Department of Chemical Engineering and National Center for Combustion Research and Development, Indian Institute of Technology, Madras, Chennai 600036, India.
Department of Chemical Engineering and National Center for Combustion Research and Development, Indian Institute of Technology, Madras, Chennai 600036, India.
Bioresour Technol. 2020 Aug;310:123394. doi: 10.1016/j.biortech.2020.123394. Epub 2020 Apr 18.
This study is focused on kinetics and product distribution from untreated empty oil palm fruit bunch (EOPFB) biomass and treated EOPFB using analytical pyrolysis combined with gas chromatograph/mass spectrometer and Fourier transform infrared spectrometer, and microwave pyrolysis. Industrial water wash led to significant reduction in ash content of EOPFB from 5.9 wt% to 0.7 wt%. Isothermal mass loss data collected in the temperature range of 400-700 °C showed that fast pyrolysis in the Pyroprobe® reactor followed diffusion-controlled kinetics with apparent activation energies of 30.4 and 39.6 kJ mol for untreated and treated EOPFB, respectively. Analytical pyrolysis of untreated EOPFB resulted in high selectivity to fatty acids, while phenolics dominated the pyrolysates from treated EOPFB. The selectivities to phenolic compounds were 74% and 57% from treated and untreated EOPFB, respectively, via microwave pyrolysis. The higher heating values of bio-crude from microwave pyrolysis of untreated and treated EOPFB were 30.1 and 29.7 MJ kg, respectively.
本研究聚焦于未处理的油棕鲜果串（EOPFB）生物质和经处理的 EOPFB 的动力学和产物分布，采用分析热解结合气相色谱/质谱和傅里叶变换红外光谱以及微波热解进行研究。工业水洗导致 EOPFB 的灰分含量从 5.9wt%显著降低至 0.7wt%。在 400-700°C 的温度范围内收集的等温热失重数据表明，Pyroprobe®反应器中的快速热解遵循扩散控制动力学，未经处理和处理的 EOPFB 的表观活化能分别为 30.4 和 39.6kJ/mol。未经处理的 EOPFB 的分析热解导致脂肪酸具有高选择性，而酚类化合物则主导了经处理的 EOPFB 的热解产物。经微波热解，处理和未处理的 EOPFB 的酚类化合物选择性分别为 74%和 57%。未经处理和处理的 EOPFB 的微波热解生物原油的高位发热量分别为 30.1 和 29.7MJ/kg。
