I D
× COMMENTARYEDITOR'S PAGECOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical Engineering MagazineChementator Briefs
Nanofiltration Toray Industries, Inc. (Tokyo, Japan; www.toray.com) has created what…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILEEQUIPMENT & SERVICESFOCUSNEW PRODUCTS + Show More SHOW PREVIEWS

Comment PDF

Microbes convert stack gases to fuels and chemicals

By Gerald Parkinson |

A demonstration plant for a biological process that produces ethanol and 2,3 butanediol (2,3-BD) from the offgases of industrial plants will be started up in the third quarter of 2011 at a steel mill operated by Bao Steel (Shanghai). Developed by LanzaTech (Auckland, New Zealand; www.lanzatech.co.nz), the process will produce about 100,000 gal/yr of ethanol from a slipstream of stack gases, says Mike Schultz, the company’s director of process development. He adds that negotiations are under way with Bao for a 50-million-gal/yr commercial plant that would start up toward the end of 2012. LanzaTech’s process (flowsheet) converts carbon monoxide to ethanol by means of a specially cultivated strain of the Clostridium bacterium. The steel mill’s waste gases mainly consist of CO, plus some H2, CO2, CH4 and O2. Particulate matter is filtered from the gases, then the O2 is removed catalytically, since the bacterium is anaerobic. The rest of the gas mixture is sparged into the aqueous solution of bacteria and converted to ethanol in a continuous process, at 35–40°C. Hydrogen (needed for the process) is generated via a biological, water-gas-shift reaction, although if H2 is present in the gas stream this reaction…
Related Content
A less expensive way to make graphene
A team from RMIT University (Melbourne, Australia; www.rmit.edu.au) and the National Institute of Technology, Warangal (Warangal, India; www.nitw.ac.in) has developed…

Chemical Engineering publishes FREE eletters that bring our original content to our readers in an easily accessible email format about once a week.
Subscribe Now
How separation processes profit from Industrial Internet of Things (IIoT) solutions
Up to 80% increased production rates in plastic recycling
Higher throughput and purity in sodium bicarbonate production with up to 15% less energy consumption
Help feeding nations with chemical filtering technologies
Not at the forefront of Industry 4.0?

View More

Live chat by BoldChat