I D
× COMMENTARYCOVER STORYIN THE NEWSNEWSFRONTSCHEMENTATOR + Show More
Chemical Engineering MagazineChementator Briefs
PDH catalyst Last month, Clariant's Catalyst business (Munich, Germany; www.clariant.com)…
BUSINESS NEWSTECHNICAL & PRACTICALFEATURE REPORTFACTS AT YOUR FINGERTIPSTECHNOLOGY PROFILESOLIDS PROCESSINGENGINEERING PRACTICEEQUIPMENT & SERVICESFOCUS
Focus on Pumps
Self-priming, liquid-ring pumps enable hygienic operation The CFS AS/ASH Series…
NEW PRODUCTS + Show More

Comment PDF Environment, Health, Safety & Security

Chementator: Purifying ethanol without distillation

By Chemical Engineering |

Ultrasound Brewery Co. (Naruto, Japan; edlinks.chemengonline.com/5825-535) has developed a process that separates the water from dilute solutions of alcohol to achieve 99.5%, without using conventional evaporation or distillation. The company has tested the process in a pilot plant that produces 600–700 L/d of 99.5% ethanol from a 10–15% solution. The process, which combines irradiation with ultrasound (US) and zeolite adsorption, is said to consume about 1/8th the energy required for distillation. As a result, the overall cost for purifying ethanol is expected to be about a third of that for distillation, claims the firm. The company says the patented technology has been applied for making Japanese rice liquore (sake), and may also be suitable for other brewed alcohols, says the firm. The company is planning to commercialize the technology through alliances with chemical companies. In the new process, the dilute (10–15%) ethanol solution from a fermentation process (at 30°C) is fed to a vessel that has 300 ceramic piezo-electric US transducers — each operating at a frequency of 2.3 Mhz frequency and a power of 20 W — strategically located at the bottom. The US irradiation creates an ethanol-enriched…
Related Content

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
Quadruple Sensor Lifetime with a Retractable Housing
Minimizing Explosion Risk Where Other Solutions Cannot
Minimizing Corrosion with Fast, Robust Gas Analysis
Lower Measurement Point Costs with Automatic pH Sensor Cleaning
Reduce the Risk of Corrosion in Fertilizer Production

View More

Live chat by BoldChat