification plastic waste: the plastic waste pulverizing is the particle of diameter 5～10mm, add the unslaked lime that accounts for plastic waste massfraction 2～5%, plastic waste and the material inlet 2 feeder bottoms of the mixture of giving birth to stone from described device 6, with volume fraction is that 80～90% water vapour and volume fraction are that the mixed gas that 10～20% air is formed is a vaporized chemical, from installing 6 water vapour and air blown pipe import 7 through in winding-up pipe 8 jetting devices, controlled temperature is 500～700 ℃ of gasification plastic waste in fluidized-bed; B. the thick gas of water vapour catforming hydrogen production: step a gasification generation is through the catalyzer support on device 6 tops and every grey net 9 and beds 4, the water vapour catforming reaction further takes place, discharge the final gas products that is rich in hydrogen from pneumatic outlet 5, described catalyzer is a KF104 type methanol steam reforming catalyzer, catalyzer is to be that the CuO of 15-80% is a main body with the massfraction, and massfraction is that ZnO and the massfraction of 10-45% is the Al of 8-50%
2O
3Be the Cu-Zn-Al catalyzer of interval body, produce that inspecting standard is: the mark Q/72344186-2-003-202 of enterprise by Ya Lianrui Xinghua, Chinese Sichuan worker's type material limited liability company.
Product gas outlet 5 at described device 6 adopts portable GreenLine 9000 type gas analyzers to analyze hydrogen content.
Embodiment 1
With plastic waste raw material pulverizing to average particulate diameter is 10mm, adds then that to account for the plastic waste massfraction be 5% unslaked lime, and raw material is that 10kg/h sends into from installing 6 opening for feed 2 with speed; With volume fraction is that 80% water vapour and 20% air gas mixture are vaporized chemical, and the total volumetric flow rate of vaporized chemical is 30m
3/ h, vaporized chemical is from installing 6 water vapour and air blown pipe import 7 from top to bottom through in winding-up pipe 8 jetting devices 6; Install 6 bottoms with fine sand stone 3 as bed material, at 700 ℃ of gasification plastic waste down, the thick gas that gasification produces through the support on device 6 tops with enter beds 4 every grey net 9, issue the unboiled water steam reforming reaction in the effect of catalyzer.Described catalyzer is a KF104 type methanol steam reforming catalyzer; The average catalyst particle diameter is 0.45mm's, and consumption is 10kg; In the 3 little the reaction times, adopt portable GreenLine 9000 type gas analyzers to analyze hydrogen content, the mean volume fraction that records hydrogen in the outlet 5 of installing 6 is 43%.
Embodiment 2
With plastic waste raw material pulverizing to average particulate diameter is 5mm, adds then that to account for the plastic waste massfraction be 2% unslaked lime, and raw material is that 10kg/h sends into from installing 6 opening for feed 2 with speed; With volume fraction is that 90% water vapour and 10% air gas mixture are vaporized chemical, and the total volumetric flow rate of vaporized chemical is 30m
3/ h, vaporized chemical is from installing 6 water vapour and air blown pipe import 7 from top to bottom through the lower curtate of winding-up pipe 8 jetting devices 6; Install 6 bottoms with fine sand stone 3 as bed material, at 600 ℃ of gasification plastic waste, the thick gas that gasification produces through the support on device 6 tops with enter beds 4 every grey net 9, issue the unboiled water steam reforming reaction in the effect of catalyzer; Described catalyzer is a KF104 type methanol steam reforming catalyzer; The average catalyst particle diameter is 0.45mm, and consumption is 10kg; In the 3 little the reaction times, adopt portable GreenLine 9000 type gas analyzers to analyze hydrogen content, the mean volume fraction that records hydrogen in the outlet 5 of installing 6 is 40%.
Embodiment 3
With plastic waste raw material pulverizing to average particulate diameter is 5mm, adds then that to account for the plastic waste massfraction be 5% unslaked lime, and raw material is that 10kg/h sends into from installing 6 opening for feed 2 with speed; With volume fraction is that 85% water vapour and 15% air gas mixture are vaporized chemical, and the total volumetric flow rate of vaporized chemical is 30m
3/ h, vaporized chemical is from installing 6 water vapour and air blown pipe import 7 from top to bottom through the lower curtate of winding-up pipe 8 jetting devices 6; Install 6 bottoms with fine sand stone 3 as bed material, at 500 ℃ of gasification plastic waste, the thick gas that gasification produces through the support on device 6 tops with enter beds 4 every grey net 9, issue the unboiled water steam reforming reaction in the effect of catalyzer; Described catalyzer is a KF104 type methanol steam reforming catalyzer; The average catalyst particle diameter is 0.45mm, and consumption is 10kg; In the 3 little the reaction times, adopt portable GreenLine 9000 type gas analyzers to analyze hydrogen content, the mean volume fraction that records hydrogen in the outlet 5 of installing 6 is 39%.
Above said content only is the basic explanation of the present invention under conceiving, and according to any equivalent transformation that technical scheme of the present invention is done, all should belong to protection scope of the present invention.
Claims (2)
1. device (6) that utilizes the plastic waste catalyzing manufacturing of hydrogen specially, the bottom is the fluidized-bed gasification section, top is the water vapour catforming hydrogen production section, it is characterized in that: the inner winding-up pipe (8) that jet from top to bottom water vapour and air gas mixture are set of device (6), be provided with material inlet (2) and slag-drip opening (1) in bottom fluidized-bed gasification section, fine sand stone (3) is the bed material of fluidized-bed, top water vapour reforming hydrogen producing section be provided with catalyzer support with every grey net (9), catalyzer is gone up in the catalyzer support and every grey net (9) and is formed beds (4), pneumatic outlet (5) is in the top of beds (4), and water vapour and air blown pipe import (7) are managed (8) UNICOM on the top of device (6) and with winding-up.
2. one kind is utilized said apparatus that plastic waste is prepared as the method for hydrogen, comprises the following steps:
A. fluidized-bed gasification plastic waste: plastic waste pulverized be the particle of diameter 5～10mm, add the unslaked lime that accounts for plastic waste massfraction 2～5%, plastic waste and material inlet (2) the feeder bottom of the mixture of giving birth to stone from described device (6), with volume fraction is that 80～90% water vapour and volume fraction are that the mixed gas that 10～20% air is formed is a vaporized chemical, manage in (8) jetting device through winding-up from the water vapour and the air blown pipe import (7) of device (6), controlled temperature is 500～700 ℃ of gasification plastic waste in fluidized-bed;
B. the thick gas of water vapour catforming hydrogen production: step a gasification generation is through the catalyzer support on device (6) top and every grey net (9) and beds (4), the water vapour catforming reaction further takes place, discharge the final gas products that is rich in hydrogen from pneumatic outlet (5), described catalyzer is a KF104 type methanol steam reforming catalyzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100452066A CN101139083A (en) | 2007-08-23 | 2007-08-23 | Devices for catalyzing manufacturing of hydrogen by using waste plastics and methods thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100452066A CN101139083A (en) | 2007-08-23 | 2007-08-23 | Devices for catalyzing manufacturing of hydrogen by using waste plastics and methods thereof |
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| Publication Number | Publication Date |
|---|---|
| CN101139083A true CN101139083A (en) | 2008-03-12 |
Family
ID=39191218
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100452066A Pending CN101139083A (en) | 2007-08-23 | 2007-08-23 | Devices for catalyzing manufacturing of hydrogen by using waste plastics and methods thereof |
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|---|---|
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515094A (en) * | 2011-12-16 | 2012-06-27 | 江苏四方锅炉有限公司 | Device and method for producing hydrogen by biomass |
| CN102659074A (en) * | 2012-05-17 | 2012-09-12 | 山东万丰煤化工设备制造有限公司 | Device for preparing hydrogen by utilizing catalytic pulverized coal gasification |
| CN102676232A (en) * | 2012-05-17 | 2012-09-19 | 山东万丰煤化工设备制造有限公司 | Method for preparing pulverized coal into hydrogen gas |
| CN103639172A (en) * | 2013-12-03 | 2014-03-19 | 内蒙古科技大学 | Method for performing high-temperature steam-air gasification disinfection and degradation on medical wastes |
| CN104690071A (en) * | 2013-08-27 | 2015-06-10 | 天紫环保投资控股有限公司 | Steam ejection type organic solid waste processor with circular tray |
| CN104774649A (en) * | 2015-03-31 | 2015-07-15 | 上海大学 | Method for recycling waste polyurethane in virtue of catalytic gasification technology |
| CN107755402A (en) * | 2016-08-18 | 2018-03-06 | 高和同盛环保科技发展(北京)有限公司 | Domestic waste catalyzing manufacturing of hydrogen new energy technology |
| CN111346590A (en) * | 2020-03-31 | 2020-06-30 | 上海岚泽能源科技有限公司 | Integrated reactor |
| CN114479949A (en) * | 2022-02-18 | 2022-05-13 | 河南科技大学 | Two-stage waste plastic thermal cracking device and thermal cracking system |
-
2007
- 2007-08-23 CN CNA2007100452066A patent/CN101139083A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515094A (en) * | 2011-12-16 | 2012-06-27 | 江苏四方锅炉有限公司 | Device and method for producing hydrogen by biomass |
| CN102659074A (en) * | 2012-05-17 | 2012-09-12 | 山东万丰煤化工设备制造有限公司 | Device for preparing hydrogen by utilizing catalytic pulverized coal gasification |
| CN102676232A (en) * | 2012-05-17 | 2012-09-19 | 山东万丰煤化工设备制造有限公司 | Method for preparing pulverized coal into hydrogen gas |
| CN104690071A (en) * | 2013-08-27 | 2015-06-10 | 天紫环保投资控股有限公司 | Steam ejection type organic solid waste processor with circular tray |
| CN103639172A (en) * | 2013-12-03 | 2014-03-19 | 内蒙古科技大学 | Method for performing high-temperature steam-air gasification disinfection and degradation on medical wastes |
| CN103639172B (en) * | 2013-12-03 | 2017-01-04 | 内蒙古科技大学 | Medical waste high-temperature steam-air gasification sterilization biodegrading process |
| CN104774649A (en) * | 2015-03-31 | 2015-07-15 | 上海大学 | Method for recycling waste polyurethane in virtue of catalytic gasification technology |
| CN107755402A (en) * | 2016-08-18 | 2018-03-06 | 高和同盛环保科技发展(北京)有限公司 | Domestic waste catalyzing manufacturing of hydrogen new energy technology |
| CN111346590A (en) * | 2020-03-31 | 2020-06-30 | 上海岚泽能源科技有限公司 | Integrated reactor |
| CN114479949A (en) * | 2022-02-18 | 2022-05-13 | 河南科技大学 | Two-stage waste plastic thermal cracking device and thermal cracking system |
| CN114479949B (en) * | 2022-02-18 | 2023-03-03 | 河南科技大学 | Two-stage waste plastic thermal cracking device and thermal cracking system |
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