CN105238497A - Method for preparing oxygen carrier by using phosphogypsum, and applications of carrier - Google Patents
Method for preparing oxygen carrier by using phosphogypsum, and applications of carrier Download PDFInfo
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- CN105238497A CN105238497A CN201510625445.3A CN201510625445A CN105238497A CN 105238497 A CN105238497 A CN 105238497A CN 201510625445 A CN201510625445 A CN 201510625445A CN 105238497 A CN105238497 A CN 105238497A
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- Prior art keywords
- phosphogypsum
- oxygen carrier
- carrier
- prepare
- temperature
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Links
- PASHVRUKOFIRIK-UHFFFAOYSA-L calcium sulfate dihydrate Chemical compound O.O.[Ca+2].[O-]S([O-])(=O)=O PASHVRUKOFIRIK-UHFFFAOYSA-L 0.000 title claims abstract description 73
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 53
- 239000001301 oxygen Substances 0.000 title claims abstract description 53
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 45
- 238000000034 method Methods 0.000 title claims abstract description 23
- 230000008929 regeneration Effects 0.000 claims abstract description 19
- 238000011069 regeneration method Methods 0.000 claims abstract description 19
- 239000012752 auxiliary agent Substances 0.000 claims abstract description 13
- 239000002245 particle Substances 0.000 claims abstract description 12
- 239000007789 gas Substances 0.000 claims abstract description 11
- 230000003647 oxidation Effects 0.000 claims abstract description 8
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 8
- 238000002156 mixing Methods 0.000 claims abstract description 7
- 238000007605 air drying Methods 0.000 claims abstract description 6
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000004480 active ingredient Substances 0.000 claims description 12
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 10
- 150000002926 oxygen Chemical class 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000005469 granulation Methods 0.000 claims description 5
- 230000003179 granulation Effects 0.000 claims description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 3
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 3
- 235000011089 carbon dioxide Nutrition 0.000 claims description 3
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 2
- 229960004424 carbon dioxide Drugs 0.000 claims description 2
- 238000000746 purification Methods 0.000 claims description 2
- 239000002699 waste material Substances 0.000 abstract description 5
- 239000002910 solid waste Substances 0.000 abstract description 4
- 229910001385 heavy metal Inorganic materials 0.000 abstract description 2
- 229910000278 bentonite Inorganic materials 0.000 abstract 1
- 239000000440 bentonite Substances 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- 238000001035 drying Methods 0.000 abstract 1
- 239000012535 impurity Substances 0.000 abstract 1
- 238000000465 moulding Methods 0.000 abstract 1
- 150000002894 organic compounds Chemical class 0.000 abstract 1
- 239000000047 product Substances 0.000 description 22
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 10
- 238000006243 chemical reaction Methods 0.000 description 9
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 6
- 239000000446 fuel Substances 0.000 description 6
- 230000018109 developmental process Effects 0.000 description 5
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 4
- 239000010440 gypsum Substances 0.000 description 3
- 229910052602 gypsum Inorganic materials 0.000 description 3
- 239000011574 phosphorus Substances 0.000 description 3
- 229910052698 phosphorus Inorganic materials 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 150000004683 dihydrates Chemical class 0.000 description 2
- 239000003337 fertilizer Substances 0.000 description 2
- 235000019634 flavors Nutrition 0.000 description 2
- 239000011777 magnesium Substances 0.000 description 2
- 239000002686 phosphate fertilizer Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000009257 reactivity Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011575 calcium Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- BHEPBYXIRTUNPN-UHFFFAOYSA-N hydridophosphorus(.) (triplet) Chemical compound [PH] BHEPBYXIRTUNPN-UHFFFAOYSA-N 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000000543 intermediate Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- -1 pottery Substances 0.000 description 1
- 238000006722 reduction reaction Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical compound S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 235000010269 sulphur dioxide Nutrition 0.000 description 1
- 239000004291 sulphur dioxide Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
- 238000009941 weaving Methods 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Landscapes
- Processing Of Solid Wastes (AREA)
- Treating Waste Gases (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The present invention relates to a method for preparing an oxygen carrier by using phosphogypsum, and applications of the carrier, and belongs to the technical field of solid waste resources. The method comprises: carrying out nature air-drying on phosphogypsum, adding bentonite to the phosphogypsum, completely and uniformly mixing, granulating, and drying to obtain phosphogypsum particles; introducing CH4 or CO gas to the obtained phosphogypsum particles, carrying out pre-reduction for 30-120 min at a temperature of 800-1100 DEG C to obtain a reduction product, and removing volatile impurities (heavy metals and organic compounds); carrying out oxidation regeneration on the obtained reduction product for 30-120 min at a temperature of 700-900 DEG C under introduction of 50-200 ml/min of anhydrous air atmosphere to obtain a regeneration product; and adding a carrier to the obtained regeneration product, completely and uniformly mixing an auxiliary agent and an active component to obtain a mixed product, carrying out molding processing on the mixed product according to the actual demand, and calcining for 6-12 at a temperature of 700-900 DEG C to obtain the oxygen carrier. A purpose of the present invention is to use the phosphogypsum as the oxygen carrier so as to achieve a lot of utilization of the waste resources.
Description
Technical field
The present invention relates to a kind of phosphogypsum that utilizes and prepare the method for oxygen carrier and the application of this oxygen carrier, belong to solid waste resource technical field.
Background technology
Phosphoric acid is as a kind of important intermediates, be widely used in the industries such as chemical fertilizer, pottery, glass, weaving, food, along with the development of phosphorus chemical industry, developing rapidly particularly along with agriculture aspect high concentration phosphorus composite fertilizer industry, in Wet Processes of Phosphoric Acid, byproduct phosphogypsum produces in a large number as a kind of industrial residue and stacks, but its practical efficiency is very low.Phosphogypsum is as a kind of danger wastes; store up in a large number and not only need the human and material resources of at substantial and financial resources but also great harm is also existed to environment; although the utilization approaches of phosphogypsum is a lot; but due to the natural phosphogypsum aboundresources of China; the development of phosphogypsum resource technology relatively lags behind; comprehensive utilization ratio is not high; the environmental hazard brought in the face of a large amount of stackings of waste ardealite instantly and financial loss, can the mass-producing that realize phosphogypsum utilize and become the key weighing whole sulphur dioxide of phosphor chemical industry Sustainable development.
The solid waste that phosphogypsum gives off when being industrial production phosphate fertilizer, phosphoric acid, often produces 1t(P
2o
5meter) phosphoric acid about produces 5 ~ 6t phosphogypsum.Phosphogypsum divides dihydrate gypsum (CaSO
42H
2and semi-hydrated gypsum (CaSO O)
41/2H
2o), in the majority with dihydrate gypsum.Phosphogypsum also contains (see table 1) such as a small amount of phosphoric acid, silicon, iron, magnesium, aluminium, organic impuritys except principal constituent calcium sulfate.T(is with P for Wet-Process Phosphoric Acid in The World gross annual output amount about 2.6 hundred million
2o
5meter), by-product phosphogypsum about 1.5 hundred million t, utilization ratio only 4.3 ~ 4.6%.Estimate that China was to phosphate fertilizer (P in 2016
2o
5) demand will reach 1.4 hundred million t, phosphogypsum annual emissions will more than 2,000 ten thousand t when the time comes, and utilization ratio is only 2%-3%.Stack phosphogypsum and not only occupy a large amount of soil, and cause serious environmental pollution, be therefore necessary the Appropriate application approach seeking phosphogypsum, to realize the scientific development of phosphorus chemical industry.
In the content of element each in table 1 phosphogypsum
| Element | Mass content/% |
| O | 45.6749 |
| Ca | 26.9908 |
| S | 15.6634 |
| F | 6.3589 |
| B | 2.7917 |
| C | 1.1688 |
| Na | 0.6139 |
| Mg | 0.2316 |
| Fe | 0.1622 |
| Cl | 0.1218 |
| Al | 0.0979 |
| Zn | 0.0768 |
| Cr | 0.0663 |
| Si | 0.0145 |
| As | 0.0139 |
| Sn | 0.0129 |
| Sr | 0.0074 |
| K | 0.0071 |
| Br | 0.0055 |
| P | 0.0044 |
| Ni | 0.0035 |
| Cu | 0.0017 |
Produce the obnoxious flavoures such as a large amount of carbonic acid gas, oxynitride and oxysulfide in the fossil energy combustion processeses such as coal, oil, Sweet natural gas, exacerbate the pollution of Global warming and ecotope.In order to reduce the discharge of obnoxious flavour in combustion processes, burning chemistry chains (CLC) technology is proposed.CLC is the New-type fuel combustion technology set up based on chemical chain (CL) technology, and its principle is the burning directly contacted traditional fuel and air is two gas-solid circulating reactions by the role transformation of oxygen carrier, i.e. reduction reaction (the M of oxygen carrier and fuel
xo
y+ δ CH
4→ M
xo
y-δ+ δ (2H
2+ CO) or M
xo
y+ δ CO → M
xo
y-δ+ δ CO
2) and the oxidation regeneration of oxygen carrier and air react (M
xo
y-δ+ δ 1/2O
2→ M
xo
y), two reactions are carried out respectively in fuel reactor and air reactor, are delivered in fuel by the oxygen in air by oxygen carrier.This technology is that one can realize CO
2the combustion technology that interior separation and fuel-efficient utilize, in recent years by the extensive concern of scholars.
Main component due to phosphogypsum is CaSO
4massfraction accounts for 50 ~ 80% of phosphogypsum, secondly also has the Fe of about 4%
2o
3, the Main chemical component of phosphogypsum and content are in table 2.With CaSO
4and Fe
2o
3for the CLC oxygen carrier of chief active species, its reactivity worth, due to its superior reactivity worth, is considered to the class oxygen carrier having very much industrial prospect, and the principle that its CLC reacts is as shown in reaction formula (1)-(3).But realize the industrial applications of phosphogypsum oxygen carrier, the technology must finding a kind of cheapness realizes the mass-producing preparation of oxygen carrier.
The Main chemical component of table 2 phosphogypsum
Recovery step (fuel reactor): CaSO
4+ CH
4→ CaS+2H
2o+CO
2(thermo-negative reaction)
CaSO
4+ 4CO → CaS+4CO
2(thermo-negative reaction)
Oxidation step (air reactor): CaS+2O
2→ CaSO
4+ 4CO
2(thermopositive reaction).
Summary of the invention
The phosphogypsum existed for above-mentioned prior art brings problem in economy and environment and harm in post-processed, the invention provides a kind of phosphogypsum that utilizes and prepares the method for oxygen carrier and the application of this oxygen carrier.The present invention seeks to utilize phosphogypsum as oxygen carrier to realize a large amount of utilizations of waste material, the manpower brought when not only avoid phosphogypsum process, financial resources are wasted, and decreasing the pollution taking a large amount of soil and ecotope is caused, the present invention is achieved through the following technical solutions.
Utilize phosphogypsum to prepare a method for oxygen carrier, its concrete steps are as follows:
(1) be first 20wt% by phosphogypsum natural air drying to water ratio, then granulation is carried out after the wilkinite adding phosphogypsum quality 0.6% in phosphogypsum fully mixes, then dry 4 ~ 10h at temperature is 150 ~ 280 DEG C, chooses 60 ~ 80 object phosphogypsum particles;
(2) the phosphogypsum particle obtained to step (1) passes into the CH of 50 ~ 200ml/min
4or CO gas, under temperature is 800 ~ 1100 DEG C of conditions, prereduction 30 ~ 120min obtains reduzate, removes volatile impunty (heavy metal, organism);
(3) reduzate step (2) obtained passing into 50 ~ 200ml/min anhydrous air atmosphere, temperature be 700 ~ 900 DEG C of conditions under oxidation regeneration 30 ~ 120min obtain regeneration product;
(4) add carrier in regeneration product step (3) obtained, auxiliary agent obtains mix products after mixing with active ingredient, wherein the add-on of carrier is prepare gained oxygen carrier quality less than 70%, the add-on of auxiliary agent is prepare gained oxygen carrier quality less than 5%, active ingredient carries out proportioning with arbitrary proportion according to the actual requirements, after mix products carries out forming process according to the actual requirements, under temperature is 700 ~ 900 DEG C of conditions, roasting 6 ~ 12h prepares oxygen carrier.
In described step (4), carrier is SiO
2or Al
2o
3.
In described step (4), auxiliary agent is KOH or K
2cO
3.
In described step (4), active ingredient is Fe
2o
3, NiO, wustite or perovskite oxide.
This oxygen carrier is applied in the burning of methane chemical chain, the purification of coke-oven gas or collecting carbonic anhydride.
The invention has the beneficial effects as follows:
(1) recycling to waste ardealite in phosphorous chemical industry industry is achieved, the loss economically avoiding a large amount of phosphogypsum stacking process to bring and harm environmentally.
(2) be that CLC oxygen carrier prepared by raw material with phosphogypsum, greatly reduce oxygen carrier preparation cost, for oxygen carrier mass-producing preparation provides a kind of raw material cheap and easy to get, and the favourable development facilitating CLC technology.
(3) CLC technology is combined with the recycling of phosphogypsum, achieve solid waste resource recovery and utilize, improve the utilization ratio of natural resources and energy resources.
Embodiment
Below in conjunction with embodiment, the invention will be further described.
Embodiment 1
This utilizes phosphogypsum to prepare the method for oxygen carrier, and its concrete steps are as follows:
(1) be first 20wt% by 1kg water ratio 30wt% phosphogypsum natural air drying to water ratio, then granulation is carried out after the wilkinite adding phosphogypsum quality 0.6% in phosphogypsum fully mixes, then dry 4h at temperature is 280 DEG C, choose 80 object phosphogypsum particles, wherein in phosphogypsum, the massfraction of CaO is 38%;
(2) the phosphogypsum particle obtained to step (1) passes into the CH of 200ml/min
4gas, under temperature is 1100 DEG C of conditions, prereduction 120min obtains reduzate;
(3) reduzate step (2) obtained passing into 200ml/min anhydrous air atmosphere, temperature be 900 DEG C of conditions under oxidation regeneration 120min obtain regeneration product;
(4) add carrier in regeneration product step (3) obtained, auxiliary agent obtains mix products after mixing with active ingredient, wherein carrier is SiO
2, add-on is prepare gained oxygen carrier quality 70%, and auxiliary agent is KOH, and add-on is prepare gained oxygen carrier quality 5%, and active ingredient is Fe
2o
3, wherein Fe
2o
3add-on and carrier quality than being 2:1, after mix products carries out forming process according to the actual requirements (being finely ground to granularity is 100 μm), under temperature is 700 DEG C of conditions, roasting 12h prepares oxygen carrier.
This oxygen carrier is carrying out in the reaction of burning chemistry chains with methane, CO in product gas
2concentration reach 87.3wt%, also have a small amount of CO to produce in product.
Embodiment 2
This utilizes phosphogypsum to prepare the method for oxygen carrier, and its concrete steps are as follows:
(1) be first 20wt% by 1kg water ratio 30wt% phosphogypsum natural air drying to water ratio, then granulation is carried out after the wilkinite adding phosphogypsum quality 0.6% in phosphogypsum fully mixes, then dry 6h at temperature is 230 DEG C, choose 70 object phosphogypsum particles, wherein in phosphogypsum, the massfraction of CaO is 33%;
(2) the phosphogypsum particle obtained to step (1) passes into the CH of 150ml/min
4gas, under temperature is 1000 DEG C of conditions, prereduction 90min obtains reduzate;
(3) reduzate step (2) obtained passing into 150ml/min anhydrous air atmosphere, temperature be 800 DEG C of conditions under oxidation regeneration 90min obtain regeneration product;
(4) add carrier in regeneration product step (3) obtained, auxiliary agent obtains mix products after mixing with active ingredient, wherein carrier is Al
2o
3, add-on is prepare gained oxygen carrier quality 60%, and auxiliary agent is K
2cO
3add-on is prepare gained oxygen carrier quality 4%, active ingredient is NiO, wherein the add-on of NiO is 1:1 with other constituent masses ratio, after mix products carries out forming process according to the actual requirements (being finely ground to granularity is 100 μm), under temperature is 800 DEG C of conditions, roasting 10h prepares oxygen carrier.
This oxygen carrier is carrying out in the reaction of burning chemistry chains with methane, CO in product gas
2concentration reach 85.5wt%, also have a small amount of CO to produce in product.
Embodiment 3
This utilizes phosphogypsum to prepare the method for oxygen carrier, and its concrete steps are as follows:
(1) be first 20wt% by 1kg water ratio 30wt% phosphogypsum natural air drying to water ratio, then granulation is carried out after the wilkinite adding phosphogypsum quality 0.6% in phosphogypsum fully mixes, then dry 10h at temperature is 150 DEG C, choose 60 object phosphogypsum particles, wherein in phosphogypsum, the massfraction of CaO is 33%;
(2) the phosphogypsum particle obtained to step (1) passes into the CO gas of 50ml/min, and under temperature is 800 DEG C of conditions, prereduction 30min obtains reduzate;
(3) reduzate step (2) obtained passing into 50ml/min anhydrous air atmosphere, temperature be 700 DEG C of conditions under oxidation regeneration 30min obtain regeneration product;
(4) add carrier in regeneration product step (3) obtained, auxiliary agent obtains mix products after mixing with active ingredient, wherein carrier is Al
2o
3, add-on is prepare gained oxygen carrier quality 60%, and auxiliary agent is KOH, and add-on is prepare gained oxygen carrier quality 5%, and active ingredient is NiFe
2o
4, wherein NiFe
2o
4add-on and oxygen carrier mass ratio be 1:2, after mix products carries out forming process according to the actual requirements (being finely ground to granularity is 100 μm), under temperature is 900 DEG C of conditions, roasting 6h prepares oxygen carrier.
This oxygen carrier is carrying out in the reaction of burning chemistry chains with methane, CO in product gas
2concentration reach 83.8wt%, also have a small amount of CO to produce in product.
Above the specific embodiment of the present invention is explained in detail, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from present inventive concept.
Claims (5)
1. utilize phosphogypsum to prepare a method for oxygen carrier, it is characterized in that concrete steps are as follows:
(1) be first 20wt% by phosphogypsum natural air drying to water ratio, then granulation is carried out after the wilkinite adding phosphogypsum quality 0.6% in phosphogypsum fully mixes, then dry 4 ~ 10h at temperature is 150 ~ 280 DEG C, chooses 60 ~ 80 object phosphogypsum particles;
(2) the phosphogypsum particle obtained to step (1) passes into the CH of 50 ~ 200ml/min
4or CO gas, under temperature is 800 ~ 1100 DEG C of conditions, prereduction 30 ~ 120min obtains reduzate;
(3) reduzate step (2) obtained passing into 50 ~ 200ml/min anhydrous air atmosphere, temperature be 700 ~ 900 DEG C of conditions under oxidation regeneration 30 ~ 120min obtain regeneration product;
(4) add carrier in regeneration product step (3) obtained, auxiliary agent obtains mix products after mixing with active ingredient, wherein the add-on of carrier is prepare gained oxygen carrier quality less than 70%, the add-on of auxiliary agent is prepare gained oxygen carrier quality less than 5%, active ingredient carries out proportioning with arbitrary proportion according to the actual requirements, after mix products carries out forming process according to the actual requirements, under temperature is 700 ~ 900 DEG C of conditions, roasting 6 ~ 12h prepares oxygen carrier.
2. the method utilizing phosphogypsum to prepare oxygen carrier according to claim 1, is characterized in that: in described step (4), carrier is SiO
2or Al
2o
3.
3. the method utilizing phosphogypsum to prepare oxygen carrier according to claim 1, is characterized in that: in described step (4), auxiliary agent is KOH or K
2cO
3.
4. the method utilizing phosphogypsum to prepare oxygen carrier according to claim 1, is characterized in that: in described step (4), active ingredient is Fe
2o
3, NiO, wustite or perovskite oxide.
5. according to an application for the arbitrarily described oxygen carrier utilizing phosphogypsum to prepare of Claims 1-4, it is characterized in that: this oxygen carrier is applied in the fields such as the burning of methane chemical chain, the purification of coke-oven gas or collecting carbonic anhydride.
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|---|---|---|---|
| CN201510625445.3A CN105238497B (en) | 2015-09-28 | 2015-09-28 | A kind of application for the method and the carrier of oxygen that the carrier of oxygen is prepared using ardealite |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510625445.3A CN105238497B (en) | 2015-09-28 | 2015-09-28 | A kind of application for the method and the carrier of oxygen that the carrier of oxygen is prepared using ardealite |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112264019A (en) * | 2020-11-16 | 2021-01-26 | 南京工业大学 | Synthetic carbon nanotube catalyst with waste gypsum as carrier and preparation method and application thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301744A (en) * | 2013-06-17 | 2013-09-18 | 青岛科技大学 | Desulfurization device and method for preparing sulfur particles by removing SO2 from flue gas |
| CN104164273A (en) * | 2014-08-25 | 2014-11-26 | 中国科学院青岛生物能源与过程研究所 | Method for preparing calcium-based oxygen carrier |
-
2015
- 2015-09-28 CN CN201510625445.3A patent/CN105238497B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103301744A (en) * | 2013-06-17 | 2013-09-18 | 青岛科技大学 | Desulfurization device and method for preparing sulfur particles by removing SO2 from flue gas |
| CN104164273A (en) * | 2014-08-25 | 2014-11-26 | 中国科学院青岛生物能源与过程研究所 | Method for preparing calcium-based oxygen carrier |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112264019A (en) * | 2020-11-16 | 2021-01-26 | 南京工业大学 | Synthetic carbon nanotube catalyst with waste gypsum as carrier and preparation method and application thereof |
| CN112264019B (en) * | 2020-11-16 | 2023-10-13 | 南京工业大学 | Synthetic carbon nanotube catalyst taking waste gypsum as carrier, and preparation method and application thereof |
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| Publication number | Publication date |
|---|---|
| CN105238497B (en) | 2017-12-01 |
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