Production of phenolic compounds using waste coir pith: Estimation of kinetic and thermodynamic parameters.

Abstract:

:The present study illustrates the production of phenolic compounds via slow pyrolysis of coir pith biomass in a bench-scale reactor. The primary objective of the study is to optimize the pyrolysis conditions to maximize the yield of bio-oil and phenolic compounds. Up to 88.14% phenolic compounds were obtained in the organic fraction of the bio-oil obtained at 350 °C. The phenolic compounds thus extracted can be used for the production of phenol-formaldehyde resins, which reduces the dependence on petroleum-based phenols for the manufacturing of resin. An independent kinetic analysis of the apparent pyrolysis reaction was also performed using thermogravimetry and isoconversional methodology. The calculated values of activation energy showed a variation from 28.41 to 200.09 kJ/mol, with the mean value being 140 kJ/mol. The thermodynamic parameters (ΔS, ΔH, and ΔG) were subsequently evaluated at different conversions using the activation energy values obtained from the kinetic analysis.

journal_name

Bioresour Technol

journal_title

Bioresource technology

authors

Awasthi A,Dhyani V,Biswas B,Kumar J,Bhaskar T

doi

10.1016/j.biortech.2018.11.073

subject

Has Abstract

pub_date

2019-02-01 00:00:00

pages

173-179

eissn

0960-8524

issn

1873-2976

pii

S0960-8524(18)31607-9

journal_volume

274

pub_type

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