KR101854623B1 - 중탄산암모늄 용액의 재생 방법 - Google Patents
중탄산암모늄 용액의 재생 방법 Download PDFInfo
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- KR101854623B1 KR101854623B1 KR1020160074676A KR20160074676A KR101854623B1 KR 101854623 B1 KR101854623 B1 KR 101854623B1 KR 1020160074676 A KR1020160074676 A KR 1020160074676A KR 20160074676 A KR20160074676 A KR 20160074676A KR 101854623 B1 KR101854623 B1 KR 101854623B1
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- ammonium bicarbonate
- ammonia
- bicarbonate solution
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- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 title claims abstract description 140
- 239000001099 ammonium carbonate Substances 0.000 title claims abstract description 135
- 229910000013 Ammonium bicarbonate Inorganic materials 0.000 title claims abstract description 134
- 235000012538 ammonium bicarbonate Nutrition 0.000 title claims abstract description 134
- 238000000034 method Methods 0.000 title claims abstract description 35
- 230000001172 regenerating effect Effects 0.000 title description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 249
- 239000000243 solution Substances 0.000 claims abstract description 147
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 124
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 98
- 238000004821 distillation Methods 0.000 claims abstract description 80
- 238000010521 absorption reaction Methods 0.000 claims abstract description 58
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 49
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 49
- 238000009833 condensation Methods 0.000 claims abstract description 39
- 230000005494 condensation Effects 0.000 claims abstract description 39
- 239000011259 mixed solution Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 68
- 239000006096 absorbing agent Substances 0.000 claims description 10
- 238000005406 washing Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 2
- 238000009292 forward osmosis Methods 0.000 abstract description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 abstract description 2
- 230000003204 osmotic effect Effects 0.000 description 47
- 238000011069 regeneration method Methods 0.000 description 14
- 239000012530 fluid Substances 0.000 description 13
- 239000012528 membrane Substances 0.000 description 13
- 239000007788 liquid Substances 0.000 description 9
- 238000000926 separation method Methods 0.000 description 8
- 230000001965 increasing effect Effects 0.000 description 7
- 150000003839 salts Chemical class 0.000 description 7
- 239000013535 sea water Substances 0.000 description 7
- 230000001939 inductive effect Effects 0.000 description 6
- 230000008929 regeneration Effects 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 230000006837 decompression Effects 0.000 description 4
- 239000002351 wastewater Substances 0.000 description 4
- 230000005611 electricity Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 239000013505 freshwater Substances 0.000 description 3
- 238000001223 reverse osmosis Methods 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 2
- 239000008235 industrial water Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000012808 vapor phase Substances 0.000 description 2
- OCKGFTQIICXDQW-ZEQRLZLVSA-N 5-[(1r)-1-hydroxy-2-[4-[(2r)-2-hydroxy-2-(4-methyl-1-oxo-3h-2-benzofuran-5-yl)ethyl]piperazin-1-yl]ethyl]-4-methyl-3h-2-benzofuran-1-one Chemical compound C1=C2C(=O)OCC2=C(C)C([C@@H](O)CN2CCN(CC2)C[C@H](O)C2=CC=C3C(=O)OCC3=C2C)=C1 OCKGFTQIICXDQW-ZEQRLZLVSA-N 0.000 description 1
- PRKQVKDSMLBJBJ-UHFFFAOYSA-N ammonium carbonate Chemical compound N.N.OC(O)=O PRKQVKDSMLBJBJ-UHFFFAOYSA-N 0.000 description 1
- 235000012501 ammonium carbonate Nutrition 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002357 osmotic agent Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 125000001453 quaternary ammonium group Chemical group 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
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-
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- B01D53/1456—Removing acid components
- B01D53/1475—Removing carbon dioxide
-
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Abstract
Description
도 2는 증류부가 상압 하에 수행되는 예시적인 중탄산암모늄 용액의 재생 방법를 나타낸 공정도이다.
도 3은 증류부가 상압 하에 수행되며, 도 2와 대비하여 암모니아 응축부에 추가적인 냉각 장치가 포함되는 예시적인 중탄산암모늄 용액의 재생 방법를 나타낸 공정도이다.
도 4는 증류부가 감압 하에 수행되는 예시적인 중탄산암모늄 용액의 재생 방법를 나타낸 공정도이다.
| 30℃ | 40℃ | 50℃ | 60℃ | 70℃ | 80℃ | |
| 중탄산암모늄(g) | 28.4 | 36.6 | 50 | 60 | 80 | 109 |
2: 처리수의 흐름
3: 희석된 중탄산암모늄 용액의 흐름 (3a, 3a' 및 3b는 흐름 (3)의 부분 흐름)
4: 가열된 중탄산암모늄 용액의 흐름
5: 증류부로부터 분리된 물 흐름
6: 냉각된 물 흐름
7: 제1 혼합용액 흐름
8: 냉각된 제1 혼합용액 흐름
9: 농축된 중탄산암모늄 용액 흐름
10: 냉각된 중탄산암모늄 용액 흐름 (10a 및 10b는 흐름 (10)의 부분 흐름)
11: 배출 가스 흐름
12: 세척수 흐름
13: 세척수 배출 흐름
100: 정삼투 장치 (100a는 처리수 구역, 100b는 삼투액 구역, 100c는 삼투막)
110: 증류부
120: 암모니아 응축부
130: 농축부
140: 흡수부
150: 세척부
160: 열교환기
170: 가열기 (재비기)
180, 190, 200: 냉각기
210: 감압장치
Claims (12)
- (A) 정삼투에 의해 희석된 중탄산암모늄 용액을 각각 증류부의 상부, 암모니아 응축부의 상부 및 흡수부의 상부로 공급하는 단계;
(B) 상기 증류부의 상부로 공급된 희석된 중탄산암모늄 용액을 증류하여 이산화탄소 및 암모니아를 포함하는 제1 혼합가스를 배출하고, 배출된 제1 혼합가스는 암모니아 응축부의 하부로 공급되는 단계;
(C) 상기 (B) 단계에서 암모니아 응축부의 하부로 공급된 제1 혼합가스는 상기 (A) 단계에서 암모니아 응축부의 상부로 공급된 희석된 중탄산암모늄 용액과 접촉하여 제1 혼합용액과 제2 혼합가스로 분리되고, 상기 제1 혼합용액은 흡수부의 상부로 공급되고 상기 제2 혼합가스는 흡수부의 하부로 공급되는 단계; 및
(D) 상기 (C) 단계에서 흡수부의 하부로 공급된 제2 혼합가스는 상기 (A) 단계에서 흡수부의 상부로 공급된 희석된 중탄산암모늄 용액 및 상기 (C) 단계에서 흡수부의 상부로 공급된 제1 혼합용액과 접촉하여 농축된 중탄산암모늄 용액을 회수하는 단계를 포함하고,
상기 증류부는 감압 하에 수행되며, 상기 증류부에서 생성된 제1 혼합가스는 상압으로 가압하여 암모니아 응축부로 공급되는 중탄산암모늄 용액을 재생하는 방법. - 청구항 1에 있어서,
몰 기준으로, 상기 제1 혼합용액은 이산화탄소보다 다량의 암모니아를 함유하고, 상기 제2 혼합가스는 암모니아보다 다량의 이산화탄소를 포함하는 것을 특징으로 하는 중탄산암모늄 용액을 재생하는 방법. - 청구항 2에 있어서,
상기 제1 혼합용액에 함유된 암모니아의 양은 상기 제1 혼합용액에 함유된 이산화탄소의 양의 100 내지 400 중량%이고, 상기 제2 혼합가스에 포함된 암모니아의 양은 상기 제2 혼합가스에 포함된 이산화탄소의 양의 5 내지 35 중량%인 것을 특징으로 하는 중탄산암모늄 용액을 재생하는 방법. - 청구항 1에 있어서,
상기 암모니아 응축부의 상부 온도는 60 내지 97℃가 되도록 수행되는 것을 특징으로 하는 중탄산암모늄 용액을 재생하는 방법. - 삭제
- 삭제
- 삭제
- 삭제
- 청구항 1에 있어서,
상기 증류부는 암모니아 응축부 및 흡수부와 분리된 장치 내에 존재하는 것을 특징으로 하는 중탄산암모늄 용액을 재생하는 방법. - 청구항 1에 있어서,
(E) 상기 흡수부에서 농축된 중탄산암모늄 용액으로 회수되지 않는 배출가스를 세척수로 세척하여 배출하는 단계를 더 포함하는 것을 특징으로 하는 중탄산암모늄 용액을 재생하는 방법. - 청구항 1에 있어서,
상기 증류부로 공급되는 희석된 중탄산암모늄 용액의 양은 전체 희석된 중탄산암모늄 용액의 양의 30 내지 75 중량%인 것을 특징으로 하는 중탄산암모늄 용액을 재생하는 방법. - 청구항 1에 있어서,
상기 암모니아 응축부로 공급되는 희석된 중탄산암모늄 용액은 전체 희석된 중탄산암모늄 용액의 양의 2 내지 40 중량%인 것을 특징으로 하는 중탄산암모늄 용액을 재생하는 방법.
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| KR1020160074676A KR101854623B1 (ko) | 2016-06-15 | 2016-06-15 | 중탄산암모늄 용액의 재생 방법 |
| US16/088,663 US10682609B2 (en) | 2016-06-15 | 2016-11-04 | Recovery method for ammonium bicarbonate solution |
| EP16905595.1A EP3421116B1 (en) | 2016-06-15 | 2016-11-04 | Recovery method for ammonium bicarbonate solution |
| PCT/KR2016/012696 WO2017217611A1 (ko) | 2016-06-15 | 2016-11-04 | 중탄산암모늄 용액의 재생 방법 |
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| EP (1) | EP3421116B1 (ko) |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3421116A1 (en) | 2019-01-02 |
| US10682609B2 (en) | 2020-06-16 |
| KR20170141520A (ko) | 2017-12-26 |
| US20190111390A1 (en) | 2019-04-18 |
| EP3421116B1 (en) | 2022-05-11 |
| WO2017217611A1 (ko) | 2017-12-21 |
| EP3421116A4 (en) | 2019-11-27 |
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