Engineering toolboxes to verify the fate mechanism and permanence of drawndown carbon
验证碳消耗的命运机制和持久性的工程工具箱
基本信息
- 批准号:RGPIN-2022-04245
- 负责人:
- 金额:$ 2.4万
- 依托单位:
- 依托单位国家:加拿大
- 项目类别:Discovery Grants Program - Individual
- 财政年份:2022
- 资助国家:加拿大
- 起止时间:2022-01-01 至 2023-12-31
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
Anthropogenic carbon dioxide emissions are the largest contributor to the Earth's climate change emergency. Environmental assessments show that to mitigate irreversible climate change and to meet the UNFCC Paris Agreement, a more than 95% reduction in the global carbon emissions from the 2018 level is required. Emissions reduction is insufficient to achieve this, hence negative emissions technologies, which result in what is now known as `carbon drawdown', must be widely adopted to reduce atmospheric CO2 levels directly. With such approaches being actively developed and field tested, there is urgent need to develop better engineering toolboxes for determining the fate mechanism and permanence of sequestered and stored carbon. There are two forms of soil carbon sequestration that can play a role in climate change mitigation: inorganic and organic carbon. Scientific evidence has shown that not only the widely researched meta-stable soil organic matter can trap atmospheric CO2, but also the geologically stable pedogenic carbonates. Now, it is crucial to tackle another important knowledge gap, which is on how soil organic carbon (SOC) can be readily classified into more stable and less stable fractions, and how this is related to the long-term storage and transport of carbon in soils and subsoils. The goal of this research program is to develop novel experimental (characterization) and numerical (reactive transport) toolboxes to accurately estimate SOC sequestration rates, amounts, stability, and speciation. Concepts from Engineering, Earth Sciences, Agriculture, and Economics will be leveraged to develop tools for monitoring, quantifying, and predicting carbon sequestration in soils. In the short term, advances in photoelectrocatalytic sensors and advanced high-pressure thermogravimetric analysis techniques will be leveraged to make use of photocatalysis, gasification, pyrolysis and thermal oxidation for the purpose of quantitatively classifying SOC fractions that include labile (less stable), humus, and resistant (more stable). Thermodynamic, kinetic and sorption data will be collected and generated to enable conventional geochemical modeling of soil carbon transport to be able to account for a family of SOC compounds of different stabilities that age or degrade under variable soil, crop and climate conditions. For the long term, this research aims: (i) to have direct policy implications, particularly as it pertains to verifiable and certifiable carbon credits for long-lasting (10 to 100 years, or ideally more) carbon removal; and (ii) to equip carbon sequestration verifiers with superior methods to determine the permanence of all forms of newly sequestered carbon in soils.
人为二氧化碳排放是造成地球气候变化紧急情况的最大因素。环境评估表明,要减缓不可逆转的气候变化,并满足《巴黎气候变化巴黎》的要求,全球碳排放量需要在2018年的基础上减少95%以上。减少排放量不足以实现这一目标,因此,必须广泛采用负排放技术,即现在所称的“碳排放”技术,以直接减少大气中的二氧化碳水平。随着这些方法的积极开发和实地测试,迫切需要开发更好的工程工具箱,以确定螯合和储存的碳的归宿机制和持久性。有两种形式的土壤固碳可以在减缓气候变化方面发挥作用:无机碳和有机碳。科学证据表明,不仅广泛研究的亚稳定土壤有机质可以捕获大气CO2,而且地质稳定的成土碳酸盐也可以捕获大气CO2。现在,解决另一个重要的知识缺口至关重要,即土壤有机碳(SOC)如何容易地分为更稳定和不稳定的部分,以及这与土壤和底土中碳的长期储存和运输如何相关。这项研究计划的目标是开发新的实验(表征)和数值(反应性运输)工具箱,以准确估计SOC封存率,数量,稳定性和物种形成。工程,地球科学,农业和经济学的概念将被用来开发监测,量化和预测土壤中碳固存的工具。在短期内,光电催化传感器和先进的高压热重分析技术的进步将被利用,以利用热解,气化,热解和热氧化的目的,定量分类SOC馏分,包括不稳定(不太稳定),腐殖质,和抗性(更稳定)。热力学,动力学和吸附数据将被收集和生成,使传统的土壤碳运输的地球化学建模,能够解释一个家庭的SOC化合物的不同的稳定性,年龄或在可变的土壤,作物和气候条件下降解。从长远来看,这项研究的目的是:(一)有直接的政策影响,特别是因为它涉及到可核查和可证明的碳信用额,长期(10至100年,或更理想)的碳去除;和(二)配备碳固存核查上级方法,以确定土壤中所有形式的新固存碳的持久性。
项目成果
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Chiang, EmilyYiWai其他文献
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{{ truncateString('Chiang, EmilyYiWai', 18)}}的其他基金
Exploiting the geochemical behaviour of inorganic residues in view of waste valorization
从废物增值的角度利用无机残留物的地球化学行为
- 批准号:
RGPIN-2015-03670 - 财政年份:2021
- 资助金额:
$ 2.4万 - 项目类别:
Discovery Grants Program - Individual
Exploiting the geochemical behaviour of inorganic residues in view of waste valorization
从废物增值的角度利用无机残留物的地球化学行为
- 批准号:
RGPIN-2015-03670 - 财政年份:2019
- 资助金额:
$ 2.4万 - 项目类别:
Discovery Grants Program - Individual
Exploiting the geochemical behaviour of inorganic residues in view of waste valorization
从废物增值的角度利用无机残留物的地球化学行为
- 批准号:
RGPIN-2015-03670 - 财政年份:2018
- 资助金额:
$ 2.4万 - 项目类别:
Discovery Grants Program - Individual
Exploiting the geochemical behaviour of inorganic residues in view of waste valorization
从废物增值的角度利用无机残留物的地球化学行为
- 批准号:
RGPIN-2015-03670 - 财政年份:2017
- 资助金额:
$ 2.4万 - 项目类别:
Discovery Grants Program - Individual
Exploiting the geochemical behaviour of inorganic residues in view of waste valorization
从废物增值的角度利用无机残留物的地球化学行为
- 批准号:
RGPIN-2015-03670 - 财政年份:2016
- 资助金额:
$ 2.4万 - 项目类别:
Discovery Grants Program - Individual
Exploiting the geochemical behaviour of inorganic residues in view of waste valorization
从废物增值的角度利用无机残留物的地球化学行为
- 批准号:
RGPIN-2015-03670 - 财政年份:2015
- 资助金额:
$ 2.4万 - 项目类别:
Discovery Grants Program - Individual
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