Biomass Processing Cluster, Centre for Biofuel and Biochemical Research, Institute for Sustainable Living, Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia.
Biomass Processing Cluster, Centre for Biofuel and Biochemical Research, Institute for Sustainable Living, Chemical Engineering Department, Universiti Teknologi PETRONAS, 32610 Seri Iskandar, Perak, Malaysia.
Bioresour Technol. 2018 May;255:189-197. doi: 10.1016/j.biortech.2018.01.132. Epub 2018 Jan 31.
The impacts of low-transition-temperature mixtures (LTTMs) pretreatment on thermal decomposition and kinetics of empty fruit bunch (EFB) were investigated by thermogravimetric analysis. EFB was pretreated with the LTTMs under different duration of pretreatment which enabled various degrees of alteration to their structure. The TG-DTG curves showed that LTTMs pretreatment on EFB shifted the temperature and rate of decomposition to higher values. The EFB pretreated with sucrose and choline chloride-based LTTMs had attained the highest mass loss of volatile matter (78.69% and 75.71%) after 18 h of pretreatment. For monosodium glutamate-based LTTMs, the 24 h pretreated EFB had achieved the maximum mass loss (76.1%). Based on the Coats-Redfern integral method, the LTTMs pretreatment led to an increase in activation energy of the thermal decomposition of EFB from 80.00 to 82.82-94.80 kJ/mol. The activation energy was mainly affected by the demineralization and alteration in cellulose crystallinity after LTTMs pretreatment.
采用热重分析研究了低共熔混合物（LTTMs）预处理对空果串（EFB）热分解及动力学的影响。EFB 用 LTTMs 进行预处理，预处理时间不同，其结构也会发生不同程度的变化。TG-DTG 曲线表明，LTTMs 预处理使 EFB 的分解温度和速率向更高值移动。经过 18 h 预处理，以蔗糖和氯化胆碱为基础的 LTTMs 预处理的 EFB 挥发分的最大失重率达到了 78.69%和 75.71%。对于基于谷氨酸单钠的 LTTMs，经过 24 h 预处理的 EFB 实现了最大的质量损失（76.1%）。根据 Coats-Redfern 积分法，LTTMs 预处理导致 EFB 热分解的活化能从 80.00 增加到 82.82-94.80 kJ/mol。活化能主要受 LTTMs 预处理后脱矿质和纤维素结晶度变化的影响。
