Abstract
In this investigation, soybean seed hull peroxidase enzymes were immobilized within the sol-gel/calcium-alginate matrix to produce artificial phenolic polymers from the phenolic waste streams. The soybean peroxidase enzymes are having a rapid ability to polymerize phenols in the presence of hydrogen peroxide. The produced polymers are having comparable properties with the phenol-formaldehyde resins. This enzymatic property has been investigated to produce a value-added product from the waste streams. The phenolic resins are widely used in the automotive sector, aircraft construction, building construction, mechanical equipment industries, and refractory industries. However, in many areas applicability of phenolic resins is restricted due to the toxic nature of formaldehyde. The proposed enzymatic process can eliminate the usage of formaldehyde solvent and the reaction conditions are much milder than the conventional technique. In order to use the enzymes for a long time, they are immobilized within the porous matrix. However, it has been observed that the product phenolic polymer form a black layer coating on/within the biocatalyst and the enzymatic activity is decreased drastically within a short time. To overcome the product inhibition, a liquid solid circulating fluidized bed system has been proposed and studied for this enzymatic reaction. This system will allow a simultaneous reaction and a regeneration of the biocatalysts.
| Original language | English |
|---|---|
| Pages | 9036-9040 |
| Number of pages | 5 |
| Publication status | Published - 2005 |
| Externally published | Yes |
| Event | 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase - Cincinnati, OH, United States Duration: 30 Oct 2005 → 4 Nov 2005 |
Conference
| Conference | 05AIChE: 2005 AIChE Annual Meeting and Fall Showcase |
|---|---|
| Country/Territory | United States |
| City | Cincinnati, OH |
| Period | 30/10/05 → 4/11/05 |
ASJC Scopus subject areas
- General Engineering