综合生物气改造和中链脂肪酸生产,以提高资源回收效率
Kai-Kai Wu1, Lei Zhao2, Zi-Han Wang2
1School of Environment, State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China; Technical University of Denmark, Department of Environmental & Resource Engineering, DK-2800 Lyngby, Denmark.
Bioresource technology
|December 24, 2023
概括
这项研究将生物气升级与中链脂肪酸 (MCFA) 生产相结合,将二氧化碳 (CO2) 转化为有价值的生物化学品. 这种环保方法提高了资源回收,减少了对化石燃料的依赖.
科学领域:
- 生物技术是生物技术.
- 环境科学 环境科学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 来自生物气的二氧化碳 (CO2) 转化对于资源回收和气候变化缓解至关重要.
- 开发可持续的方法来将二氧化碳转化为有价值的产品是一个持续的挑战.
- 生物气改造和中链脂肪酸 (MCFA) 生产是生物化学合成的关键领域.
研究的目的:
- 引入和评估一种用于同时升级生物气和MCFA生产的新型综合系统.
- 通过确定理想的初始乙醇度来最大限度地提高MCFA产量来优化过程.
- 评估结合生物反应器系统的长期性能和效率.
主要方法:
- 研究了不同初始乙醇度对链条延长和MCFA产量的影响.
- 连续实施了一套连续的两台生物反应器系统,用于综合生物气升级和MCFA生产.
- 在160天内监测生物甲纯度,MCFA生产率和碳流分布.
主要成果:
- 发现初始的乙醇度为160 mmol/L,在45.7 mmol/L时最大限度地提高了MCFA产量.
- 综合系统实现了97.6%的生物甲纯度.
- 该系统显示高MCFA生产率为24.5 mmol/L/d,碳流分布为76.1%.
结论:
- 结合的生物气升级和MCFA生产系统代表了资源回收的开创性方法.
- 这种方法使生物气的高价值利用和二氧化碳有效转化为有价值的生物化学品成为可能.
- 该研究强调了减少对化石燃料的依赖和缓解气候变化的可持续途径.
相关概念视频
Bioremediation
18.5K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.5K
Fates of Pyruvate
8.5K
Pyruvate is the end product of glycolysis, where glucose is oxidized to pyruvate, simultaneously reducing NAD+ to NADH. Two molecules of ATP are also produced by substrate-level phosphorylation.
In aerobic organisms, pyruvate is metabolized via the citric acid cycle to produce reduced coenzymes NADH and FADH2. These coenzymes are then oxidized in the electron transport chain to produce ATP and, in the process, regenerate the NAD+ and FAD. As seen in some cell types and organisms, fermentation...
In aerobic organisms, pyruvate is metabolized via the citric acid cycle to produce reduced coenzymes NADH and FADH2. These coenzymes are then oxidized in the electron transport chain to produce ATP and, in the process, regenerate the NAD+ and FAD. As seen in some cell types and organisms, fermentation...
8.5K


