Enhancement of Methane Concentration by Removing Contaminants from Biogas Mixtures Using Combined Method of Absorption and Adsorption

Joint Authors

Al Mamun, Muhammad Rashed
Torii, Shuichi

Source

International Journal of Chemical Engineering

Issue

Vol. 2017, Issue 2017 (31 Dec. 2017), pp.1-9, 9 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2017-03-06

Country of Publication

Egypt

No. of Pages

9

Abstract EN

We report a laboratory scale combined absorption and adsorption chemical process to remove contaminants from anaerobically produced biogas using cafeteria (food), vegetable, fruit, and cattle manure wastes.

Iron oxide (Fe2O3), zero valent iron (Feo), and iron chloride (FeCl2) react with hydrogen sulfide (H2S) to deposit colloidal sulfur.

Silica gel, sodium sulfate (Na2SO4), and calcium oxide (CaO) reduce the water vapour (H2O) and carbon dioxide (CO2).

It is possible to upgrade methane (CH4) above 95% in biogas using chemical or physical absorption or adsorption process.

The removal efficiency of CO2, H2S, and H2O depends on the mass of removing agent and system pH.

The results showed that Ca(OH)2 solutions are capable of reducing CO2 below 6%.

The H2S concentration was reduced to 89%, 90%, 86%, 85%, and 96% for treating with 10 g of FeCl2, Feo (with pH), Fe2O3, Feo, and activated carbon, respectively.

The H2O concentration was reduced to 0.2%, 0.7%, 0.2%, 0.2%, and 0.3% for treating raw biogas with 10 g of silica gel and Na2SO4 for runs R1, R2, R3, R4, and R5, respectively.

Thus, given the successful contaminant elimination, the combined absorption and adsorption process is a feasible system for biogas purification.

American Psychological Association (APA)

Al Mamun, Muhammad Rashed& Torii, Shuichi. 2017. Enhancement of Methane Concentration by Removing Contaminants from Biogas Mixtures Using Combined Method of Absorption and Adsorption. International Journal of Chemical Engineering،Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1165285

Modern Language Association (MLA)

Al Mamun, Muhammad Rashed& Torii, Shuichi. Enhancement of Methane Concentration by Removing Contaminants from Biogas Mixtures Using Combined Method of Absorption and Adsorption. International Journal of Chemical Engineering No. 2017 (2017), pp.1-9.
https://search.emarefa.net/detail/BIM-1165285

American Medical Association (AMA)

Al Mamun, Muhammad Rashed& Torii, Shuichi. Enhancement of Methane Concentration by Removing Contaminants from Biogas Mixtures Using Combined Method of Absorption and Adsorption. International Journal of Chemical Engineering. 2017. Vol. 2017, no. 2017, pp.1-9.
https://search.emarefa.net/detail/BIM-1165285

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1165285