通过清洁工艺从城市固体废物中高效生产生物氢和先进生物燃料。
Efficient biohydrogen and advanced biofuel coproduction from municipal solid waste through a clean process.
机构信息
Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran.
Department of Chemical Engineering, Isfahan University of Technology, Isfahan 84156-83111, Iran; Industrial Biotechnology Group, Research Institute for Biotechnology and Bioengineering, Isfahan University of Technology, Isfahan 84156-83111, Iran.
出版信息
Bioresour Technol. 2020 Mar;300:122656. doi: 10.1016/j.biortech.2019.122656. Epub 2019 Dec 20.
The cleanest form of energy, i.e., biohydrogen, and advanced biofuel, i.e., biobutanol, were produced from the organic fraction of municipal solid waste (OFMSW). Ethanol as a byproduct of this process was used for the pretreatment of this substrate, and this pretreatment was improved by other process byproducts, i.e., acetic acid and butyric acid. The pretreatment was conducted with 85% ethanol and 0-1% (w/w) acetic/butyric acid at 120 and 160 °C for 30 min. The pretreatment catalyzed by 1% (w/w) acetic acid at 120 °C resulted in a hydrolysate with 49.8 g/L total fermentable sugars, which was fermented to the highest overall yield of acetone, butanol, and ethanol (ABE) and hydrogen. Through this process, 114.1 g butanol, 43.8 g acetone, 15.1 g ethanol, 97.5 L hydrogen were obtained from each kg of OFMSW, producing 270 g ABE and 151 L H from each kg of substrate, corresponding to 6000 kJ energy production.
从城市固体废物（MSW）的有机部分（OFMSW）中生产出最清洁的能源形式，即生物氢气，以及先进的生物燃料，即生物丁醇。该过程的副产物乙醇用于该基质的预处理，并且通过其他工艺副产物（即乙酸和丁酸）对该预处理进行了改进。预处理在 120 和 160°C 下使用 85%乙醇和 0-1%（w/w）乙酸/丁酸进行 30 分钟。在 120°C 下用 1%（w/w）乙酸催化的预处理可得到总发酵糖含量为 49.8 g/L 的水解产物，将其发酵可得到最高的丙酮、丁醇和乙醇（ABE）和氢气总产量。通过该工艺，从每公斤 OFMSW 中获得 114.1 克丁醇、43.8 克丙酮、15.1 克乙醇、97.5 升氢气，从每公斤基质中可生产 270 克 ABE 和 151 升 H，相当于 6000 kJ 的能量产生。
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