Thermo-Catalytic Processes Area (TPA), Bio-Fuels Division (BFD), CSIR-Indian Institute of Petroleum (IIP), Dehradun 248005, India.
Thermo-Catalytic Processes Area (TPA), Bio-Fuels Division (BFD), CSIR-Indian Institute of Petroleum (IIP), Dehradun 248005, India; Academy of Scientific and Innovative Research (AcSIR), India.
Bioresour Technol. 2019 Feb;274:173-179. doi: 10.1016/j.biortech.2018.11.073. Epub 2018 Nov 22.
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.
本研究通过在实验室规模的反应器中对椰壳纤维生物质进行慢速热解，展示了酚类化合物的生成。该研究的主要目的是优化热解条件，以最大限度地提高生物油和酚类化合物的产量。在 350°C 下获得的生物油的有机部分中，酚类化合物的收率高达 88.14%。由此提取的酚类化合物可用于生产酚醛树脂，从而减少对制造树脂用石油基酚的依赖。还使用热重法和等转化率方法对表观热解反应进行了独立的动力学分析。计算出的活化能值在 28.41 至 200.09 kJ/mol 之间变化，平均值为 140 kJ/mol。随后，使用从动力学分析中获得的活化能值，在不同转化率下评估了热力学参数（ΔS、ΔH 和 ΔG）。
