SU176031A1 - METHOD FOR CLEANING GAS FROM HYDROGEN - Google Patents
METHOD FOR CLEANING GAS FROM HYDROGENInfo
- Publication number
- SU176031A1 SU176031A1 SU835444A SU835444A SU176031A1 SU 176031 A1 SU176031 A1 SU 176031A1 SU 835444 A SU835444 A SU 835444A SU 835444 A SU835444 A SU 835444A SU 176031 A1 SU176031 A1 SU 176031A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- bauxite
- temperature
- hydrogen
- cleaning gas
- carried out
- Prior art date
Links
- 239000007789 gas Substances 0.000 title description 7
- 238000004140 cleaning Methods 0.000 title description 5
- 239000001257 hydrogen Substances 0.000 title 1
- 150000002431 hydrogen Chemical class 0.000 title 1
- 229910052739 hydrogen Inorganic materials 0.000 title 1
- 229910001570 bauxite Inorganic materials 0.000 description 12
- RWSOTUBLDIXVET-UHFFFAOYSA-N dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 5
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 5
- 230000008929 regeneration Effects 0.000 description 5
- 238000011069 regeneration method Methods 0.000 description 5
- 238000000746 purification Methods 0.000 description 4
- 239000003463 adsorbent Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- RAHZWNYVWXNFOC-UHFFFAOYSA-N sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminum Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000003009 desulfurizing Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910000460 iron oxide Inorganic materials 0.000 description 1
- 235000013980 iron oxide Nutrition 0.000 description 1
- VBMVTYDPPZVILR-UHFFFAOYSA-N iron(2+);oxygen(2-) Chemical class [O-2].[Fe+2] VBMVTYDPPZVILR-UHFFFAOYSA-N 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
Description
Известны способы очистки газов от сероводорода путем адсорбции на адсорбентах, содержащих окислы железа и алюмини , например болотной рудой при температуре 350- 450° С. При очистке газов с более высокой тем пературой, например генераторных, нецелесообразно понижать температуру до сероочистки , чтобы после очистки ее оп ть повышать.There are known methods for purifying gases from hydrogen sulfide by adsorption on adsorbents containing oxides of iron and aluminum, for example, with bog ore at a temperature of 350-450 ° C. When cleaning gases with a higher temperature, for example, generator, it is not advisable to lower the temperature before desulfurization. increase again.
В предлагаемом способе адсорбцию сероводорода из газов осуществл ют на боксите при температуре 350-1000° С. Регенерацию боксита продувкой воздухом осуществл ют при температуре 350-900° С.In the proposed method, the adsorption of hydrogen sulfide from gases is carried out on bauxite at a temperature of 350-1000 ° C. The regeneration of bauxite by blowing air is carried out at a temperature of 350-900 ° C.
Пример. Очистку провод т в неподвижном слое боксита при -времени контакта 0,1-0,2 сек. Диаметр зерен боксита 2-2,5 мм.Example. The cleaning is carried out in a fixed layer of bauxite at a contact time of 0.1-0.2 sec. The diameter of the bauxite grains is 2-2.5 mm.
Очистке подвергаетс газ следующего состава (в об. %): На 11, СО 23, Na 64, HaS 1,4.The following gas is subjected to purification (in vol.%): 11, CO 23, Na 64, HaS 1.4.
Степень очистки газа от сероводорода при температуре 350-500° С составл ет 99%; при 700° С 97-98о/о; при 900° С 95о/о. Максимальна степень насыщени боксита серой составл ет 10% от веса боксита (дл боксита с 200/0 РзОз).The degree of gas purification from hydrogen sulfide at a temperature of 350-500 ° C is 99%; at 700 ° C 97-98o / o; at 900 ° C 95o / o. The maximum degree of saturation of bauxite with sulfur is 10% of the weight of bauxite (for bauxite with 200/0 PcO3).
Регенерацию отработанного боксита проводили в токе воздуха при 350-900° С с получением сернистого ангидрида.Regeneration of spent bauxite was carried out in a stream of air at 350–900 ° C to obtain sulfur dioxide.
Однако применение регенерации при 700° С и выше с последующим использованием массы дл очистки при 350-500° С нецелесообразно из-за уменьшени активности в результате спекани . Спекшийс боксит вновь восстанавливает свою активность, если очистку проводнть при 700-1000° С. Многократное повторение циклов: поглощение сероводорода - регенераци при одной температуре поглощени и регенерации не уменьшает активности боксита , его сероемкости и не приводит к распылению и дроблению боксита.However, the use of regeneration at 700 ° C and above, followed by the use of a mass for cleaning at 350-500 ° C, is impractical because of a decrease in activity due to sintering. Sinter bauxite again regains its activity if cleaning is carried out at 700–1000 ° C. Repeated cycles: absorption of hydrogen sulfide — regeneration at a single absorption and regeneration temperature does not reduce bauxite activity, its sulfur content, and does not result in sputtering and crushing of bauxite.
Предмет изобретени Subject invention
Способ очистки газов от сероводорода путем адсорбции при повышенной температуре на адсорбентах, содержащих окислы железа, отличающийс тем, что, с целью повышени стелени очистки, в качестве адсорбента используют боксит и очистку ведут при температуре 350-1000° С.The method of purification of gases from hydrogen sulfide by adsorption at elevated temperature on adsorbents containing iron oxides, characterized in that, in order to increase the clearing of the stele, bauxite is used as the adsorbent and the purification is carried out at a temperature of 350-1000 ° C.
Publications (1)
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SU176031A1 true SU176031A1 (en) |
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