Bubble Tray Hydraulics

James A. Davies

doi:10.1021/ie50450a013

Removal of hydrogen sulfide from an anaerobic biogas using a bio-scrubber

Water Science & Technology ◽

10.2166/wst.1997.0610 ◽

1997 ◽

Vol 36 (6-7) ◽

pp. 349-356 ◽

Cited By ~ 23

Author(s):

Sosuke Nishimura ◽

Motoyuki Yoda

Keyword(s):

Hydrogen Sulfide ◽

Simulation Model ◽

Biological Treatment ◽

Gas Flow ◽

Treatment Process ◽

Aeration Tank ◽

Wastewater Treatment Process ◽

Bubble Tray ◽

Sulfur Oxidizing ◽

Biological Treatment Process

A novel biological treatment process for removing hydrogen sulfide from anaerobic biogas using a bio-scrubber has been developed. The treatment process is composed of a gas/liquid contact tower and an aeration tank. The biogas from an anaerobic wastewater treatment process is introduced into a multiple-bubble-tray contact tower (bio-scrubber) and scrubbed with activated sludge liquor from an aeration tank. The sludge liquor containing sulfides is then returned to the aeration tank, where the sulfide is oxidized to sulfate by sulfur-oxidizing bacteria such as Thiobacillus. The contact tower is designed to be air tight in order to prevent air from mixing into the biogas used as a fuel. A simulation model was developed to calculate effluent gas concentrations from the contact tower, incorporating input parameters such as influent hydrogen sulfide concentrations, gas flow rates, and gas/liquid ratios. Using the simulation model, design criteria were calculated and a full-scale plant for treating biogas from a UASB process for potato processing wastewater was constructed. The data shows that the hydrogen sulfide in the biogas was effectively reduced from 2,000 ppm to less than 20 ppm.

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Use of a combined model in the investigation of the hydrodynamic structure of the flow of a liquid on a bubble tray

Chemistry and Technology of Fuels and Oils ◽

10.1007/bf00727799 ◽

1969 ◽

Vol 5 (8) ◽

pp. 575-578

Author(s):

G. I. Zorina ◽

V. G. Chekmenev ◽

S. A. Kruglov ◽

A. I. Skoblo

Keyword(s):

Combined Model ◽

Bubble Tray ◽

Hydrodynamic Structure

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Dispersion mechanism of fluids in a bubble-tray extraction tower, and a method for intensifying it

Atomic Energy ◽

10.1007/bf01480345 ◽

1961 ◽

Vol 7 (2) ◽

pp. 663-664

Author(s):

N. P. Galkin ◽

V. B. Tikhomirov ◽

N. E. Goryainov ◽

V. D. Fedorov

Keyword(s):

Dispersion Mechanism ◽

Extraction Tower ◽

Bubble Tray

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IMPROVEMENT OF TECHNOLOGICAL PROCESS IN CATALYTIC REFORMING UNIT FOR OPTIMIZING TECHNOLOGICAL PARAMETERS

VESTNIK OF ASTRAKHAN STATE TECHNICAL UNIVERSITY ◽

10.24143/1812-9498-2018-2-49-55 ◽

2018 ◽

pp. 49-55

Author(s):

Anton Sergeevich Subbotkin ◽

Natalia Nickolaevna Artemieva

Keyword(s):

Gas Flow ◽

Porous Matrix ◽

Aluminum Silicate ◽

Drying Method ◽

Technological Parameters ◽

Catalytic Reforming ◽

Distillation Columns ◽

Use Of Resources ◽

Sorbent Regeneration ◽

Bubble Tray

Increasing the efficiency of the plant for producing aromatic hydrocarbons by catalytic reforming requires the rational use of resources and equipment. Increasing the efficiency of the devices contributes to optimization of the plant as a whole. It is proposed to modernize the construction of the trays of distillation columns and replace the sorbent of the adsorption columns. The diameter of contact of a bubble tray has been calculated. It was supposed to increase efficiency of drying circulation gases both during start and operation of reforming catalyst and during catalyst regeneration. There are enumerated the parameters of the proposed drying method, such as using aluminum oxide, aluminum silicate, or carbonic substance as porous matrix, as well as sorbent regeneration in a gas flow at a certain temperature.

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