SU309719A1 - METHOD FOR CLEANING EXHAUST GASES - Google Patents
METHOD FOR CLEANING EXHAUST GASESInfo
- Publication number
- SU309719A1 SU309719A1 SU1394484A SU1394484A SU309719A1 SU 309719 A1 SU309719 A1 SU 309719A1 SU 1394484 A SU1394484 A SU 1394484A SU 1394484 A SU1394484 A SU 1394484A SU 309719 A1 SU309719 A1 SU 309719A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- exhaust gases
- catalyst
- cleaning exhaust
- water vapor
- gas
- Prior art date
Links
- 239000007789 gas Substances 0.000 title description 14
- 238000004140 cleaning Methods 0.000 title description 2
- 239000003054 catalyst Substances 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 229910000323 aluminium silicate Inorganic materials 0.000 description 5
- KZHJGOXRZJKJNY-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Si]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O.O=[Al]O[Al]=O KZHJGOXRZJKJNY-UHFFFAOYSA-N 0.000 description 5
- FUJCRWPEOMXPAD-UHFFFAOYSA-N Lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 description 4
- VYZAMTAEIAYCRO-UHFFFAOYSA-N chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 3
- 229910052804 chromium Inorganic materials 0.000 description 3
- 239000011651 chromium Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- QPLDLSVMHZLSFG-UHFFFAOYSA-N copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 description 3
- 238000000746 purification Methods 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 230000003197 catalytic Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- RWSOTUBLDIXVET-UHFFFAOYSA-N dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 2
- 238000004868 gas analysis Methods 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- 229910052720 vanadium Inorganic materials 0.000 description 2
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium(0) Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 2
- 239000005751 Copper oxide Substances 0.000 description 1
- 229910004682 ON-OFF Inorganic materials 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N al2o3 Chemical compound [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 229910000431 copper oxide Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
Description
Изобретение относитс к способам каталитического окислени выхлопных газов двигателей внутреннего сгорани .This invention relates to methods for the catalytic oxidation of exhaust gases of internal combustion engines.
Известен способ очистки выхлопных газов двигателей внутреннего сгорани путем пропускани их при температуре до 500°С с объемной скоростью 9500-52000 час над катализатором , представл ющим собой окись меди и хрома, нанесенную на керамику и промотируемую окисью алюмини .The known method of purification of exhaust gases of internal combustion engines is by passing them at a temperature of up to 500 ° C with a bulk velocity of 9500-52000 hours over the catalyst, which is copper oxide and chromium deposited on ceramics and promoted by aluminum oxide.
Недостатком известного способа вл етс ухудшение каталитических свойств катализатора ввиду наличи в выхлопных газах вод ных паров.The disadvantage of this method is the deterioration of the catalytic properties of the catalyst due to the presence of water vapor in the exhaust gases.
По предлагаемому способу очистку выхлопных газов производ т путем их пропускани над алюмосиликатным катализатором, промотированным окислами меди, хрома, ванади , лити или их смесью. Это дает возможность очищать выхлопные газы, содержащие вод ной пар (в то врем как по известному способу катализатор быстро садитс в присутствии паров воды).In the proposed method, the purification of exhaust gases is carried out by passing them over an aluminosilicate catalyst promoted with oxides of copper, chromium, vanadium, lithium, or their mixtures. This makes it possible to purify exhaust gases containing water vapor (while by a known method the catalyst quickly settles in the presence of water vapor).
Очистка выхлопных газов, содержащих (в %): СО от О до 4; Н2 от О до 1,0; углеводороды от 0,1 до 0,2; Ог от 1,0 до 4; СОг от 5 до 10; пары воды до 10; сероводород до 5, проводитс в проточной установке. Газ подаетс с объемной скоростью 15000-50000 Purification of exhaust gases containing (in%): CO from O to 4; H2 from O to 1.0; hydrocarbons from 0.1 to 0.2; Og from 1.0 to 4; CO2 from 5 to 10; water vapor up to 10; hydrogen sulfide up to 5 is carried out in a flow installation. Gas is supplied at a volumetric rate of 15000-50000
емпература в зоне реакции 450-700°С. Анализ газа проводитс хроматографическим меодом .The temperature in the reaction zone is 450-700 ° C. Gas analysis is carried out by chromatographic method.
Пример 1. Газ с объемной скоростьюExample 1. Gas with a volumetric rate
15000 час- подаетс в реактор, температура в котором 550°С. Реактор загружают алюмосиликатным катализатором, промотированным 1,2 вес. % . Испытани ведутс в течение 1000 час.15,000 hours is fed to a reactor in which the temperature is 550 ° C. The reactor load aluminosilicate catalyst, promoted 1.2 weight. % Tests are conducted for 1000 hours.
Анализ газа показывает, что идет 100%-ное окисление окиси углерода. Исходный газ содержит 1 % вод ных паров, но после опыта удельна поверхность катализатора измен етс незначительно.Gas analysis shows that carbon monoxide is 100% oxidized. The feed gas contains 1% water vapor, but after the test, the specific surface of the catalyst varies only slightly.
Пример 2. Газ с объемной скоростью 50000 час- подаетс в реактор, в котором поддерживаетс температура 650°С. В качестве катализатора при этих услови х испытывают алюмосиликатный катализатор, промотированный 0,9% СиО, или 2,8% Li2O, или 7,2% СгоО, или 0,5% VaOs.Example 2. Gas with a volumetric rate of 50000 hours is fed to a reactor in which the temperature is maintained at 650 ° C. As a catalyst, under these conditions, an aluminosilicate catalyst promoted with 0.9% CuO, or 2.8% Li2O, or 7.2% Co2, or 0.5% VaOs is tested.
Глубина превращени окиси углерода (за исключением опыта Li2O) составл ет 100%. Углеводороды благодар крекирующей способности алюмосиликата хорощо разлагаютс . Удельна поверхность катализатора после 500 час работы уменьшаетс на 4,5 при содержании сероводорода в газе до 5%3 Предмет и з о б р-ет е н и Способ очистки выхлопных газов двигателей внутреннего сгорани путем пропускани их при повышенных температурах над ката- 5 лизатором, отличающийс тем, что, с целью 4 обеспечени онисткн газов, содержащих вод ной пар, а- Ksi:4&CTBe- катализатора примен ют алюмосиликатный катализатор, промотированный окислами металлов, например хрома, меди, ванади , лити , The depth of carbon monoxide conversion (with the exception of the Li2O experiment) is 100%. Hydrocarbons, due to the cracking ability of the aluminosilicate, are well decomposed. After 500 hours of operation, the specific surface of the catalyst is reduced by 4.5 when the hydrogen sulfide content in the gas is up to 5%. 3 Subject and method of cleaning exhaust gases of internal combustion engines by passing them at elevated temperatures above the catalyst. characterized in that in order to provide on-off gases containing water vapor, a-Ksi: 4 & CTBe-catalyst, an aluminosilicate catalyst promoted with oxides of metals, for example chromium, copper, vanadium, lithium,
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU309719A1 true SU309719A1 (en) |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5141906A (en) * | 1990-06-29 | 1992-08-25 | Toyota Jidosha Kabushiki Kaisha | Catalyst for purifying exhaust gas |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5141906A (en) * | 1990-06-29 | 1992-08-25 | Toyota Jidosha Kabushiki Kaisha | Catalyst for purifying exhaust gas |
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