JP6504613B2 - 尿素加水分解装置 - Google Patents
尿素加水分解装置 Download PDFInfo
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- JP6504613B2 JP6504613B2 JP2016151707A JP2016151707A JP6504613B2 JP 6504613 B2 JP6504613 B2 JP 6504613B2 JP 2016151707 A JP2016151707 A JP 2016151707A JP 2016151707 A JP2016151707 A JP 2016151707A JP 6504613 B2 JP6504613 B2 JP 6504613B2
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- 239000004202 carbamide Substances 0.000 title claims description 77
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims description 76
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 188
- 239000003054 catalyst Substances 0.000 claims description 131
- WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical compound O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 0.000 claims description 119
- 238000006460 hydrolysis reaction Methods 0.000 claims description 107
- 230000007062 hydrolysis Effects 0.000 claims description 106
- 229910021529 ammonia Inorganic materials 0.000 claims description 92
- 238000010438 heat treatment Methods 0.000 claims description 74
- 239000007921 spray Substances 0.000 claims description 52
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 claims description 49
- 239000007789 gas Substances 0.000 claims description 28
- 238000006243 chemical reaction Methods 0.000 claims description 18
- 238000012856 packing Methods 0.000 claims description 15
- 230000003301 hydrolyzing effect Effects 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 11
- 238000005507 spraying Methods 0.000 claims description 11
- 238000002485 combustion reaction Methods 0.000 claims description 8
- 238000007664 blowing Methods 0.000 claims description 6
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 239000000919 ceramic Substances 0.000 claims description 4
- 238000011049 filling Methods 0.000 claims description 3
- 230000008929 regeneration Effects 0.000 description 44
- 238000011069 regeneration method Methods 0.000 description 44
- 239000000945 filler Substances 0.000 description 26
- 239000006227 byproduct Substances 0.000 description 23
- 239000007864 aqueous solution Substances 0.000 description 16
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 10
- 238000001514 detection method Methods 0.000 description 10
- 238000011144 upstream manufacturing Methods 0.000 description 10
- 238000005336 cracking Methods 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 5
- 239000003546 flue gas Substances 0.000 description 5
- 238000005979 thermal decomposition reaction Methods 0.000 description 5
- 239000002699 waste material Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000010030 laminating Methods 0.000 description 3
- 230000002265 prevention Effects 0.000 description 3
- 238000001321 HNCO Methods 0.000 description 2
- OWIKHYCFFJSOEH-UHFFFAOYSA-N Isocyanic acid Chemical compound N=C=O OWIKHYCFFJSOEH-UHFFFAOYSA-N 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 229940079593 drug Drugs 0.000 description 2
- 230000009897 systematic effect Effects 0.000 description 2
- ODINCKMPIJJUCX-UHFFFAOYSA-N Calcium oxide Chemical compound [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 description 1
- 229910021536 Zeolite Inorganic materials 0.000 description 1
- 239000000292 calcium oxide Substances 0.000 description 1
- 235000012255 calcium oxide Nutrition 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
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- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/0023—Covers
- A63B37/0024—Materials other than ionomers or polyurethane
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B37/00—Solid balls; Rigid hollow balls; Marbles
- A63B37/0003—Golf balls
- A63B37/007—Characteristics of the ball as a whole
- A63B37/0072—Characteristics of the ball as a whole with a specified number of layers
- A63B37/0074—Two piece balls, i.e. cover and core
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/0041—Optical brightening agents, organic pigments
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/0008—Organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
- C08K5/005—Stabilisers against oxidation, heat, light, ozone
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/04—Oxygen-containing compounds
- C08K5/09—Carboxylic acids; Metal salts thereof; Anhydrides thereof
- C08K5/098—Metal salts of carboxylic acids
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/584—Recycling of catalysts
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- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Chimneys And Flues (AREA)
Description
その結果、本発明によれば、より安定して高いNOx除去性能が得られると共に、安定した連続運転が可能となる。
図1は本発明の実施形態に係る尿素加水分解装置を示し、当該尿素加水分解装置は、例えば、廃棄物焼却炉やボイラ設備等に付設されており、尿素水Uを加熱雰囲気で加水分解触媒と接触させ、尿素の加水分解によりアンモニアAを生成せしめ、生成したアンモニアAを炉内11(又は煙道内)の燃焼排ガス中に吹き込んで燃焼排ガス中の窒素酸化物(NOx)を除去するものである。
その方策として、反応器3への加熱空気a′の量を増加させる方法が考えられるが、その際、加熱空気a′量の増加によりアンモニア噴霧ノズル13からの吐出ガス量(アンモニアAガス量)が変化し、炉内11(又は煙道内)でのアンモニアAの拡散状況が変化する恐れがある。
(NH2)2CO+H2O→2NH3+CO2 ・・・(1)式
(NH2)2CO→HNCO+NH3 ・・・(2)式
HNCO+H2O→NH3+CO2 ・・・(3)式
Claims (2)
- 内部に加水分解触媒層を形成した反応器と、反応器内へ尿素水を供給する尿素水供給ラインと、反応器内の加水分解触媒層の表面へ向って尿素水を噴霧する尿素水噴霧ノズルと、反応器内へ加熱空気を供給する加熱空気供給ラインと、反応器内で生成されたアンモニアを炉内又は煙道へ導くアンモニア供給ラインと、アンモニアを炉内又は煙道内へ吹き込むアンモニア噴霧ノズルとを備え、反応器内に供給した尿素水を加熱雰囲気で加水分解触媒と接触させ、尿素の加水分解によりアンモニアを生成せしめ、生成したアンモニアを炉内又は煙道内の燃焼排ガス中に吹き込んで燃焼排ガス中の窒素酸化物を除去するようにした尿素加水分解装置において、前記反応器内の加水分解触媒層の上に、充填物を積層して尿素水が常時噴霧される充填物層を形成したことを特徴とする尿素加水分解装置。
- 前記充填物は、粒状のセラミック、砂利又は金属のうちの何れか一種又は複数種から成ることを特徴とする請求項1に記載の尿素加水分解装置。
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JP6504613B2 true JP6504613B2 (ja) | 2019-04-24 |
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KR102182472B1 (ko) * | 2020-05-12 | 2020-11-24 | (주)성산기업 | 암모니아 생성 시스템 및 방법 |
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CN114505044B (zh) * | 2022-02-23 | 2023-10-20 | 西安热工研究院有限公司 | 一种填料式的尿素催化水解系统及方法 |
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JP3869314B2 (ja) * | 2002-03-29 | 2007-01-17 | バブコック日立株式会社 | 排ガス脱硝装置およびこれに用いる尿素気化器 |
JP6381124B2 (ja) * | 2014-11-19 | 2018-08-29 | 株式会社タクマ | 尿素加水分解装置 |
JP5885811B1 (ja) * | 2014-11-21 | 2016-03-16 | 株式会社タクマ | 尿素加水分解装置及びその制御方法 |
JP5859101B1 (ja) * | 2014-11-27 | 2016-02-10 | 株式会社タクマ | 尿素加水分解装置及び尿素加水分解装置の触媒再生方法 |
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WO2021230495A1 (ko) * | 2020-05-12 | 2021-11-18 | 주식회사 성산기업 | 암모니아 생성 시스템 및 방법 |
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