SU1650579A1 - Method for purifying ammonia gas from oil and mechanical impurities - Google Patents
Method for purifying ammonia gas from oil and mechanical impurities Download PDFInfo
- Publication number
- SU1650579A1 SU1650579A1 SU884462696A SU4462696A SU1650579A1 SU 1650579 A1 SU1650579 A1 SU 1650579A1 SU 884462696 A SU884462696 A SU 884462696A SU 4462696 A SU4462696 A SU 4462696A SU 1650579 A1 SU1650579 A1 SU 1650579A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- oil
- ammonia gas
- increase
- purification
- filter
- Prior art date
Links
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 15
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000012535 impurity Substances 0.000 title claims abstract description 5
- 238000000746 purification Methods 0.000 claims abstract description 10
- 239000000835 fiber Substances 0.000 claims abstract description 8
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 3
- 229920002239 polyacrylonitrile Polymers 0.000 claims abstract description 3
- 238000001914 filtration Methods 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 abstract description 6
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 abstract description 5
- 229910017604 nitric acid Inorganic materials 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 229910052742 iron Inorganic materials 0.000 abstract description 3
- 239000003921 oil Substances 0.000 abstract 3
- 229910021529 ammonia Inorganic materials 0.000 description 5
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N iron oxide Inorganic materials [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 5
- 235000013980 iron oxide Nutrition 0.000 description 5
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 5
- 239000003365 glass fiber Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
- C01C1/00—Ammonia; Compounds thereof
- C01C1/02—Preparation, purification or separation of ammonia
- C01C1/024—Purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Filtering Materials (AREA)
Abstract
Изобретение относитс к очистке газообразного аммиака от масла и механических примесей и может быть использовано в производстве азотной кислоты Способ очистки газообразного аммиака от масла и механических примесей включает пропускание его через волокнистый фильтр, в котором с целью повышени степени очистки и увеличени производительности процесса за счет увеличени емкости фильтра, в качестве фильтра используют полиакрилнит- рильное гидролизованное волокно с содержанием карбоксильных групп в Na- форме 0.5--5.0 мг - зкв/г и фильтрование ведут со скоростью 3500-6000 м/ч Способ позвол ет повысить степень очистки от масла с 90 до 99,6% от железа с 80 до 85.2% при повышении производительности процесса 2 табл.The invention relates to the purification of ammonia gas from oil and mechanical impurities and can be used in the production of nitric acid. The method of purifying ammonia gas from oils and mechanical impurities involves passing it through a fiber filter, in order to increase the degree of purification and increase the productivity of the process by increasing the capacity filter, a polyacrylonitrile hydrolyzed fiber with a content of carboxyl groups in the form of 0.5–5.0 mg - Sq / g and filter The process allows to increase the degree of purification from oil from 90 to 99.6% of iron from 80 to 85.2% with an increase in the productivity of the process of 2 tab.
Description
Изобретение относитс к очистке газообразного аммиака от масла и механических примесей и может быть использовано в производстве азотной кислоты.The invention relates to the purification of ammonia gas from oil and mechanical impurities and can be used in the production of nitric acid.
Целью изобретени вл етс повышение степени очистки и увеличени производительности процесса за счет увеличени ёмкости фильтра.The aim of the invention is to increase the degree of purification and increase the productivity of the process by increasing the capacity of the filter.
П р и м е р 1 (прототип). В производстве азотной кислоты на агрегате УКЛ-7 аммиак пропускают через фильтр из однонаправленного стекловолокна со скоростью 3000 м/ч под давлением 1 мПа. Исходна концентраци масла в аммиаке составл ет 4 мг/м3, оксидов железа 0,1 мг/м3. Степень очистки от масла составл ет 90%, от оксидов железа 80%. Предельна емкость по маслу 0,004 кг на 1 кг волокна, по железу 0,003 кг на 1 кг волокна. Удельна нагрузка на фильтр 3000 м3/м2 ч.PRI me R 1 (prototype). In the production of nitric acid in the UKL-7 unit, ammonia is passed through a unidirectional glass fiber filter at a speed of 3000 m / h under a pressure of 1 MPa. The initial concentration of the oil in ammonia is 4 mg / m3, iron oxides 0.1 mg / m3. The degree of purification from oil is 90%, from iron oxides 80%. The limiting capacity according to oil is 0.004 kg per 1 kg of fiber, and according to iron 0.003 kg per 1 kg of fiber. The specific load on the filter is 3000 m3 / m2 h.
Пример 2. В производстве азотной кислоты на агрегате УКЛ-7 аммиак пропускают через фильтр из гидролизованного полиакрилнитрильного волокна с содержанием карбоксильых групп 0,5 мг/экв/г со скоростью 3500 м/ч под давлением 1 мПа Исходна концентраци масла 4 мг/м , оксидов железа 0 1 мг/м3. Высота сло 1 м, /поверхность 1 м2, масса фильтрационного материала 40 кг, Степень очистки от масла 95,4%, оксидов железа 83,1% Емкость волокна по маслу 0,007 кг/кг, по оксидам железа 0,006 кг/кг. Удельна нагрузка на фильтр 3500 м3/м2 ч.Example 2. In the production of nitric acid in the UKL-7 aggregate, ammonia is passed through a filter of hydrolyzed polyacrylonitrile fiber with a carboxyl group content of 0.5 mg / eq / g at a rate of 3500 m / h under a pressure of 1 mPa. iron oxides 0 1 mg / m3. The height of the layer is 1 m, / the surface is 1 m2, the mass of the filtration material is 40 kg, the degree of purification from oil is 95.4%, and iron oxides is 83.1%. The fiber oil capacity is 0.007 kg / kg, and according to iron oxides, 0.006 kg / kg. The specific load on the filter is 3500 m3 / m2 h.
В табл. 1 представлены примеры осуществлени способа при высоте фильтрующего сло 1 м; в табл. 2 представлены примеры осуществлени способа при различной высоте фильтрующего сло .In tab. 1 shows examples of carrying out the method with a filter bed of 1 m; in tab. 2 shows examples of carrying out the process at different heights of the filter bed.
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Таким образом, в сравнении с известным способом степень очистки аммиака от масла повышаетс от 90 до 99,6%, от железа от 80 до 85,2% при повышении производительности процесса. Кроме того, использование предлагаемого способа в сравнении с известными способами очистки позвол ет сократить расход аммиака на 1 кг азотной кислоты, что ведет к снижению себестоимости НМОз.Thus, in comparison with the known method, the degree of purification of ammonia from oil increases from 90 to 99.6%, from iron from 80 to 85.2% with an increase in the productivity of the process. In addition, the use of the proposed method in comparison with the known purification methods makes it possible to reduce the consumption of ammonia per 1 kg of nitric acid, which leads to a decrease in the cost of HM03.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884462696A SU1650579A1 (en) | 1988-07-18 | 1988-07-18 | Method for purifying ammonia gas from oil and mechanical impurities |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU884462696A SU1650579A1 (en) | 1988-07-18 | 1988-07-18 | Method for purifying ammonia gas from oil and mechanical impurities |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU1650579A1 true SU1650579A1 (en) | 1991-05-23 |
Family
ID=21390683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU884462696A SU1650579A1 (en) | 1988-07-18 | 1988-07-18 | Method for purifying ammonia gas from oil and mechanical impurities |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU1650579A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996039358A1 (en) * | 1995-06-05 | 1996-12-12 | Startec Ventures, Inc. | Point-of-use ammonia purification for electronic component manufacture |
| EP0831978A4 (en) * | 1995-06-05 | 1998-09-09 | Startec Ventures Inc | On-site ammonia purification for semiconductor manufacture |
| EP1160199A3 (en) * | 2000-05-23 | 2003-06-11 | Rohm And Haas Company | Method and apparatus for preventing iron contamination in an ammonia recovery process |
| RU2327640C1 (en) * | 2007-02-07 | 2008-06-27 | Общество с ограниченной ответственностью "Фирма "ХОРСТ" | Method of deep purification of ammonia |
-
1988
- 1988-07-18 SU SU884462696A patent/SU1650579A1/en active
Non-Patent Citations (1)
| Title |
|---|
| Вольф Л.А. Волокна с о.собыми свойствами. - М.: Хими , 1980, с. 79. Справочник азотчика. - М.: Хими , 1987, с. 50. * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996039358A1 (en) * | 1995-06-05 | 1996-12-12 | Startec Ventures, Inc. | Point-of-use ammonia purification for electronic component manufacture |
| EP0831978A4 (en) * | 1995-06-05 | 1998-09-09 | Startec Ventures Inc | On-site ammonia purification for semiconductor manufacture |
| EP1160199A3 (en) * | 2000-05-23 | 2003-06-11 | Rohm And Haas Company | Method and apparatus for preventing iron contamination in an ammonia recovery process |
| RU2327640C1 (en) * | 2007-02-07 | 2008-06-27 | Общество с ограниченной ответственностью "Фирма "ХОРСТ" | Method of deep purification of ammonia |
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