Centre for Sustainable Technologies, Department of Chemical Engineering, School of Energy Technology, Pandit Deendayal Energy University, Raisan, Gandhinagar, Gujarat, 390019, India.
Sustainability Centre of Excellence, Larsen & Toubro Technology Services, Vadodara, Gujarat, 382426, India.
Environ Sci Pollut Res Int. 2024 Jul;31(32):44608-44648. doi: 10.1007/s11356-024-34139-3. Epub 2024 Jul 4.
The urgent need to address global carbon emissions and promote sustainable energy solutions has led to a growing interest in carbon dioxide (CO) conversion technologies. Among these, the transformation of CO into methanol (MeOH) has gained prominence as an effective mitigation strategy. This review paper provides a comprehensive exploration of recent advances and applications in the direct utilization of CO for the synthesis of MeOH, encompassing various aspects from catalysts to market analysis, environmental impact, and future prospects. We begin by introducing the current state of CO mitigation strategies, highlighting the significance of carbon recycling through MeOH production. The paper delves into the chemistry and technology behind the conversion of CO into MeOH, encompassing key themes such as feedstock selection, material and energy supply, and the various conversion processes, including chemical, electrochemical, photochemical, and photoelectrochemical pathways. An in-depth analysis of heterogeneous and homogeneous catalysts for MeOH synthesis is provided, shedding light on the advantages and drawbacks of each. Furthermore, we explore diverse routes for CO hydrogenation into MeOH, emphasizing the technological advances and production processes associated with this sustainable transformation. As MeOH holds a pivotal role in a wide range of chemical applications and emerges as a promising transportation fuel, the paper explores its various chemical uses, transportation, storage, and distribution, as well as the evolving MeOH market. The environmental and energy implications of CO conversion to MeOH are discussed, including a thermodynamic analysis of the process and cost and energy evaluations for large-scale catalytic hydrogenation.
解决全球碳排放问题和推广可持续能源解决方案的迫切需求,促使人们对二氧化碳(CO)转化技术产生了浓厚兴趣。在这些技术中,将 CO 转化为甲醇(MeOH)作为一种有效的减排策略引起了广泛关注。本综述论文全面探讨了直接利用 CO 合成 MeOH 的最新进展和应用,涵盖了从催化剂到市场分析、环境影响和未来展望等各个方面。
我们首先介绍了 CO 减排策略的现状,强调了通过 MeOH 生产实现碳循环的重要性。论文深入探讨了 CO 转化为 MeOH 的化学和技术,包括原料选择、物质和能源供应以及各种转化过程,如化学、电化学、光化学和光电化学途径。详细分析了用于 MeOH 合成的多相和均相催化剂,阐明了每种催化剂的优缺点。
此外,我们还探讨了 CO 加氢合成 MeOH 的多种途径,重点介绍了与这种可持续转化相关的技术进步和生产工艺。由于 MeOH 在广泛的化学应用中具有重要地位,并作为一种有前途的运输燃料崭露头角,因此论文还探讨了其各种化学用途、运输、储存和分配,以及不断发展的 MeOH 市场。还讨论了 CO 转化为 MeOH 的环境和能源影响,包括对该过程的热力学分析以及大规模催化加氢的成本和能源评估。
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