Alternate Energy Solutions in Pune-Maharashtra,Arka Technologies

http://www.arkatechnologies.in/alternate-energy-solutions-pune.shtml

Alternate Energy Solutions in Pune-Maharashtra,Arka Technologies

http://www.arkatechnologies.in/alternate-energy-solutions-pune.shtml

Solutions

• Alternate Energy sources
• Energy conservation
• Conservation of natural resources
• Eco housing assessment and compliance
• 
  

biogas purrification

https://jyx.jyu.fi/dspace/bitstream/handle/123456789/41233/URN%3ANBN%3Afi%3Ajyu-201304221478.pdf?sequence=1

UNIVERSITY OF JYVÄSKYLÄ, Faculty of Mathematics and Science 

Department of Biological and Environmental Science 

 

Warren, Katie: Techno-economic comparison of biogas upgrading 

technologies in Europe 

Master of Science Thesis: 44 p. + appendices 13 p. 

Supervisors: University Lecturer Prasad Kaparaju, University Lecturer 

Saija Rasi 

Inspectors: 

August 2012 

 

 

Key Words: biogas cleaning, biogas upgrading, bio-methane, Europe, Finland, Germany, 

Sweden 

ABSTRACT 

Biogas can be cleaned and upgraded to be used as a vehicle fuel, injection into the gas grid, 

heat and power generation. The carbon dioxide removed from the process can be used be 

utilized by industry. The main biogas upgrading technologies in Europe are Pressure 

Swing Adsorption and Water Scrubbing. The first objective is to compare the economics 

of small, medium and large scale biogas upgrading plants in Europe. The second objective 

is to evaluate the technical feasibility of small scale biogas upgrading in Europe. This 

study used a self-designed questionnaire which is sent to biogas plant owners/operators. 

The questionnaire aims to assess the technical issues, process conditions, biogas 

production, the upgrading system, energy use and economics. It also included an in-depth 

literature review. 

 

It was evaluated that the economies of scale favour larger biogas plants where the desired 

scale should be between 500 and 1,400 Nm3

/hour of raw biogas. It is also not economically 

feasible for biogas plant smaller than 150 Nm3

/hour to injection into the grid or for 

commercial fuel stations. However, small scale biogas upgrading can be used to locally 

within small communities to heat, electric and vehicle farm which could be for example 

used on farm scale locations. The economics for smaller plants had much higher specific 

costs that the larger biogas upgrading plants. The economies of scale therefore, show that 

the larger plants are favoured for producing higher quality gas, lower methane loses, higher 

plant efficiency and higher profitability. The profit per Nm3 of upgraded biogas should be 

around 0.35-0.45 € to achiever the payback time of 5 years with small scale plants. This 

means that the cost price for biogas upgrading for small scale plants should be less than 

0.20-0.30 €/ Nm3

biogas desulfurization using biological processes

http://blog-en.condorchem.com/biogas-desulfurization-using-biological-processes/

Green Technology | Renewable Energy - Greenlane Biogas

http://greenlanebiogas.com/green-technology

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Fwd: Production of ethyl acetate from dilute ethanol solutions by Candida utilis - Armstrong - 2004 - Biotechnology and Bioengineering - Wiley Online Library

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Date: Fri, Mar 14, 2014 at 10:49 AM
Subject: Production of ethyl acetate from dilute ethanol solutions by Candida utilis - Armstrong - 2004 - Biotechnology and Bioengineering - Wiley Online Librar

http://onlinelibrary.wiley.com/doi/10.1002/bit.260260905/pdf

Technoeconomic analysis of an integrated microalgae photobioreactor, biodiesel and biogas production facility

Technoeconomic analysis of an integrated microalgae photobioreactor, biodiesel and biogas production facility
Razif Haruna, b, , , Michael D
http://www.sciencedirect.com/science/article/pii/S0961953410003594

Abstract

As fossil fuel prices increase and environmental concerns gain prominence, the development of alternative fuels from biomass has become more important. Biodiesel produced from microalgae is becoming an attractive alternative to share the role of petroleum. Currently it appears that the production of microalgal biodiesel is not economically viable in current environment because it costs more than conventional fuels. Therefore, a new concept is introduced in this article as an option to reduce the total production cost of microalgal biodiesel. The integration of biodiesel production system with methane production via anaerobic digestion is proved in improving the economics and sustainability of overall biodiesel stages. Anaerobic digestion of microalgae produces methane and further be converted to generate electricity. The generated electricity can surrogate the consumption of energy that require in microalgal cultivation, dewatering, extraction and transesterification process. From theoretical calculations, the electricity generated from methane is able to power all of the biodiesel production stages and will substantially reduce the cost of biodiesel production (33% reduction). The carbon emissions of biodiesel production systems are also reduced by approximately 75% when utilizing biogas electricity compared to when the electricity is otherwise purchased from the Victorian grid. The overall findings from this study indicate that the approach of digesting microalgal waste to produce biogas will make the production of biodiesel from algae more viable by reducing the overall cost of production per unit of biodiesel and hence enable biodiesel to be more competitive with existing fuels.

Keywords

• Microalgae; 
• Tetraselmis suecica; 
• Photobioreactor; 
• Biodiesel; 
• Anaerobic digestion; 
• Biogas

Corresponding author. Bio Engineering Laboratory (BEL), Department of Chemical Engineering, Monash University, PO Box 36, Clayton, Victoria 3800, Australia. Tel.: +613 99051347.

Copyright © 2010 Elsevier Ltd. All rights reserved.

biogas bioethanol www.bioenergybaltic.ee/bw_client_files/bioenergybaltic/public/img/File/BOVA/Popiel_BOVA_Integration_of_biogas_and_bioethanol_process.pdf

http://www.bioenergybaltic.ee/bw_client_files/bioenergybaltic/public/img/File/BOVA/Popiel_BOVA_Integration_of_biogas_and_bioethanol_process.pdf

Fwd: A new thematic series on the 20th International Symposium onAlcohol Fuels (ISAF2013)

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Date: Fri, Feb 28, 2014 at 7:03 AM
Subject: A new thematic series on the 20th International Symposium onAlcohol Fuels (ISAF2013)
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Dear Dr Pannirselvam, As a registrant of Biotechnology for Biofuels, we wanted to let you know about our latest thematic series from the 20th International Symposium on Alcohol Fuels (ISAF2013). Guest edited by Emile van Zyl (University of Stellenbosch), the thematic series highlights the most recent advances in alcohol technologies and their applications in developing sustainable biofuel options for the future. This includes advances in conversion technologies for a wide variety of feedstocks and the developments in microbes for raw starch and lignocellulose conversion. Remember to keep an eye out for the commentary paper from Lee Lynd et al, coming soon, on the potential role of bioenergy in Africa's transformation to a more sustainable continent. Below are some highlights from the series: Editorial   Special issue from the 20th International Symposium on Alcohol Fuels (ISAF 2013): alcohol fuels enabling sustainable future development Willem Heber van Zyl Biotechnology for Biofuels 2013, 6:176 (1 December 2013) Abstract | Full text | PDF | PubMed Research article   Techno-economic potential of bioethanol from bamboo in China Jade Littlewood, Lei Wang, Colin Turnbull, Richard J Murphy Biotechnology for Biofuels 2013, 6:173 (29 November 2013) Abstract | Full text | PDF | ePUB | PubMed Research article   Bioethanol production from rice straw by popping pretreatment Seung Wi, In Choi, Kyoung Kim, Ho Kim, Hyeun-Jong Bae Biotechnology for Biofuels 2013, 6:166 (29 November 2013) Abstract | Full text | PDF | ePUB | PubMed Biotechnology for Biofuels is an open access, peer-reviewed online journal featuring high-quality studies describing technological and operational advances in the production of biofuels from biomass. Submit your next manuscript to Biotechnology for Biofuels to take full advantage of: Open access, ensuring wide dissemination of research Rapid publication upon acceptance No space constraints or limits on color figures Inclusion in PubMed and other freely accessible full-text repositories Compliance with the open access mandates including the NIH Public Access Policy and the Wellcome Trust open access policy You can also keep up to date with published articles by registering to receive email article alerts. With best wishes, Michael E Himmel, National Renewable Energy Laboratory Debra Mohnen, University of Georgia Charles E Wyman, University of California, Riverside James C du Preez, University of the Free State Editors-in-Chief, Biotechnology for Biofuels

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