多孔介质中基于水合物的 CO2 封存的研究进展、成熟和挑战,ACS Sustainable Chemistry & Engineering

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多孔介质中基于水合物的 CO2 封存的研究进展、成熟和挑战
ACS Sustainable Chemistry & Engineering ( IF 7.1 ) Pub Date : 2021-11-02 , DOI: 10.1021/acssuschemeng.1c05423
Amirun Nissa Rehman _{1,

2} , Cornelius B. Bavoh _{1,

2} , Rajashekhar Pendyala _{1,

3} , Bhajan Lal _{1,

2}

Affiliation

基于水合物的 CO ₂封存/封存 (HBCS) 技术有可能通过成功的实验室规模实验克服现有的存储容量挑战，实现可持续发展目标 (SDG) 13 的任务，实现高效和安全的 CO ₂封存。在本文中，我们仔细审查并讨论了已报道的基本实验室规模实验尝试成功地将 CO ₂作为水合物储存在沉积物中。对多孔介质中CO ₂水合物形成的热力学、动力学和机理见解进行了批判性讨论，以揭示实施 HBCS 技术所面临的最新技术和当前挑战，并为实现高 CO ₂提供指导方针和途径存储容量。此外，还讨论了影响CO ₂水合物形成的因素和各种类型多孔介质中的水合物形成机制。控制多孔介质中CO ₂储存能力的主要因素是驱动力、孔隙率、毛细管效应、气液渗透率、粒径和表面积。然而，传质限制、潜在储存地点、CO ₂运输、CO ₂注入技术、成本、环境限制和CO ₂稳定性是HBCS 技术就绪的主要挑战。这项工作的发现提供了可能导致 CO ₂增加的有用指南和途径作为未来更清洁地球的水合物的储存能力。

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Research Advances, Maturation, and Challenges of Hydrate-Based CO2 Sequestration in Porous Media

Hydrate-based CO₂ storage/sequestration (HBCS) technique could potentially fulfill the mandate of the Sustainable Development Goal (SDG) 13 toward efficient and safe storage of CO₂ through successful lab-scale experimentation in overcoming the existing storage capacity challenges. In this article, we carefully reviewed and discussed the reported fundamental lab-scale experimental attempts to successfully store CO₂ as hydrate in sediments. The CO₂ hydrate formation thermodynamics, kinetics, and mechanism insights in porous media are critically discussed to reveal the state of the art and the current challenges facing the implementation of the HBCS technique and provide guidelines and pathways toward a high CO₂ storage capacity. In addition, factors affecting CO₂ hydrate formation and hydrate formation mechanisms in various types of porous media are discussed. Factors that mainly control the CO₂ storage capacity in porous media are driving force, porosity, capillary effect, gas and liquid permeability, particle size, and surface area. However, mass transfer limitation, potential storage site, CO₂ transportation, CO₂ injection technique, cost, environmental constraints, and CO₂ stability are the main challenges toward the technological readiness of the HBCS. The findings in this work provide useful guidelines and pathways which could lead to an increase in CO₂ storage capacity as hydrate for cleaner earth in the future.

更新日期：2021-11-15

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