Butanol, Tomorrow’s Fuel, from Agricultural Residues

Butanol, Tomorrow’s Fuel, from Agricultural Residues

(Webinar length:  1h 0m)

Traditionally, butanol (a superior biofuel) is produced in a two-step process called batch fermentation and distillative recovery using substrates such as corn or molasses. In such a batch fermentation process butanol yield is low (less than 20 g/L). The reason behind low yield is severe butanol toxicity to the culture.  In order to combat this toxicity problem, the following two approaches have been attempted: i) development of a more tolerant strain, and/or ii) application of engineering techniques to combine fermentation and simultaneous product recovery. Employing the second approach, we successfully improved yield by a factor of 20 which is the highest ever achieved.

Production of butanol from agricultural residues is even more difficult and requires three separate steps known as hydrolysis of residues followed by fermentation and recovery. We were able to combine these three process steps (hydrolysis, fermentation, and recovery) into a single unit operation employing a feedstock of wheat straw. In this process, butanol yield was increased by a factor of 10. It is anticipated that production of butanol from agricultural residues, which are economically available, and combining process steps would result in significant energy savings compared to the traditional technology.

Learning Objectives:

  • Importance of butanol as a biofuel and chemical feedstock
  • Recent development of process techniques to improve ABE/butanol productivity
  • Development of alternate product (ABE/butanol) removal techniques
  • Process integration/consolidation to produce butanol from agricultural waste
  • Process economics of butanol production from wheat straw

Who will benefit:

  • Strategic Planning and Consulting Organizations
  • Human Resources and Public Relations Personnel
  • Operational Health and Safety Managers
  • Quality Control/Quality Assurance Managers
  • Production Managers
  • Regulatory Specialists
  • Government Agency Personnel

Presenter – Nasib Qureshi, PhD

Dr. Nasib Qureshi is widely known for his work on butanol fermentation, and upstream and downstream processing. He has been working as a Chemical Engineer for the United States Department of Agriculture since 2003. He is also an Adjunct Professor at the University of Illinois at Urbana-Champaign (IL, USA). Dr. Qureshi is an Editor in Chief of World Journal of Microbiology & Biotechnology and an Editor of recently published book on Biomass to Biofuels. He has been an Associate Editor for Renewable Energy. Dr. Qureshi has received numerous awards including from the American Chemical Society (ACS), United States Department of Agriculture, University of Nebraska (Lincoln, NE), and University Grants Committee, New Zealand. He has dual PhDs one in Fermentation Technology (University of Bombay) and the other in Biological Engineering (University of Nebraska, Lincoln, NE, USA). He was a post-doctoral fellow at Massey University New Zealand and University of Illinois at Urbana-Champaign (IL, USA)). Dr. Qureshi has been President/Chair of American Institute of Chemical Engineers (AIChE, Central Illinois, IL, 2008 & 2009), and American Chemical Society (Illinois Heartland, IL, 2008). He has published over 130 research papers, book chapters, and review articles, and given over 80 presentations in national/international conferences.

  • Item #: 0728bButn
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