The performance of an upÑow packed-bed bioÐlm reactor was investigated by considering simultaneous methanogenesis and denitriÐcation reactions under step and sinusoidal variations of feed concentration and temperature. For simultaneous step inputs of 20 mg dm~3 of and 60 mg dm~3 of meth-NO 3 ~wN ano
An approach in mathematical modeling of an upflow packed-bed reactor for enzymatic hydrolysis of wheat straw
✍ Scribed by G. Gonzàlez; G. Caminal; C. de Mas; J. Lòpez-Santín
- Publisher
- John Wiley and Sons
- Year
- 1989
- Tongue
- English
- Weight
- 648 KB
- Volume
- 34
- Category
- Article
- ISSN
- 0006-3592
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✦ Synopsis
The behavior of a packed-bed reactor for enzymatic hydrolysis of pretreated wheat straw has been described by means of a mathematical model. The flow pattern has been evaluated by residence time distribution experiments. Small deviations from ideal plug flow behavior were found using the dispersion model. The kinetic model proposed for enzymatic hydrolysis of cellulosic fraction of pretreated wheat straw has been derived from batch experimental data. Variations of enzyme concentration throughout the straw bed have been approximately described using a ramp variation of adsorbed enzyme. The final explains qualitatively the experimental results.
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