Zhang Yong-Tao, Chen Fu-Lin, Yu Shi-Jie, Wang Fei
College of Electromechanical Engineering, Shandong Engineering Laboratory for Preparation and Application of High-Performance Carbon-Materials, Qingdao University of Science & Technology, Qingdao, China.
Military Representative Office of Army, Qingdao, China.
Front Chem. 2020 Jul 8;8:514. doi: 10.3389/fchem.2020.00514. eCollection 2020.
Gas hydrates have promising application prospects in the fields of future energy sources, natural gas storage and transportation, CO capture and sequestration, gas separation, and cold energy. However, the application of hydrate technologies is being restricted due to the slow formation rate of gas hydrates. Kinetic promoters have been receiving increased attention, given that they can improve the hydrate formation rate with very small doses and do not affect gas storage capacity. However, most kinetic promoters are non-renewable, petrochemical-derived, non-degradable materials, inevitably leading to resource waste and environmental pollution. Biopromoters, derived from biomass, are renewable, biodegradable, environmentally friendly, non-toxic (or low toxic), and economically feasible. This mini review summarizes the current status of already discovered biopromoters, including lignosulfonate, amino acid, biosurfactant, and biological porous structures, which have the potential to replace petrochemical-derived promoters in hydrate technologies. Finally, future research directions are given for the development of biopromoters.
气体水合物在未来能源、天然气储存与运输、二氧化碳捕集与封存、气体分离以及冷能等领域具有广阔的应用前景。然而，由于气体水合物形成速率缓慢，水合物技术的应用受到了限制。动力学促进剂受到了越来越多的关注，因为它们可以用非常小的剂量提高水合物的形成速率，并且不影响气体储存容量。然而，大多数动力学促进剂是不可再生的、石化衍生的、不可降解的材料，不可避免地导致资源浪费和环境污染。源自生物质的生物促进剂是可再生的、可生物降解的、环境友好的、无毒（或低毒）且经济可行的。本综述总结了已发现的生物促进剂的现状，包括木质素磺酸盐、氨基酸、生物表面活性剂和生物多孔结构，它们有可能在水合物技术中取代石化衍生的促进剂。最后，给出了生物促进剂未来的研究方向。
