由于能源價(jià)格上漲和燃料化石枯竭等原因,各國(guó)正轉(zhuǎn)向使用可再生和可持續(xù)能源。目前有許多可替代能源新技術(shù),而生物質(zhì)氣化是其中一種重要的技術(shù)。生物質(zhì)氣化制氫被認(rèn)為是一種理想的可再生能源,在未來(lái)的氫能源經(jīng)濟(jì)中將占有舉足輕重的地位。生物質(zhì)中木質(zhì)素和纖維素具有不同的化學(xué)反應(yīng)活性,因此不同組分的生物質(zhì)在氣化過(guò)程具有不同的反應(yīng)特性。氣化過(guò)程中伴隨產(chǎn)生二氧化碳,二氧化碳是一種導(dǎo)致全球變暖的溫室氣體。在氣化過(guò)程中加入固碳吸收劑（如CaO）,二氧化碳可被固體吸收劑吸收,生產(chǎn)富氫合成氣并捕集二氧化碳。論文開(kāi)展生物質(zhì)不同組分（纖維素和木質(zhì)素）對(duì)氣化產(chǎn)物以及CaO催化劑性能的影響,并對(duì)生物質(zhì)富氫氣化過(guò)程中鈣基吸附劑的性能進(jìn)行改性和評(píng)價(jià),對(duì)生物質(zhì)清潔利用具有重要意義。論文基于鈣基二氧化碳吸收劑,研究了生物質(zhì)富氫氣化特性;根據(jù)生物質(zhì)富含木質(zhì)素和纖維素的特點(diǎn),研究了纖維素、木質(zhì)素、模擬生物質(zhì)以及富含纖維素和富含木質(zhì)素的實(shí)際生物質(zhì)在鈣基吸收劑條件下的氣化特性和氣體產(chǎn)物分布規(guī)律;明確了木質(zhì)素和纖維素對(duì)CaO催化活性的影響規(guī)律;研究了ZrO₂和CeO₂改性Fe/CaO對(duì)生物質(zhì)富氫氣化... 

【文章來(lái)源】：東南大學(xué)江蘇省 211工程院校 985工程院校 教育部直屬院校

【文章頁(yè)數(shù)】：97 頁(yè)

【學(xué)位級(jí)別】：博士

【文章目錄】：
摘要
Abstract
Chapter1 Introduction
    1.1 Introduction
    1.2 Literature review
        1.2.1 Properties of biomass
        1.2.2 Composition of biomass
        1.2.3 Biomass conversion to energy
        1.2.4 Gasification principle
        1.2.5 Gasifier Operating Conditions
        1.2.6 Importance of research work
    1.3 Research Questions
    1.4 Objectives of the research
    1.5 Outlines of the study
Chapter2 Elucidation of syngas composition from catalytic steam gasification
    2.1 Introduction
    2.2 Experimental setup
        2.2.1 Preparations of materials and catalyst
        2.2.2 Gasification apparatus and procedure
    2.3 Results and discussion
        2.3.1 Effect of CaO loading ratio on steam gasification of cellulose and lignin
        2.3.2 Effect of temperature on steam gasification of cellulose and lignin
        2.3.3 Comparative analysis of cellulose and lignin gasification
        2.3.4 Gasification of real and simulated biomass
    2.4 Chapter summary
Chapter3 Effects of cellulose and lignin on products of calcium oxide（CaO） in biomass gasification
    3.1 Introduction
    3.2 Material and Methods
        3.2.1 Preparations of materials and catalyst
        3.2.2 Gasification procedure
    3.3 Results and discussion
        3.3.1 Gasification of cellulose and lignin
        3.3.2 Gasification of actual biomass in the presence of CaO
    3.4 Characterization of spent catalysts
        3.4.1 Pore volume and specific surface
        3.4.2 TG characterization of the coke
        3.4.3 EDX and XRD analysis
    3.5 Chapter summary
Chapter4 Effects of Fe/ZrO2 and Fe/CeO2 addition on CaO catalyst
    4.1 Introduction
    4.2 Materials and methods
        4.2.1 Materials
        4.2.2 Preparation of Catalysts
        4.2.3 Experimental setup
    4.3 Results and discussion
        4.3.1 Characterization of catalysts
        4.3.2 Effect of elements loading content
    4.4 Characterization of gasified residues
        4.4.1 SEM
        4.4.2 EDX
        4.4.3 TG and DTG analysis of coke
        4.4.4 XRD
    4.5 Cyclic stability of the Zr-Fe/CaO catalyst
    4.6 Chapter summary
Chapter5 Chemometric modelling on element compositions and product distributions of cellulose and lignin
    5.1 Introduction
    5.2 Materials and methods
        5.2.1 Feedstocks
        5.2.2 Data collection
        5.2.3 Statistical analysis
    5.3 Results and discussion
        5.3.1 Correlation between feedstocks based on elemental composition
        5.3.2 Correlation between feedstocks based on product composition
        5.3.3 Elemental composition and chemical structure of components
    5.4 Chapter summary
Chapter6 Conclusion and Recommendations
    6.1 Conclusion
    6.2 Recommendation
Acknowledgement
Appendix A Element compositions of selected samples
Appendix B Syngas composition and product distribution
Appendix C List of papers
References


【參考文獻(xiàn)】：
期刊論文
[1]Characteristics of reactivity and structures of palm kernel shell （PKS） biochar during CO2/H2O mixture gasification[J]. Guozhang Chang,Ximin Yan,Pengyu Qi,Mei An,Xiude Hu,Qingjie Guo.  Chinese Journal of Chemical Engineering. 2018(10)
[2]Biomass gasification technology: The state of the art overview[J]. Antonio Molino,Simeone Chianese,Dino Musmarra.  Journal of Energy Chemistry. 2016(01)



本文編號(hào)：3071823