Bio methane from biogas, renewable energy resource for Pakistan

Authors

  • ASIF ALI USPCAS-E , UET, Peshawar

DOI:

https://doi.org/10.30537/sjet.v2i2.467

Keywords:

Biogas, Hydrogen sulfide, Chemical absorption, Potassium hydroxide, Bio methane, Renewable energy.

Abstract

The major barriers in development of Pakistan’s economy are dependency on inefficient and unaffordable energy technologies, thus is an energy-short country.  The future energy demands of the country can be fulfilled by opting renewable energy technologies. The number of biogas energy generation Systems is increasing steadily, as they are generated with low-cost. Pakistan’s 70% population residing in rural areas, so biogas energy can be a good substitute. A national policy regarding the development of biogas energy technology is needed to enhance the biogas potential. This study focuses on control of agriculture waste by chemical absorption process, in which the biomass is converted into fuel. In this way not only biomass is treated but renewable energy can be generated. The raw material, biomass, was fed to an anaerobic digester that operates at 35 oC and produces biogas along with sludge biomass. The mixture of biogas and sludge biomass was separated with the help of flash unit and further separation was done by centrifuge to get concentrated biomass and water. The raw biogas was compress from 1 bar to 5 bar in order to remove ammonia from biogas. The biogas was upgraded to bio methane in an absorption column by treating biogas with potassium hydroxide. The biomass potential of Pakistan which is 853,500 tons/day can be utilized by using this process to generate 469,425 tons/day of bio methane. Cost analysis indicated that the chemical absorption is feasible.

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References

[1] Amjid et all, 2011, “Biogas, renewable energy resource for Pakistan. Renewable and Sustainable Energy Reviews”; 15 (6), pages 2833-2837.
[2] Ellabban et al, 2014, "Renewable energy resources: Current status, future prospects and their enabling technology. Renewable and Sustainable Energy Reviews”; 39, pages 748–764.
[3] B.Bharathiraja et al, 2016 “Bio hydrogen and Biogas –An overview on feedstock’s and enhancement process”; 810-828
[4] Iyyanki V.Muralikrishna “Environmental Management”;
Science and Engineering for Industry 2017, Pages 431-462

[5] Waqar Uddin et al, 2016 “Biogas potential for electric power generation in Pakistan: A survey”; pages 25-33
[6] www.blog.paksc.org, “Biogas can end Energy Crisis”;
Retrieved October 2, 2016

[7] www.biomethane.org.uk, “What is Bio Methane”; Retrieved October 2, 2016.
[8] Wojciech M. Budzianowski, 2011, “Benefits of biogas upgrading to bio methane by high-pressure reactive solvent scrubbing, Biofuels”, 6, pages 12-20.
[9] Alonso-Vicario et al, 2010, “Purification and upgrading of biogas by pressure swing adsorption on synthetic and natural zeolites. Micro porous and Mesoporous Materials.”; 134, pages 100-107.
[10] E. Ryckebosch, M. Drouillon, H. Vervaeren, 2011, “Techniques for transformation of biogas to bio methane. Biomass and bioenergy”; pages 1633-1645.
[11] Pradeep et al, 2016, “Biogas Upgrading Technologies: A Review. International Journal of Recent Technology Science & Management”, pages 2-4.
[12] Grazia Leonzio, 2016, “Upgrading of biogas to bio- methane with chemical absorption process: simulation and

environmental impact. Journal of Cleaner Production”; pages 364-375.
[13] Pradeep et al, 2016, “Biogas Upgrading Technologies: A Review. International Journal of Recent Technology Science & Management”, pages 2-4.

[14] H. Schultz et al, 2005, “Potassium Compounds in Ullman’s Encyclopedia of Industrial Chemistry”.


[15] Richard M. Feldar “Elementary Principles of Chemical Processes”; pages 635-637.
[16] Michael J. Moran & Howard N. Shapiro “Fundamentals of Thermodynamics”; pages 763-765.

[17] Abeam Khalid et al, 2011, “The anaerobic digestion of solid organic waste, Waste Management”; pages 1739-1744.

[18] Robin Smith “Chemical Process Design and Integration”; pages 17-33.

[19] www.gasequipment.com/catalogs/cryogenic/pdf/Blackmer
/Compressors/Comp%20Selection%20and%20Sizing.pdf, “Steps to compressor selection and sizing”; Retrieved January 24, 2017.
[20] www.irena.org/costs/Transportation/Biomethane.

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Published

2020-01-18