Abstract: The selection of a suitable type of reactor for the reaction with enzymes immobilized on the carriers is extremely important to industry. In this study the possibility of using pre-selected cellulose-based carriers (Granocel) to conduct the reaction in a stirred batch reactor and a fixed-bed reactor was investigated. It was shown that non-activated Granocel did not undergo compression...

A concise review of relevant experimental observations and modeling of high-pressure tricklebed reactors, based on recent studies, is presented. The following topics are considered: flow regime transitions, pressure drop, liquid holdup, gas-liquid interfacial area and mass-transfer coefficient, catalyst wetting efficiency, catalyst dilution with inert fines, and evaluation of tricklebed models ...

Since enactment of the 1990 amendments to the Clean Air Act, the control and removal of volatile organic compounds (VOCs) from contaminated air streams have become a major public concern (1). Consequently, considerable interest has evolved in developing more economical technologies for cleaning contaminated air streams, especially dilute air streams. Biofiltration has emerged as a practical air...

Propylene glycol, also known as 1,2 propanediol, is one of the most important chemicals in industry. It a water-soluble liquid, considered by U.S. Food and Drug Administration safe to manufacture consumer products, including foodstuffs, medicines, cosmetics. This chemical has essential properties, such solvent, moisturizer, or antifreeze, addition low level toxicity. paper aims present selectio...

In this study, a mathematical model is proposed which incorporates mass transfer process and biofilm reactions in trickle bed air biofilter (TBAB). The model consists of a set of mass balance equations for isopropyl alcohol (IPA), acetone (ACE) and oxygen within the bulk gas phase and within the biofilm. These set of ordinary differential equations are converted into non-dimensionalised form an...