共查询到17条相似文献,搜索用时 125 毫秒
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天然气是储量最丰富的能源之一,但限于勘探、运输、配置等问题,一直以来人们对它的利用都不是很合理.能源危机和环境问题推动了生物质能源的开发利用,甲烷氧化菌是以甲烷为唯一碳源和能源进行生长的一类细菌,具有炼制生物柴油的潜力.综述了近几年甲烷氧化菌在高密度培养及深加工炼制生物柴油的研究进展,着重分析了高密度培养和生物柴油炼制过程中在传质与反应器设计、菌种培养、脂质提取、加氢脱氧四个过程中面临的技术难点,给出了解决方法并展望了其在未来的发展. 相似文献
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简要介绍了转基因产品的发展历程、优缺点以及对转基因产品进行检测分析的迫切性,着重综述了近期基于DNA、蛋白质、生物传感器以及联用技术检测转基因产品的分析方法,最后对转基因产品的分析方法进行了展望. 相似文献
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生命相关过程伴随着极其复杂的化学和物理过程,包含着物质变化和能量转换,其中部分能量不可避免地会以热的形式表现出来。用微量热技术和热动力学方法,研究复杂生命体系和相关反应的热动力学过程,可宏观地、本质地反映生命相关过程的内在规律。本文综述了生物量热学方法和技术在生命科学中的应用,介绍了生物量热技术在生态系统、生物组织和器官、细胞水平、亚细胞水平和分子层面等不同生物层次和结构水平上的研究现状和进展。 相似文献
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Yansong Liu Yunhan Tang Haiyan Gao Wenming Zhang Yujia Jiang Fengxue Xin Min Jiang 《Molecules (Basel, Switzerland)》2021,26(17)
Lignocellulose is a kind of renewable bioresource containing abundant polysaccharides, which can be used for biochemicals and biofuels production. However, the complex structure hinders the final efficiency of lignocellulosic biorefinery. This review comprehensively summarizes the hydrolases and typical microorganisms for lignocellulosic degradation. Moreover, the commonly used bioprocesses for lignocellulosic biorefinery are also discussed, including separated hydrolysis and fermentation, simultaneous saccharification and fermentation and consolidated bioprocessing. Among these methods, construction of microbial co-culturing systems via consolidated bioprocessing is regarded as a potential strategy to efficiently produce biochemicals and biofuels, providing theoretical direction for constructing efficient and stable biorefinery process system in the future. 相似文献
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Ansarinasab Hojat Mehrpooya Mehdi Sadeghzadeh Milad 《Journal of Thermal Analysis and Calorimetry》2021,145(3):1053-1073
Journal of Thermal Analysis and Calorimetry - In this research, a biorefinery plant is proposed to generate biofuel through fast pyrolysis and gasification. The proposed biorefinery comprises... 相似文献
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本文首先介绍了国外以玉米、废弃生物质为原料发展生物炼油厂的设想;然后根据我国国情和已有技术基础,设想了以甜高梁、木薯为原料生产乙醇车用汽油和化工产品的生物炼油厂,以及以菜籽油、棉籽油为原料生产生物柴油和化工产品的生物炼油厂;最后探讨了遇到的问题和采取的对策。 相似文献
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En-Ze Min 《Frontiers of Chemistry in China》2006,1(3):241-246
Biorefinery based on biomass resources is an important approach for the oil refining and petrochemical industry to achieve
sustainable development. Two types of biorefinery suitable for China’s biomass resources are presented in this paper. With
sorgo and cassava as raw material, an ethanol-biorefinery for the production of ethanol-gasoline and chemicals is explored,
and with rape seed and cotton seed oil as raw material, a biodiesel-biorefinery for the production of biodiesel and chemicals
is also explored. The associated problems and measures taken are discussed in the end. 相似文献
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Using neutron activation the nitrogen and fluorine contents in fossile bones could be measured relative to main constituents
of the inorganic bone material (phosphorus and calcium). By determining the ratio of N and F a relative and absolute age determination
was possible. The method is relatively simple, quick, cheap and nondestructive. 相似文献
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The development of biorefineries plays an important role for the solution of future global challenges such as the supply for an increasing world population, the finite nature of fossil resources or environmental and climate protection. Biorefineries guarantee high efficiency and sustainability in material and energetic use of biomass by integrating different processes. However, in order for biorefineries to become commercially feasible, significant further research is required. This concerns the integration of different measures for coherent technological concepts, the upscaling from a laboratory scale to an industrial scale, raw material supply, the optimization of methods and products of the primary‐ and secondary refinery including the principles of sustainability. The German Roadmap Biorefineries determines systematically the current status of the various biorefinery concepts, analyses them regarding economical and ecological aspects and contains concrete recommendations for research and development. The Roadmap gives a comprehensive overview of a range of technologies and the ways how they can be realized. The Roadmap's aim is to develop and to operate biorefinery concepts until 2030 that are highly efficient, in line with the future requirements and ecologically advan‐tageous. 相似文献
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Dr. Maria Elena Cucciolito Prof. Martino Di Serio Dr. Roberto Esposito Dr. Massimo Melchiorre Prof. Francesco Ruffo Prof. Vincenzo Russo Prof. Riccardo Tesser Dr. Rosa Turco Dr. Rosa Vitiello 《欧洲无机化学杂志》2023,26(17):e202200783
The present review articles the most recent efforts, made in the Department of Chemical Sciences of the University of Naples Federico II, in the catalytic treatment of biomasses derived from vegetable oils. The review is focused on several technologies aimed at the production of either biofuels or valuable chemicals: (i) biodiesel production; (ii) esterification to obtain high-added value products; (iii) epoxidation of vegetable oils; (iv) glycerol ketalization; (v) oxidative cleavage of unsaturated fatty acids. The results are critically summarized to highlight the scientific activities and the main results in the field of biorefinery concept. 相似文献