Hydrogenolysis of Glycerol to Propylene Glycol: Energy, Tech-Economic, and Environmental Studies.
Hydrogenolysis of Glycerol to Propylene Glycol: Energy, Tech-Economic, and Environmental Studies.
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DOI：
10.3389/fchem.2021.778579
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发表时间：
2021
影响因子：
5.5
通讯作者：
Jin X
中科院分区：
文献类型：
--
作者：
Sun P;Zhang W;Yu X;Zhang J;Xu N;Zhang Z;Liu M;Zhang D;Zhang G;Liu Z;Yang C;Yan W;Jin X
甘油氢解制丙二醇是生物质转化为化学品的最有前途的技术之一。然而，常规氢解工艺通常在苛刻的H2压力和温度下进行，导致在H2处理期间的密集的能量需求、快速的催化剂失活和潜在的安全风险。催化转移氢解（CTH）具有较高的能量和原子效率。研究了一系列新型固体催化剂用于甘油的CTH反应。在这项工作中，详细的研究已经进行了能源优化，技术经济分析，和环境影响的两个过程。关键的发现是，相对较少的能源需求和资本投资所需的CTH过程。在转移氢解的情况下，每次生产丙二醇的CO2排放量低得多。本研究结果可为其他能源和环境应用的新型氢解技术的工艺设计和实施提供有用的信息。
Hydrogenolysis of glycerol to propylene glycol represents one of the most promising technologies for biomass conversion to chemicals. However, conventional hydrogenolysis processes are often carried out under harsh H2 pressures and temperatures, leading to intensive energy demands, fast catalyst deactivation, and potential safety risks during H2 handling. Catalytic transfer hydrogenolysis (CTH) displays high energy and atom efficiency. We have studied a series novel solid catalysts for CTH of glycerol. In this work, detailed studies have been conducted on energy optimization, tech-economic analysis, and environmental impact for both processes. The key finding is that relatively less energy demands and capital investment are required for CTH process. CO2 emission per production of propylene glycol is much lower in the case of transfer hydrogenolysis. The outcome of this study could provide useful information for process design and implementation of novel hydrogenolysis technologies for other energy and environmental applications.