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新型二氧化碳捕捉工作組報告(2011)novel co2 capture task force report(2011) 新型二氧化碳捕捉工作組報告(2011)novel co2 capture task force report(2011)

新型二氧化碳捕捉工作組報告(2011)novel co2 capture task force report(2011)

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  • 更新時(shí)間：2021-09-09
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需要開(kāi)發(fā)一系列低碳技術(shù)，以實(shí)現政府的二氧化碳排放目標。澳大利亞的電能很大一部分是用煤產(chǎn)生的，天然氣的使用也在增加。澳大利亞正在廣泛研究這些化石來(lái)源的二氧化碳地質(zhì)封存。本研究由發(fā)起人BCIA1、ANLERC&D2和全球CCS研究所3召集，旨在通過(guò)替代地質(zhì)封存的方式研究二氧化碳的捕獲和封存。特別工作組審議的新型二氧化碳捕獲技術(shù)分為生物固存和礦物固存兩個(gè)領(lǐng)域，其定義如下：生物固存是指通過(guò)生物過(guò)程捕獲和儲存大氣中的二氧化碳。這可能是通過(guò)增加光合作用（通過(guò)重新造林或減少去造林）；通過(guò)增強農業(yè)中的土壤碳捕集；或者通過(guò)利用藻類(lèi)生物固存從工業(yè)過(guò)程中吸收二氧化碳。礦物固存，或礦物碳化，涉及二氧化碳與常見(jiàn)的天然巖石中的金屬氧化物的反應。這一過(guò)程模擬自然風(fēng)化現象，并產(chǎn)生在地質(zhì)時(shí)間尺度上穩定的天然碳酸鹽產(chǎn)物。工作隊研究于2011年1月開(kāi)始，2011年8月結束。第一項活動(dòng)包括召集來(lái)自工業(yè)界、大學(xué)和CSIRO的獨立專(zhuān)家參加一個(gè)研討會(huì )，在研討會(huì )上制定了一項研究行動(dòng)計劃。講習班的一部分是作為行動(dòng)計劃的一個(gè)關(guān)鍵組成部分，提出了一系列有待回答的“假設”。

A portfolio of low-carbon technologies are required to be developed to reach Government targets for CO2 emissions. A large proportion of Australia’s electrical energy is generated using coal and there is an increasing use of natural gas. Geological sequestration of CO2 from these fossil sources is being extensively studied in Australia. The present study was convened by the sponsors BCIA1, ANLECR&D2 and the Global CCS Institute3 to investigate CO2 capture and storage by means alternative to geological storage. The technologies for novel CO2 capture considered by the Task Force fall into the areas of bio?sequestration and mineral sequestration, given by the following definitions: Bio-sequestration is the capture and storage of atmospheric CO2 by biological processes. This may be by increased photosynthesis (through re-forestation, or decreased de-forestation); by enhanced soil carbon trapping in agriculture; or by the use of algal bio-sequestration to absorb CO2 from industrial processes. Mineral sequestration, or mineral carbonation, involves reaction of CO2 with metal oxides that are present in common, naturally occurring rocks. This process mimics natural weathering phenomena, and results in natural carbonate products that are stable on a geological time scale. The Task Force study commenced in January 2011 and concluded in August 2011. The first activity involved convening independent experts from industry, universities and the CSIRO to a workshop where an action plan for the study was developed. As part of the workshop, a series of “hypotheses” to be answered were developed as a key component of the action plan.

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