JP2021160981A - 硫黄含有組成物、脱硫生成物、クリンカー、及びセメント組成物、並びにこれらの製造方法 - Google Patents
硫黄含有組成物、脱硫生成物、クリンカー、及びセメント組成物、並びにこれらの製造方法 Download PDFInfo
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- 239000000203 mixture Substances 0.000 title claims abstract description 239
- 239000011593 sulfur Substances 0.000 title claims abstract description 210
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 210
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 207
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 126
- 239000004568 cement Substances 0.000 title claims description 181
- 238000006477 desulfuration reaction Methods 0.000 title claims description 127
- 230000023556 desulfurization Effects 0.000 title claims description 127
- 238000000034 method Methods 0.000 title abstract description 21
- 238000010438 heat treatment Methods 0.000 claims abstract description 96
- 239000002699 waste material Substances 0.000 claims abstract description 82
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 59
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 59
- 239000004033 plastic Substances 0.000 claims abstract description 13
- 229920003023 plastic Polymers 0.000 claims abstract description 13
- 239000003245 coal Substances 0.000 claims abstract description 10
- 239000002028 Biomass Substances 0.000 claims abstract description 9
- 229920000049 Carbon (fiber) Polymers 0.000 claims abstract description 9
- 239000004917 carbon fiber Substances 0.000 claims abstract description 9
- 239000002002 slurry Substances 0.000 claims description 116
- 239000007789 gas Substances 0.000 claims description 114
- 238000006243 chemical reaction Methods 0.000 claims description 81
- 239000002994 raw material Substances 0.000 claims description 72
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 claims description 54
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 claims description 39
- 238000013329 compounding Methods 0.000 claims description 27
- 235000010261 calcium sulphite Nutrition 0.000 claims description 16
- 150000001875 compounds Chemical class 0.000 claims description 16
- 238000002156 mixing Methods 0.000 claims description 16
- GBAOBIBJACZTNA-UHFFFAOYSA-L calcium sulfite Chemical compound [Ca+2].[O-]S([O-])=O GBAOBIBJACZTNA-UHFFFAOYSA-L 0.000 claims description 15
- 238000009472 formulation Methods 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 13
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 claims description 12
- 238000010298 pulverizing process Methods 0.000 claims description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 239000003208 petroleum Substances 0.000 claims description 8
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- JESHZQPNPCJVNG-UHFFFAOYSA-L magnesium;sulfite Chemical compound [Mg+2].[O-]S([O-])=O JESHZQPNPCJVNG-UHFFFAOYSA-L 0.000 claims description 6
- 235000010265 sodium sulphite Nutrition 0.000 claims description 6
- 239000000126 substance Substances 0.000 claims description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 4
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 4
- 150000001342 alkaline earth metals Chemical class 0.000 claims description 4
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 4
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 4
- 239000000470 constituent Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 230000001590 oxidative effect Effects 0.000 claims description 4
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 239000011701 zinc Substances 0.000 claims description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 3
- 238000007664 blowing Methods 0.000 claims description 3
- 239000000395 magnesium oxide Substances 0.000 claims description 3
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims 1
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003921 oil Substances 0.000 abstract 1
- 239000000047 product Substances 0.000 description 121
- 239000010440 gypsum Substances 0.000 description 49
- 229910052602 gypsum Inorganic materials 0.000 description 49
- 239000000428 dust Substances 0.000 description 31
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 description 24
- JOPOVCBBYLSVDA-UHFFFAOYSA-N chromium(6+) Chemical compound [Cr+6] JOPOVCBBYLSVDA-UHFFFAOYSA-N 0.000 description 22
- 239000002245 particle Substances 0.000 description 21
- 239000007787 solid Substances 0.000 description 21
- JGIATAMCQXIDNZ-UHFFFAOYSA-N calcium sulfide Chemical compound [Ca]=S JGIATAMCQXIDNZ-UHFFFAOYSA-N 0.000 description 20
- 238000002360 preparation method Methods 0.000 description 18
- OSGAYBCDTDRGGQ-UHFFFAOYSA-L calcium sulfate Chemical compound [Ca+2].[O-]S([O-])(=O)=O OSGAYBCDTDRGGQ-UHFFFAOYSA-L 0.000 description 17
- 238000010828 elution Methods 0.000 description 17
- 238000001816 cooling Methods 0.000 description 12
- 239000011398 Portland cement Substances 0.000 description 10
- 239000003513 alkali Substances 0.000 description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 9
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 9
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 description 8
- 239000000292 calcium oxide Substances 0.000 description 8
- -1 clinker Substances 0.000 description 8
- 239000000843 powder Substances 0.000 description 8
- 239000010802 sludge Substances 0.000 description 8
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 229910052804 chromium Inorganic materials 0.000 description 7
- 239000011651 chromium Substances 0.000 description 7
- 150000004683 dihydrates Chemical class 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 7
- 229940043430 calcium compound Drugs 0.000 description 6
- 150000001674 calcium compounds Chemical class 0.000 description 6
- 238000002485 combustion reaction Methods 0.000 description 6
- 238000003991 Rietveld refinement Methods 0.000 description 5
- 239000006227 byproduct Substances 0.000 description 5
- 235000010216 calcium carbonate Nutrition 0.000 description 5
- 230000018044 dehydration Effects 0.000 description 5
- 238000006297 dehydration reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 150000004763 sulfides Chemical class 0.000 description 5
- 125000000101 thioether group Chemical group 0.000 description 5
- 238000005406 washing Methods 0.000 description 5
- 150000001339 alkali metal compounds Chemical class 0.000 description 4
- 150000001341 alkaline earth metal compounds Chemical class 0.000 description 4
- 150000008064 anhydrides Chemical class 0.000 description 4
- 239000011575 calcium Substances 0.000 description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 238000001035 drying Methods 0.000 description 4
- 238000001694 spray drying Methods 0.000 description 4
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 3
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 3
- 239000002253 acid Substances 0.000 description 3
- 210000004556 brain Anatomy 0.000 description 3
- 230000005587 bubbling Effects 0.000 description 3
- 238000001354 calcination Methods 0.000 description 3
- ZOMBKNNSYQHRCA-UHFFFAOYSA-J calcium sulfate hemihydrate Chemical compound O.[Ca+2].[Ca+2].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O ZOMBKNNSYQHRCA-UHFFFAOYSA-J 0.000 description 3
- 239000000460 chlorine Substances 0.000 description 3
- 229910052801 chlorine Inorganic materials 0.000 description 3
- 239000010419 fine particle Substances 0.000 description 3
- 238000010304 firing Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 229910001385 heavy metal Inorganic materials 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000003647 oxidation Effects 0.000 description 3
- 238000007254 oxidation reaction Methods 0.000 description 3
- 239000002689 soil Substances 0.000 description 3
- 150000003463 sulfur Chemical class 0.000 description 3
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 2
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000002956 ash Substances 0.000 description 2
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 description 2
- 239000000920 calcium hydroxide Substances 0.000 description 2
- 235000011116 calcium hydroxide Nutrition 0.000 description 2
- 229910001861 calcium hydroxide Inorganic materials 0.000 description 2
- 235000011132 calcium sulphate Nutrition 0.000 description 2
- 150000001805 chlorine compounds Chemical class 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- 150000002484 inorganic compounds Chemical class 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- QENHCSSJTJWZAL-UHFFFAOYSA-N magnesium sulfide Chemical compound [Mg+2].[S-2] QENHCSSJTJWZAL-UHFFFAOYSA-N 0.000 description 2
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 2
- 238000000634 powder X-ray diffraction Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910052979 sodium sulfide Inorganic materials 0.000 description 2
- GRVFOGOEDUUMBP-UHFFFAOYSA-N sodium sulfide (anhydrous) Chemical compound [Na+].[Na+].[S-2] GRVFOGOEDUUMBP-UHFFFAOYSA-N 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 125000004434 sulfur atom Chemical group 0.000 description 2
- WKBPZYKAUNRMKP-UHFFFAOYSA-N 1-[2-(2,4-dichlorophenyl)pentyl]1,2,4-triazole Chemical compound C=1C=C(Cl)C=C(Cl)C=1C(CCC)CN1C=NC=N1 WKBPZYKAUNRMKP-UHFFFAOYSA-N 0.000 description 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 description 1
- 239000004280 Sodium formate Substances 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 229910052793 cadmium Inorganic materials 0.000 description 1
- BDOSMKKIYDKNTQ-UHFFFAOYSA-N cadmium atom Chemical compound [Cd] BDOSMKKIYDKNTQ-UHFFFAOYSA-N 0.000 description 1
- NKWPZUCBCARRDP-UHFFFAOYSA-L calcium bicarbonate Chemical compound [Ca+2].OC([O-])=O.OC([O-])=O NKWPZUCBCARRDP-UHFFFAOYSA-L 0.000 description 1
- 229910000020 calcium bicarbonate Inorganic materials 0.000 description 1
- 239000001110 calcium chloride Substances 0.000 description 1
- 229910001628 calcium chloride Inorganic materials 0.000 description 1
- 235000011148 calcium chloride Nutrition 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- LCACZBGLAYXOJO-UHFFFAOYSA-N calcium;sulfanylideneiron Chemical compound [Ca].[Fe]=S LCACZBGLAYXOJO-UHFFFAOYSA-N 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000009614 chemical analysis method Methods 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- MAHNFPMIPQKPPI-UHFFFAOYSA-N disulfur Chemical compound S=S MAHNFPMIPQKPPI-UHFFFAOYSA-N 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000010881 fly ash Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 150000004679 hydroxides Chemical class 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- 235000012254 magnesium hydroxide Nutrition 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical class C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- 229910000027 potassium carbonate Inorganic materials 0.000 description 1
- 235000011181 potassium carbonates Nutrition 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 229940086066 potassium hydrogencarbonate Drugs 0.000 description 1
- 235000011118 potassium hydroxide Nutrition 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000017557 sodium bicarbonate Nutrition 0.000 description 1
- 229910000030 sodium bicarbonate Inorganic materials 0.000 description 1
- 229910000029 sodium carbonate Inorganic materials 0.000 description 1
- 235000017550 sodium carbonate Nutrition 0.000 description 1
- 239000001509 sodium citrate Substances 0.000 description 1
- NLJMYIDDQXHKNR-UHFFFAOYSA-K sodium citrate Chemical compound O.O.[Na+].[Na+].[Na+].[O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O NLJMYIDDQXHKNR-UHFFFAOYSA-K 0.000 description 1
- 235000011083 sodium citrates Nutrition 0.000 description 1
- HLBBKKJFGFRGMU-UHFFFAOYSA-M sodium formate Chemical compound [Na+].[O-]C=O HLBBKKJFGFRGMU-UHFFFAOYSA-M 0.000 description 1
- 235000019254 sodium formate Nutrition 0.000 description 1
- 235000011121 sodium hydroxide Nutrition 0.000 description 1
- 238000007655 standard test method Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 239000010920 waste tyre Substances 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
Abstract
【解決手段】硫黄含有廃棄物と、紙、廃プラスチック、炭素繊維、バイオマス、石炭及び石油からなる群より選ばれる少なくとも一種を含む炭素源と、を含む配合物を、温度500〜1500℃の温度域で加熱して還元性の硫黄含有組成物を得る加熱工程を有し、加熱工程において配合物を昇温して配合物が500℃以上の温度域に到達するときに、配合物は、硫黄含有廃棄物に対して炭素源を合計で10質量%以上含む、硫黄含有組成物の製造方法を提供する。
【選択図】なし
Description
2CaSO4+C→ 2CaS+2CO2 (1)
CaSO4+CaS→ 2CaO+2SO2 (2)
硫化物の含有量/硫化物の分子量×硫化物中の硫黄原子の数×硫黄の分子量
=硫化物形態の硫黄の含有量
以下の原材料を準備した。
(1)廃石膏ボード破砕品
(2)廃プラスチック(RPF)
[CaSの含有量]/[CaSの分子量:72]×[CaSの硫黄原子の数:1]×[Sの分子量:32]=[硫化物形態の硫黄の含有量]
以下の原材料を準備した。
(1)廃石膏ボード破砕品
(2)おが屑(集成材)
CaSO4+2C→ CaS+2CO2 (1)
3CaSO4+CaS→ 4CaO+4SO2 (2)
Claims (16)
- 硫黄含有廃棄物と、紙、廃プラスチック、炭素繊維、バイオマス、石炭及び石油からなる群より選ばれる少なくとも一種を含む炭素源と、を含む配合物を、温度500〜1500℃の温度域で加熱して還元性の硫黄含有組成物を得る加熱工程を有し、
前記加熱工程において、前記配合物を昇温して前記配合物が500℃以上の温度域に到達するときに、前記配合物は、前記硫黄含有廃棄物に対して前記炭素源を合計で10質量%以上含む、硫黄含有組成物の製造方法。 - 前記加熱工程の加熱前の前記配合物において、硫黄含有廃棄物100質量部に対する前記炭素源の配合量が10〜1000質量部である、請求項1に記載の硫黄含有組成物の製造方法。
- 前記硫黄含有組成物における未燃炭素の含有量が0.01〜10質量%である、請求項1又は2に記載の硫黄含有組成物の製造方法。
- 前記硫黄含有組成物は硫化物を含み、
前記硫化物は、構成元素として、アルカリ土類金属、鉄、亜鉛、アルミニウム及び銅からなる群より選ばれる少なくとも一種の元素を含む、請求項1〜3のいずれか一項に記載の硫黄含有組成物の製造方法。 - 前記硫黄含有組成物は、硫化物を含み、前記硫化物として含まれる硫黄の含有量が0.1〜44質量%である、請求項1〜4のいずれか一項に記載の硫黄含有組成物の製造方法。
- 前記加熱工程における雰囲気は、可燃性有機物、一酸化炭素、アンモニア及び水素からなる群より選ばれる少なくとも一種を含む還元雰囲気である、請求項1〜5のいずれか一項に記載の硫黄含有組成物の製造方法。
- 前記加熱工程の前に前記硫黄含有廃棄物を粉砕する廃棄物粉砕工程を有する、
請求項1〜6のいずれか一項に記載の硫黄含有組成物の製造方法。 - 前記加熱工程の前に前記硫黄含有廃棄物と炭素源を混合しながら粉砕する廃棄物粉砕工程を有する、請求項1〜6のいずれか一項に記載の硫黄含有組成物の製造方法。
- 請求項1〜8のいずれか一項に記載の製造方法における前記加熱工程で発生する、亜硫酸ガス濃度が100ppm〜10%である排ガスを、アルカリ源と水とを含む原料スラリーと接触させて脱硫生成物を得る反応工程を有する、脱硫生成物の製造方法。
- 前記脱硫生成物が、亜硫酸カルシウム、亜硫酸ナトリウム、亜硫酸マグネシウム、重亜硫酸カルシウム、重亜硫酸ナトリウム及び重亜硫酸マグネシウムからなる群より選ばれる少なくとも一種を含む、請求項9に記載の脱硫生成物の製造方法。
- 請求項1〜8のいずれか一項に記載の製造方法における前記加熱工程、及び/又は、前請求項9又は10に記載の製造方法における前記反応工程で発生する排ガスを、セメントクリンカー又はマグネシアクリンカーを製造するキルン内に吹き込む導入工程を有する、クリンカーの製造方法。
- 請求項1〜8のいずれか一項に記載の製造方法で得られる硫黄含有組成物。
- 請求項9又は10に記載の製造方法で得られる脱硫生成物。
- 請求項1〜8のいずれか一項に記載の製造方法で得られる硫黄含有組成物と、セメントクリンカーと、を用いてセメント組成物を得る配合工程を有する、セメント組成物の製造方法。
- 請求項1〜8のいずれか一項に記載の製造方法で得られる硫黄含有組成物、請求項9又は10に記載の製造方法で得られる脱硫生成物、及び当該脱硫生成物を酸化して得られる硫酸塩の少なくとも一種と、セメントクリンカーと、を用いてセメント組成物を得る配合工程を有する、セメント組成物の製造方法。
- 請求項14又は15に記載の製造方法で得られるセメント組成物。
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