SU835477A1 - Adsorbent for cleaning gases from sulfur compounds - Google Patents
Adsorbent for cleaning gases from sulfur compounds Download PDFInfo
- Publication number
- SU835477A1 SU835477A1 SU792798454A SU2798454A SU835477A1 SU 835477 A1 SU835477 A1 SU 835477A1 SU 792798454 A SU792798454 A SU 792798454A SU 2798454 A SU2798454 A SU 2798454A SU 835477 A1 SU835477 A1 SU 835477A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- sulfur compounds
- absorbent
- gases
- dimethylacetamide
- adsorbent
- Prior art date
Links
- 239000007789 gas Substances 0.000 title claims description 12
- 150000003464 sulfur compounds Chemical class 0.000 title claims description 5
- 238000004140 cleaning Methods 0.000 title claims description 3
- 239000003463 adsorbent Substances 0.000 title 1
- 230000002745 absorbent Effects 0.000 claims description 13
- 239000002250 absorbent Substances 0.000 claims description 13
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 claims description 12
- 238000001179 sorption measurement Methods 0.000 claims description 6
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 4
- 150000001408 amides Chemical class 0.000 claims description 3
- 239000007864 aqueous solution Substances 0.000 claims description 2
- 150000001732 carboxylic acid derivatives Chemical class 0.000 claims description 2
- -1 diamine diamine Chemical class 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 11
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 7
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 6
- 238000000746 purification Methods 0.000 description 4
- RRQHLOZQFPWDCA-UHFFFAOYSA-N 1-n,1-n-dimethylpropane-1,2-diamine Chemical compound CC(N)CN(C)C RRQHLOZQFPWDCA-UHFFFAOYSA-N 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000010348 incorporation Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000003495 polar organic solvent Substances 0.000 description 1
- 238000003918 potentiometric titration Methods 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Description
1one
Изобретение относитс к области абсорбционной очистки газов от сернистых соединений и может быть использовано в газои нефтеперерабатывающей промышленности дл очистки газов от сероводорода и меркаптанов .The invention relates to the field of absorption purification of gases from sulfur compounds and can be used in the gas and oil refining industry to purify gases from hydrogen sulfide and mercaptans.
Известны абсорбенты дл очистки газов от сернистых соединений, состо щие из пол рного органического растворител и алифатического амина 1.Absorbents are known for cleaning gases from sulfur compounds consisting of a polar organic solvent and an aliphatic amine 1.
Недостатком этих абсорбентов вл етс недостаточно высока сорбционна способность по отношению к сероводороду и меркаптанам .The disadvantage of these absorbents is the insufficiently high sorption capacity with respect to hydrogen sulfide and mercaptans.
Известен также абсорбент, состо щий из N-диалкилзамещенного амида карбоновой кислоты и 10-30% вес диэтаноламина 2.An absorbent is also known, consisting of N-dialkyl-substituted amide of carboxylic acid and 10-30% by weight of diethanolamine 2.
Степень очистки газов от сероводорода указанным абсорбентом составл ет 97%, от меркаптанов - 90%, что свидетельствует о его недостаточно высокой сорбционной способности .The degree of gas purification from hydrogen sulfide by the said absorbent is 97%, from mercaptans - 90%, which indicates its insufficiently high sorption capacity.
Целью изобретени вл етс повышение сорбпионной способности абсорбента.The aim of the invention is to increase the sorption capacity of the absorbent.
Это достигаетс введением в абсорбент, основу которого составл ет водный раствор N-диалкилзамещенного амида карбоновой кислоты, а именно диметилформамида или диметилацетамида, N-диметилпропилендиамина при следующем соотнощении, %вес: This is achieved by incorporation into an absorbent based on an aqueous solution of N-dialkyl-substituted carboxylic amide, namely dimethylformamide or dimethylacetamide, N-dimethylpropylene diamine in the following ratio,% by weight:
N-диметилпропилендиамин15-45N-dimethylpropylene diamine 15-45
Вода0,1 - 15Water0,1 - 15
Диметилформамид илиDimethylformamide or
диметилацетамидОстальноеdimethylacetamide
Абсорбент готов т смешиванием компонентов .An absorbent is prepared by mixing the components.
Предлагаемый абсорбент может быть использован в обычных абсорбционно-регенерационных схемах очистки газов от сернистых соединений.The proposed absorbent can be used in conventional absorption and regeneration schemes for the purification of gases from sulfur compounds.
Пример.Example.
Абсорбент в количестве 80 мл помещают в насадочный абсорбер высотой 650 мм и диаметром 20 мм, в котором в качестве насадки примен ют кольца Рашига размером 5x5x1 мм. Затем при комнатной температуре (20°С) и атмосферном давлении пропускают через абсорбер в течение 30 мин с объемной скоростью 90 час- азот, содержащий 8,5% об сероводорода и 2,4% об. этилмеркаптана.An absorbent in the amount of 80 ml is placed in a packed absorber with a height of 650 mm and a diameter of 20 mm, in which Raschig rings of 5x5x1 mm are used as the nozzle. Then, at room temperature (20 ° C) and atmospheric pressure, it is passed through an absorber for 30 minutes at a volumetric rate of 90 hours; nitrogen containing 8.5% by volume of hydrogen sulfide and 2.4% by volume. ethyl mercaptan.
Содержание сероводорода и этилмеркаптана в газе определ ют методом потенциометрического титровани .The content of hydrogen sulfide and ethyl mercaptan in the gas is determined by potentiometric titration.
Отработанный абсорбент регенерируютснижением давлени , нагреванием и пр дувкой газом или паром.Exhaust absorbent is regenerated by lowering pressure, heating, and spinning gas or steam.
Результаты испытаний по вли нию различного количественного состава абсообен3The test results on the effect of different quantitative composition of absooben3
та на его сорбционную способность по отношению к сероводороду и этилмеркаптану приведены в таблице.that on its sorption capacity with respect to hydrogen sulfide and ethyl mercaptan are given in the table.
Здесь же дл сравнени приведены результаты испытаний в описанных выше услови х известного абсорбента.Here, for comparison, the test results are given under the conditions described above for a known absorbent.
Из приведенных в таблице данных видно, что абсорбент предлагаемого состава в сравнении с известным обладает высокой сорбционной способностью.From the data in the table shows that the absorbent of the proposed composition in comparison with the known has a high sorption capacity.
Степень очистки газа от сероводорода повышаетс с 97 до 99-100% отн и меркаптанов с 90 до 96% отн.The degree of gas purification from hydrogen sulfide increases from 97 to 99-100% rel and mercaptans from 90 to 96% rel.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792798454A SU835477A1 (en) | 1979-07-18 | 1979-07-18 | Adsorbent for cleaning gases from sulfur compounds |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU792798454A SU835477A1 (en) | 1979-07-18 | 1979-07-18 | Adsorbent for cleaning gases from sulfur compounds |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU835477A1 true SU835477A1 (en) | 1981-06-07 |
Family
ID=20841560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU792798454A SU835477A1 (en) | 1979-07-18 | 1979-07-18 | Adsorbent for cleaning gases from sulfur compounds |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU835477A1 (en) |
-
1979
- 1979-07-18 SU SU792798454A patent/SU835477A1/en active
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