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生質能捕碳及固碳再利用系統整合技術開發(1/2)
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類別：研究分析報告
出版品名稱：生質能捕碳及固碳再利用系統整合技術開發(1/2)
研究人員：左峻德,許中駿,呂凱尼,呂依庭
出版年月：202406
頁數：13
關鍵字：生質能,碳捕存&再利用,生命週期評估,Bio-mass energy, carbon capture & utilization, life cycle assessment
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內容摘要
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生質能結合碳捕存再利用(Bio-Energy Carbon Capture Utilization and Storage, BECCUS)為淨零碳排重要路徑之一。因微藻具備光合作用效率大、固碳效率高、生長週期短、環境耐受力強等優勢，以微藻進行生物性固碳，並整合藻體產製沼氣與碳捕獲利用技術，可獲得降低藻體應用能量消耗及生質能碳捕獲製程碳排之效益。
本計畫以生質物燃燒後捕獲之二氧化碳為碳源，主要發展重點包括二氧化碳捕獲技術以及具減碳效益之藻體養殖、固碳、再利用技術。相關研究成果如下：(1)二氧化碳捕獲材料，在15% CO2條件下，百克製程規模碳捕獲劑之最佳CO2吸附量可達2.06 mmol/g，達國際水準。(2)創新基改藍綠菌產製乳酸與1,4丁二醇化學品技術，其產量分別可達0.3 g/L與0.2 g/L以上，達國際水準。(3)以綠藻藻體厭氧發酵產製沼氣，其沼氣產率779 L/kg-VS，所含甲烷可高於90%，優於一般厭氧發酵技術(甲烷濃度約60%)。(4)耐畜殖廢水微藻以成功培植1株，並以初步開始進行噸級槽養殖測試，具備環保、負碳等效益。(5)海水養殖魚類廢水進行蘆筍藻養殖，廢水中化學需氧量、NH4+、CO2移除率分別達67%、92%、96%，具備顯著經濟、負碳效益。(6)本計畫全生命週期評估方面，以國內生質料源燃燒汽電共生鍋爐為例，全年操作共計350,400噸CO2e排放。以「技術指標達TRL4-5」放大百倍製程，每年可減碳10,400噸CO2e，減碳效益為3%。
In this project, the captured carbon dioxide from biomass burning as the carbon source. The project aims to investigate including CO2 capture technology and algae cultivation, carbon sequestration, and CO2 utilization technologies that have carbon reduction benefits. These results summarized as follows: (1) CO2 capture capacity of material for a hundred-gram process is2.06 mmol/g under 15% CO2 conditions, meeting international level.(2) Innovative genetically modified cyanobacteria technology for producing lactic acid and 1,4-butanediol chemicals yields over 0.3 g/L and 0.2 g/L, respectively, meeting international level.(3) Anaerobic fermentation of green algae biomass produces biogas at a rate of 779 L/kg-VS, with methane content exceeding 90%, surpassing typical anaerobic fermentation technology (methane concentration around 60%).(4) Successfully cultivated a strain of microalgae tolerant to livestock wastewater, initiating ton-scale tank cultivation trials, offering environmental and carbon-negative benefits.(5) Cultivating “asparagopsis taxiformis (delile) trevisan” using wastewater from marine aquaculture achieves removal rates of chemical oxygen demand(COD), NH4+, and CO2 at 67%, 92%, and 96%, respectively, demonstrating significant economic and carbon-negative benefits.(6) In terms of life cycle assessment for this project, taking domestically sourced biomass combustion cogeneration boilers as an example, the annual total CO2e emissions from operation amount to 350,400 tons. Scaling up the process by a factor of 100 with technology reaching TRL4-5, it can reduce carbon emissions by 10,400 tons of CO2e per year, with a carbon reduction benefit of 3%.
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目錄
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一、前言 1
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二、研究目的 1
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三、文獻探討 2
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四、研究方法 2
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五、結果與討論 3
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六、結論與建議 8
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七、參考文獻 9
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圖目錄
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表目錄
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備註
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