I-Corps: CO2 hydrate production for large-scale CO2 sequestration

I-Corps：用于大规模二氧化碳封存的二氧化碳水合物生产

基本信息

批准号：
2202071
负责人：
Vaibhav Bahadur
金额：
$ 5万
依托单位：
University of Texas at Austin
依托单位国家：
美国
项目类别：
Standard Grant
财政年份：
2022
资助国家：
美国
起止时间：
2022-03-15 至 2023-12-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=2202071&HistoricalAwards=false
关键词：
Corps CO2 hydrate production large

项目摘要

The broader impact/commercial potential of this I-Corps project is the development of technology to sequester carbon dioxide (CO2) as CO2 hydrates. CO2 hydrates are ice-like solids, consisting of CO2 and water. Stable CO2 hydrates form at ~0 ̊C, and at moderate pressures (~450 psi) from a mixture of CO2 and water. CO2 hydrates can be safely sequestered long-term via multiple options (under seabed, under permafrost, depleted gas fields). This I-Corps project targets eventual commercialization of CO2 hydrates-based carbon capture and sequestration (CCS). Many commercialization partners exist among process industries, oil-gas industry, and utilities. A likely post-project scenario involves establishing a startup company as the commercialization vehicle (which develops sector-specific CCS solutions). Successful commercialization may lead to significant employment opportunities, and contribute to positioning the US as a leader in this field. Most importantly, it will augment the portfolio of technological and geoengineering solutions to tackle climate change. This project also will stimulate other applications of gas hydrates including desalination, gas separation and hydrogen storage.This I-Corps project is based on the development of technology to rapidly form CO2 hydrates from a mixture of CO2 and water. Key technological challenges underlying artificial synthesis of hydrates have been very slow growth rates, and low conversion rates of gas to hydrates. State of the art technology to speed up hydrate formation includes the use of chemical promoters, which are expensive and environmentally friendly. The team at UT Austin has made several scientific discoveries and developed multiple novel approaches to speed up growth of hydrates, which may cumulatively speed up hydrate formation by an order of magnitude faster than state-of-the-art. Specific novel advancements integrated in the proposed technology include recently discovered hydrate nucleation promoters, a technique to enhance gas-liquid interfacial area and convection, and the use of high thermal conductivity materials to speed up heat transfer. Cumulatively, these advancements may enable rapid, on-demand CO2 hydrate production without the use of chemical promoters. The intellectual merit of this project lies in the integration of multiple fundamental advancements to realize rapid hydrate formation in reactor configurations commonly used by the chemicals processing industry.This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

该I-Corps项目的更广泛的影响/商业潜力是开发将二氧化碳（CO2）作为CO2水合的技术的开发。二氧化碳水合物是冰状固体，由二氧化碳和水组成。稳定的二氧化碳水合在〜0̊C下形成，并从二氧化碳和水的混合物中以中等压力（〜450 psi）形成。 CO2水合物可以通过多种选择（在海床下，多年冻土，耗尽的气场）安全地隔离。该I-Corps项目的目标是基于CO2水合的碳捕获和固存（CCS）的最终商业化。工业行业，石油生产行业和公用事业之间存在许多商业化伙伴。可能的项目后情况涉及建立创业公司作为商业化工具（开发人员特定于CCS解决方案）。成功的商业化可能会带来很大的就业机会，并为将美国定位为该领域的领导者。最重要的是，它将增加技术和地球工程解决方案的投资组合来应对气候变化。该项目还将刺激气体水合物的其他应用，包括海水淡化，气体分离和氢存储。此I-Corps项目基于技术的开发，从二氧化碳和水的混合物中迅速形成CO2水合。人工合成水合物的主要技术挑战的增长率非常缓慢，气体转化速率较低。加快水合形成的最先进的技术包括使用昂贵且环保的化学启动子。 UT Austin的团队做出了一些科学发现，并开发了多种新颖的方法来加快水合物的生长，这可能会累积地加快水合物形成的速度，而水合物的形成速度比最先进的速度快。拟议技术集成的特定新颖进步包括最近发现的水合成核启动子，增强气体界面区域和便利性的技术，以及使用高导热率材料来加快热传递的速度。累积地，这些进步可能会在不使用化学启动子的情况下实现快速的，点播的二氧化碳水合产生。该项目的智力优点在于整合了多个基本进步，以实现化学处理行业常用的反应堆配置中快速水合形成的形成。该奖项反映了NSF的法定任务，并被认为是通过基金会的知识分子优点和更广泛的审查标准来通过评估来通过评估来支持的。