Selective Absorption of Hydrogen Sulfide From Synthesis Gas

Wainwright, H.W.; Egleson, G.C.; Brock, C.M.; Fisher, James C.; Sands, Anne

doi:10.1021/ie50522a057

Cited by 4 publications

(4 citation statements)

References 5 publications

(6 reference statements)

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“…Bench scale and pilot plant experimentation on the removal Of organic sulfur compounds from gas has consisted of catalytic processes operating at elevated temperatures and pressures and adsorption on activated carbon both at atmospheric and elevated pressures. ing catalytic process is that using a copper-chromium-vanadium catalyst (18), which not only converts the organic sulfur compounds to hydrogen sulfide but also acts as an absorbent for the hydrogen sulfide formed. Periodically, the catalyst must be regenerated with air and then reduced.…”

Section: Occurrence Of Impurities In Synthesis Gasmentioning

confidence: 99%

Section: _1_1_l_mentioning

confidence: 99%

“…The first pilot plant runs were therefore made to study the selective properties of aqueous solutions of triethanolamine (19), tripotassium phosphate, and potassium IV-dimethyl glycine (alkazid DIK) (18). The purification pilot plant and the solution and gas cycle used for removing hydrogen sulfide and carbon dioxide have been described in detail in previous publications (18,19). It is sufficient to say that the studies on selective absorption were carried out in a Raschig ring-packed absorber at an operating pressure of 300 pounds per square inch gage and gas flows of about 3000 standard cubic feet per hour.…”

Section: _1_1_l_mentioning

confidence: 99%

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Purification of Synthesis Gas - Removal of Dust, Carbon Dioxide and Sulfur Compounds

Wainwright¹,

Kane²,

Wilson³

et al. 1956

Ind. Eng. Chem.

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Section: Occurrence Of Impurities In Synthesis Gasmentioning

confidence: 99%

Section: _1_1_l_mentioning

confidence: 99%

Section: _1_1_l_mentioning

confidence: 99%

See 1 more Smart Citation

Purification of Synthesis Gas - Removal of Dust, Carbon Dioxide and Sulfur Compounds

Wainwright¹,

Kane²,

Wilson³

et al. 1956

Ind. Eng. Chem.

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“…Part of the program of the Bureau of Mines deals with the removal of these sulfur compounds in order to render the gas suitable for the production of liquid fuels, natural gas substitutes, ammonia, and other chemicals (17,18). Pilot plant studies on removing impurities from raw synthesis gas revealed that adsorption on activated carbon is an efficient and economical way of removing all organic sulfur compounds from the gas (11).…”

Section: Inmentioning

confidence: 99%

Colorimetric Determination of Carbony Sulfide in Synthesis Gas

Pursglove¹,

Wainwright²

1954

Anal. Chem.

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Selective absorption of H₂S from larger quantities of CO₂ by absorption and reaction in fine sprays

1983

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Highly selective transfer of hydrogen sulfide (HzS) from much larger quantities of carbon dioxide (COZ) has been accomplished by absorption and reaction into fine sprays of buffered carbonate solution. Selectivity after the intensely agitated atomization zone is dramatically improved once the droplets have formed and stagnate internally. HZS transfer in this latter zone is virtually independent of the presence of COz, even at C02:HzS ratios of 1cO; COZ transfer, however, is adversely affected by the presence of H2S. The gas film resistance for mass transfer is effectively eliminated with the 50 p m mean droplet diameter. The data indicate approximately constant hydrodynamics throughout the formed droplet zone and allow.good theoretical prediction of enhancement factors for this complex system. Thus the design of more efficient equipment is possible if the gas-liquid contacting method is tailored to take advantage of differences in the transfer and reaction rate properties of gases to be separated. E. BENDALL, R. C. AIKEN, and F. MANDAS Department of Chemical EngineeringUniversity of Utah Salt Lake City, UT 84112The need for a selective separation of HzS from COz occurs as it is often too expensive and not necessary to remove large quantities of COz along with the pollutant HzS. Often no process is capable of removing the H2S to specifications without uneconomical removal of the majority of the COz, thus requiring a large purification plant and large capital investment. Situations in which HZS and larger quantities of COz appear include low to medium BTU gas wells or natural COz sources, and in fossil fuel plants operating under partial oxidative environments.There have been few experimental or theoretical studies of mass transfer into a dispersed medium with subsequent intraphase reaction. Applications include topics in liquid-liquid extraction and gas purification where single components are transferred or multiple competitively or synergistically interacting components are transferred. Description of the fluid dynamics for such systems is complicated by the existence of three different regimes always present: atomization, droplet flight, and coalescence. Many atomization techniques exist and none are welldescribed for sprays. Atomization greatly affects the droplet flight regime as it determines the droplet size distribution, dynamics and interaction. Continuous phase backmixing and internal dispersed-phase mixing further can complicate the theoretical description of the fluid dynamics.This article contains a summary of an experimental study on selective removal of HzS from much larger quantities of COz using a conventional liquid solution but sprayed into a chamber as a fine mist. The primary variable between runs was the amount of liquid reagent in solution. Gas and liquid samples were taken throughout the reactor. CONCLUSIONS AND SIGNIFICANCEThere is a significant increase in selective and extensive transport of H2S over COz if the scrubbing liquid is finely divided. This advantage is particularly great outs...

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Selective Absorption of Hydrogen Sulfide From Synthesis Gas

Abstract: Synthesis G a s Branch, Bureau of Mines, M o r g a n f o w n , W. V a .

Cited by 4 publications

References 5 publications

Purification of Synthesis Gas - Removal of Dust, Carbon Dioxide and Sulfur Compounds

Purification of Synthesis Gas - Removal of Dust, Carbon Dioxide and Sulfur Compounds

Colorimetric Determination of Carbony Sulfide in Synthesis Gas

Selective absorption of H₂S from larger quantities of CO₂ by absorption and reaction in fine sprays

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Selective Absorption of Hydrogen Sulfide From Synthesis Gas

Abstract: Synthesis G a s Branch, Bureau of Mines, M o r g a n f o w n , W. V a .

Cited by 4 publications

References 5 publications

Purification of Synthesis Gas - Removal of Dust, Carbon Dioxide and Sulfur Compounds

Purification of Synthesis Gas - Removal of Dust, Carbon Dioxide and Sulfur Compounds

Colorimetric Determination of Carbony Sulfide in Synthesis Gas

Selective absorption of H2S from larger quantities of CO2 by absorption and reaction in fine sprays

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Selective absorption of H₂S from larger quantities of CO₂ by absorption and reaction in fine sprays