Indian Institute of Technology Bombay

Compressed Biogas: Technology, Scale-Up, & Feasibility Assessment

Indian Institute of Technology Bombay

Chemical Engineering

About Programme

Compressed Biogas (CBG) is an industrial form of biogas generated through anaerobic digestion from various waste biomass sources like agricultural residue, cattle dung, sugarcane press mud, poultry waste, biodegradable part of municipal solid waste, and sewage treatment plant waste. The biogas generated from anaerobic digestion can be purified to increase the methane content and can subsequently compressed so that it can be used for various commercial applications. The CBG is similar to compressed natural gas (CNG) in its composition and energy content. Due to this similarity, CBG is a greener and a locally available alternative to CNG for automotive and power generation applications. CBG also has other benefits such as sustainable waste management, additional revenue sources for farmers, and greater entrepreneurship and employment opportunities, particularly in rural areas. The Government of India (GOI), through the Ministry of Petroleum and Natural Gas (MoPNG) and PSU Oil Marketing Companies (OMCs), has proposed the SATAT (Sustainable Alternative Towards Affordable Transportation) scheme in 2018. Through this scheme, it is targeted to set-up 5000 biogas plants producing 15 MMTPA of compressed biogas (CBG). Although the response to the scheme has been encouraging, many associated challenges still need to be addressed. The short-term training program is designed to cover current status and challenges in the area of CBG. The training program will set the foundation by discussing the basics of anaerobic digestion. Subsequently, biogas production from different feedstock of relevance will be discussed. Available technologies and practical challenges will be reviewed. Finally, the aspect of scale-up and commercialization will be investigated through case studies. At the end of the course, participants will be expected to have a broach understanding of the science, technologies, and business models as well as challenges associated with CBG. Broad Objectives/Course Outline: The course has the following important objectives: Review current status of CBG technologies and government schemes Discuss the science and engineering of various technologies of anaerobic digestion (AD) Understand the impact of different feedstock on AD and biogas yield Discuss feedstock pretreatment and biogas purification options Discuss scale-up challenges and techno-economic assessment methodologies By the end of this course, participants will be able to do: Identify the various AD technologies and their unique features Analyze the suitability of a technology for a particular feedstock Perform basic calculations to quantify the performance of the AD and CBG plant Identify scale-up challenges and perform basic techno-economic calculations Recommend desirable solution for a particular combination of region and feedstock

Programme Content

Introduction to Compressed Biogas (CBG) & its role in energy matrix, CBG production process overview CBG Production Technologies: Feedstocks, purification and upgradation requirements, SATAT scheme, business models Basics of anaerobic treatment, Steps in anaerobic process, Reactor types. Applications of anaerobic treatment, New development, Benefits and limitations Status of agricultural waste to biogas, residue specific processing challenges, relevant scales, technological and practical issues, case studies Pretreatment options for AD of agricultural residue Visit to the biogas plant on IIT Bombay campus. Purification processes, available technologies, performance and costs, scale dependency, new methods Role of MSW in CBG production, conversion of MSW to CBG, distinguishing features Reactor designs and challenges; Case studies Visit to laboratories of faculty members working on biogas related research Summary of commercial plants. Case study on the techno-economic and life cycle assessment of CBG plants from agricultural residue

Programme Benefits

HANDS ON FACILITY:
No specific hands on facility is necessary for this course.

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Prashansa Uttam

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+91 9403890085[email protected]Mon – Fri, 9am – 5pm IST

Indian Institute of Technology Bombay

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https://www.iitb.ac.in
Mumbai, India

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Compressed Biogas: Technology, Scale-Up, & Feasibility Assessment | IIT Bombay