Biofiltration of waste gases in a reactor with a split-feed

✍ Scribed by JA Mendoza; MC Veiga; C Kennes

• Book ID: 102326546
• Publisher: Wiley (John Wiley & Sons)
• Year: 2003
• Tongue: English
• Weight: 138 KB
• Volume: 78
• Category: Article
• ISSN: 0268-2575
• DOI: 10.1002/jctb.846

✦ Synopsis

Abstract

The efficiency of using different feed strategies was evaluated in the case of a gas‐phase biofilter packed with an inert carrier material. During a preliminary control‐period, the biofilter was first fed with a single downflow feed of toluene. Reactor performance and biomass distribution were evaluated. The feed was then split into two flows before entering the reactor. Different feed ratios were tested during a 6‐month period, following the preliminary control stage. Splitting the feed into equal flow rates through the upper and middle part of the biofilter (in a 50 : 50 ratio) improved the performance compared with the single‐feed period. Such a high performance could also be maintained when using a higher flow rate for the upper port than for the middle port, with a feed‐ratio of approximately 70 : 30, when more biomass was formed in the upper half of the filter bed. However, performance decreased when inverting this ratio from 70 : 30 to 30 : 70, ie when the highest flow rate was fed through the middle port of the biofilter. Copyright © 2003 Society of Chemical Industry