Production of anhydrous ethanol using oil palm empty fruit bunch in a pilot plant
Production of anhydrous ethanol using oil palm empty fruit bunch in a pilot plant
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中试工厂利用油棕空果串生产无水乙醇
DOI：
10.1016/j.biombioe.2014.04.022
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发表时间：
2014
期刊：
影响因子：
--
通讯作者：
Gi
中科院分区：
文献类型：
--
作者：
Hyung;K. Kang;Jun;Gyeongtaek Gong;Jae;H. Abimanyu;B. Ahn;D. Suh;Gi
利用木质纤维素生物质生产生物乙醇作为替代能源引起了越来越多的兴趣，但短期商业化将需要多种技术，例如低成本原料。棕榈油工业产生的大量油棕空果串（EFB）可用作廉价、可再生原料的原材料，用于进一步的商业开采。这项研究利用中试规模的生物乙醇工厂，研究了利用油棕空果串作为可再生资源的可能性。生物乙醇生产过程如预处理、水解、发酵、纯化等均构建为自动控制的一体化流程。质量平衡是根据操作结果计算的。昌海乙醇采用氢氧化钠多重爆炸预处理，改进酶解工艺，采用单独的水解发酵工艺生产生物乙醇，乙醇转化率为83.6%。为了纯化乙醇，操作了蒸馏和脱水设施。蒸馏和脱水效率分别为98.9%和99.2%。可以使用中试规模生物乙醇工厂的运行结果来计算物料平衡。结果，可以从 1000 kg EFB 生产 144.4 kg 无水乙醇（99.7 wt%）。这一结果对利用木质纤维素生物质生产生物乙醇的可行性做出了重大贡献，并证明了中试工厂扩大到商业规模工厂的合理性。
Bioethanol production from lignocellulosic biomass for use as an alternative energy resource has attracted increasing interest, but short-term commercialization will require several technologies such as low cost feedstock. The huge amount of oil palm empty fruit bunches (EFB) generated from palm oil industries can be used as a raw material for cheap, renewable feedstock for further commercial exploitation. Using a pilot-scale bioethanol plant, this study investigated the possibility of utilizing oil palm empty fruit bunches as a renewable resource. All bioethanol production processes such as pretreatment, hydrolysis, fermentation, and purification were constructed as automatically controlled integrated processes. The mass balance was calculated from operational results. Changhae ethanol multiexplosion pretreatment with sodium hydroxide was conducted to improve the enzymatic hydrolysis process, and a separate hydrolysis and fermentation process was used for producing bioethanol at an 83.6% ethanol conversion rate. In order to purify the ethanol, a distillation and dehydration facility was operated. Distillation and dehydration efficiencies were 98.9% and 99.2%, respectively. The material balance could be calculated using results obtained from the operation of the pilot-scale bioethanol plant. As a result, it was possible to produce 144.4 kg anhydrous ethanol (99.7 wt%) from 1000 kg EFB. This result constitutes a significant contribution to the feasibility of bioethanol production from lignocellulosic biomass and justifies the pilot plant's scale-up to a commercial-scale plant.