SU1369777A1 - Method of cleaning ventilation waste from impurities of organic substances - Google Patents
Method of cleaning ventilation waste from impurities of organic substances Download PDFInfo
- Publication number
- SU1369777A1 SU1369777A1 SU864053925A SU4053925A SU1369777A1 SU 1369777 A1 SU1369777 A1 SU 1369777A1 SU 864053925 A SU864053925 A SU 864053925A SU 4053925 A SU4053925 A SU 4053925A SU 1369777 A1 SU1369777 A1 SU 1369777A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- impurities
- catalyst
- epichlorohydrin
- purification
- iron
- Prior art date
Links
- 239000012535 impurity Substances 0.000 title claims abstract description 10
- 238000009423 ventilation Methods 0.000 title claims abstract description 8
- 238000000034 method Methods 0.000 title claims abstract description 5
- 239000000126 substance Substances 0.000 title claims description 5
- 238000004140 cleaning Methods 0.000 title abstract description 4
- 239000002699 waste material Substances 0.000 title 1
- 239000003054 catalyst Substances 0.000 claims abstract description 18
- 238000000746 purification Methods 0.000 claims abstract description 13
- BRLQWZUYTZBJKN-UHFFFAOYSA-N Epichlorohydrin Chemical compound ClCC1CO1 BRLQWZUYTZBJKN-UHFFFAOYSA-N 0.000 claims abstract description 12
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 9
- 235000013980 iron oxide Nutrition 0.000 claims description 9
- JEIPFZHSYJVQDO-UHFFFAOYSA-N ferric oxide Chemical compound O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 7
- 229960005191 ferric oxide Drugs 0.000 claims description 7
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims description 4
- 229910000423 chromium oxide Inorganic materials 0.000 claims description 4
- 239000004615 ingredient Substances 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims 2
- 150000008064 anhydrides Chemical class 0.000 claims 2
- 230000003647 oxidation Effects 0.000 claims 2
- 238000007254 oxidation reaction Methods 0.000 claims 2
- 229910052717 sulfur Inorganic materials 0.000 claims 2
- 239000011593 sulfur Substances 0.000 claims 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 abstract description 12
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 abstract 3
- 230000010152 pollination Effects 0.000 abstract 1
- 239000000203 mixture Substances 0.000 description 5
- 230000003197 catalytic effect Effects 0.000 description 4
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 239000011651 chromium Substances 0.000 description 2
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 2
- 150000004045 organic chlorine compounds Chemical class 0.000 description 2
- XLVHDENXVPXSKC-UHFFFAOYSA-L dihydroxy(dioxo)chromium iron Chemical compound [Fe].[Cr](=O)(=O)(O)O XLVHDENXVPXSKC-UHFFFAOYSA-L 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- HEQBUZNAOJCRSL-UHFFFAOYSA-N iron(ii) chromite Chemical compound [O-2].[O-2].[O-2].[Cr+3].[Fe+3] HEQBUZNAOJCRSL-UHFFFAOYSA-N 0.000 description 1
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- Catalysts (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Изобретение относитс к технологии очистки вентил ционных выбросов от фенола, толуола, формальдегида и эпихлоргидрина, позвол ющих повысить степень очистки от эпихлоргидрина и увеличить срок службы катализатора. Очистку ведут опылением на катализаторе СТК 1-7, содержащем ,, , и примеси SOj в количествах 88,0- 92,6; 7,0-11,7 и 0,2-0,4 мас.% соответственно . Температура процесса 250-400°С, объемна скорость 10000- 60000 ч. Исходна концентраци эпихлоргидрина 2-3 г/м . Достигнута практически полна очистка от всех примесей, в том числе от эпихлоргидрина , срок службы катализатора более 7200 ч без снижени активности. 1 табл. i СЛThis invention relates to a technology for purifying ventilation emissions from phenol, toluene, formaldehyde and epichlorohydrin, which allows for an increase in the degree of purification from epichlorohydrin and an increase in the service life of the catalyst. Cleaning lead pollination on the catalyst STK 1-7, containing ,, and impurities SOj in quantities of 88.0- 92.6; 7.0-11.7 and 0.2-0.4 wt.%, Respectively. The process temperature is 250-400 ° C, the volumetric rate is 10,000 to 60,000 hours. The initial concentration of epichlorohydrin is 2-3 g / m. Achieved almost complete purification from all impurities, including epichlorohydrin, the service life of the catalyst more than 7200 hours without a decrease in activity. 1 tab. i SL
Description
со О)with O)
со with
Изобретение относитс к каталитической очистке вентил ционных выбросов от вредных органических и хлор- органических соединений и может при- мен тьс в химической и других отрасл х промьшленности.The invention relates to the catalytic purification of ventilation emissions from harmful organic and organochlorine compounds and can be used in chemical and other industrial sectors.
Цель изобретени - повышение степени очистку от эпихлоргидрина и срока службы катализатора.The purpose of the invention is to increase the degree of purification of epichlorohydrin and the lifetime of the catalyst.
Очистку ведут в присутствии желе- зохромокисного катализатора СТК-1-7, состо щего из окислов железа (не менее 88%) и хрома (не менее,7%) и примесей SO, не более 0,4%. При этом очистку провод т при 250-400 С, преимущественно при 300-400 С, и объемной скорости 10000-60000 ч . Концентраци эпихлоргидрина может достигать 2000-3000 мг/м .Purification is carried out in the presence of a CTK-1-7 iron-oxide catalyst, consisting of iron oxides (at least 88%) and chromium (at least 7%) and SO impurities, at most 0.4%. In this case, the cleaning is carried out at 250-400 ° C, mainly at 300-400 ° C, and a space velocity of 10,000-60000 h. The concentration of epichlorohydrin can reach 2000-3000 mg / m.
Пример 1. В контактный аппарат производительностью по газу 50 л/ч загружали 5 см железохром- окисного катализатора СТК-1-7, содержащего н/м 88% окиси железа и н/м 7% окиси хрома. Газовоздушную смесь (вентил ционные выбросы), подлежащую очистке, содержащую 500-1500 мг/м толуола, 100-3000 мг/м эпихлоргидрина , 100-200 мг/м фенола, 10- 50 мг/м формальдегида, предварительно нагревали в печи-подогревателе до 300°С и пропускали через контактный аппарат с объемной скоростью 10000ч при 300°С. В результате каталитического дожигани получили 100%-ную степень очистки газов по всем перечисленным компонентам.Example 1. In a contact apparatus with a gas flow rate of 50 l / h, 5 cm of an iron-chromic oxide catalyst STK-1-7 was loaded, containing n / m 88% iron oxide and n / m 7% chromium oxide. The gas-air mixture (ventilation emissions) to be purified, containing 500–1500 mg / m toluene, 100–3000 mg / m epichlorohydrin, 100–200 mg / m phenol, 10–50 mg / m formaldehyde, was preheated in a preheater up to 300 ° C and passed through the contact apparatus with a volumetric rate of 10000 h at 300 ° C. As a result of catalytic afterburning, a 100% degree of gas purification was obtained for all the listed components.
f 0f 0
5 о 5 o
5five
талитического дожигани получили 98-100%-ную степень очистки газов по всем компонентам.The catalytic afterburning received a 98-100% degree of gas purification for all components.
Пример 3. На лабораторной установке каталитического дожигани в реакторе проточного типа производительностью по газу 50 л/ч на стационарном слое железохромокисных катализаторов с различным содержанием окислов железа, хрома и примесей, проводили испытани способа очистки вентил ционных выбросов от толуола, формальдегида , фенола и эпихлоргидрина.Example 3. A laboratory installation of catalytic afterburning in a flow-type reactor with a gas flow rate of 50 l / h on a stationary layer of iron-chromate catalysts with different contents of iron oxides, chromium and impurities tested the method of cleaning ventilation emissions from toluene, formaldehyde, phenol and epichlorohydrin.
Работу проводили на искусственных газовоздушных смес х, концентраци вредных веществ составл ла 10 - 3000 мг/м. Температуру на катализаторе варьировали от 250 до 450 С, объемную скорость от 10000 до 60000 .The work was carried out on artificial gas-air mixtures; the concentration of harmful substances was 10–3000 mg / m. The temperature on the catalyst was varied from 250 to 450 ° C; space velocity was from 10,000 to 60,000.
Результаты испытаний активности железохромокисного катализатора представлены в таблице.The test results of the activity of the iron-oxide catalyst are presented in the table.
Как видно из таблицы, при эксплуатации железохромокисных катализаторов различного состава только катализаторы с содержанием 88-92,6%, , 7-11,7% и примеси SO, 0,2-0,4% обеспечивают степень очистки от органических веществ и эпихлоргидрина равную 100%, срок службы катализатора более 7200 ч без снижени активности .As can be seen from the table, during the operation of iron-oxide catalysts of different composition, only catalysts with a content of 88-92.6%, 7-11.7% and impurities SO, 0.2-0.4% provide a degree of purification from organic substances and epichlorohydrin equal to 100%, the service life of the catalyst over 7200 hours without a decrease in activity.
Катализаторы с другим составом ингредиентов в этих же услови х обладают более низкой эффективностью очистки от эпихлоргидрина (60-75%)Catalysts with a different composition of ingredients in the same conditions have a lower efficiency of purification from epichlorohydrin (60-75%)
Пример 2. В рат производительностью по газу 50 л/ч загружали 0,83 см железо- хромдкисного катализатора СТК-1-7, содержащего н/м 88% железа и н/м 7% окиси хрома. Газовоздушную смесь (вентил ционные выбросы, подлежащую очистке), содержащую 500-1500 мг/м толуола, 100-3000 мг/м эпихлоргидJJинa , 100-200 мг/м фенола, 10 - 50 мг/м формальдегида, нагревали в печи-подогревателе доExample 2. In a gas flow rate of 50 l / h, 0.83 cm of a CTK-1-7 iron-chromic acid catalyst containing n / m 88% iron and n / m 7% chromium oxide was loaded. The gas-air mixture (ventilation emissions to be cleaned) containing 500–1500 mg / m toluene, 100–3000 mg / m epichlorohydrogen, 100–200 mg / m phenol, 10–50 mg / m formaldehyde, was heated in a preheater to
400°С и пропускали через контактный аппарат с объемной скоростью 600000 ч при 400°С. В результате ка400 ° C and passed through the contact apparatus with a volumetric rate of 600,000 hours at 400 ° C. As a result,
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU864053925A SU1369777A1 (en) | 1986-04-09 | 1986-04-09 | Method of cleaning ventilation waste from impurities of organic substances |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU864053925A SU1369777A1 (en) | 1986-04-09 | 1986-04-09 | Method of cleaning ventilation waste from impurities of organic substances |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1369777A1 true SU1369777A1 (en) | 1988-01-30 |
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ID=21232696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU864053925A SU1369777A1 (en) | 1986-04-09 | 1986-04-09 | Method of cleaning ventilation waste from impurities of organic substances |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1369777A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4935212A (en) * | 1988-12-13 | 1990-06-19 | Man Technologie Gmbh | Method of decomposing organic halogen compounds in gaseous phase |
-
1986
- 1986-04-09 SU SU864053925A patent/SU1369777A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Авторское свидетельство СССР 476017, кл. В 01 J 8/02, 1975. * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4935212A (en) * | 1988-12-13 | 1990-06-19 | Man Technologie Gmbh | Method of decomposing organic halogen compounds in gaseous phase |
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