Textile production has received considerable attention owing to its significance in production value,the complexity of its manufacturing processes and the extensive reach of its supply chains.However,textile industry ...Textile production has received considerable attention owing to its significance in production value,the complexity of its manufacturing processes and the extensive reach of its supply chains.However,textile industry consumes substantial energy and materials and emits greenhouse gases that severely harm the environment.In addressing this challenge,the concept of sustainable production offers crucial guidance for the sustainable development of the textile industry.Low-carbon manufacturing technologies provide robust technical support for the textile industry to transition to a low-carbon model by optimizing production processes,enhancing energy efficiency and minimizing material waste.Consequently,low-carbon manufacturing technologies have gradually been implemented in sustainable textile production scenarios.However,while research on low-carbon manufacturing technologies for textile production has advanced,these studies predominantly concentrate on theoretical methods,with relatively limited exploration of practical applications.To address this gap,a thorough overview of carbon emission management methods and tools in textile production,as well as the characteristics and influencing factors of carbon emissions in key textile manufacturing processes is presented to identify common issues.Additionally,two new concepts,carbon knowledge graph and carbon traceability,are introduced,offering strategic recommendations and application directions for the low-carbon development of sustainable textile production.Beginning with seven key aspects of sustainable textile production,the characteristics of carbon emissions and their influencing factors in key textile manufacturing process are systematically summarized.The aim is to provide guidance and optimization strategies for future emission reduction efforts by exploring the carbon emission situations and influencing factors at each stage.Furthermore,the potential and challenges of carbon knowledge graph technology are summarized in achieving carbon traceability,and several research ideas and suggestions are proposed.展开更多
以高湿污泥和玉米秸秆为原料,利用热重分析仪分析了2种物质掺混后的热解特性,并在固定床反应器中研究了污泥/秸秆共气化特性,考察了污泥与玉米秸秆不同掺混质量比下合成气的变化情况。结果表明,污泥和秸秆掺混物比污泥表现出更优的热解...以高湿污泥和玉米秸秆为原料,利用热重分析仪分析了2种物质掺混后的热解特性,并在固定床反应器中研究了污泥/秸秆共气化特性,考察了污泥与玉米秸秆不同掺混质量比下合成气的变化情况。结果表明,污泥和秸秆掺混物比污泥表现出更优的热解特性。当污泥和秸秆掺混质量比为4∶6时,制氢效果最佳,H_(2)和CO的气体体积分数分别为49.56%和27.42%,H_(2)的产量为0.61 L/g。在此条件下,综合比较了共气化和污泥/秸秆其他处置方式所产生的碳排放量,共气化可实现负碳排放,碳减排量为1 812.17 kg CO_(2)/(t原料),表明污泥与秸秆共气化的碳减排潜力巨大,对环境的负面影响小,是一项可同时实现污泥/玉米秸秆资源化利用、高效气化制氢和节能减排等多重目标的制氢技术。展开更多
油页岩资源储量丰富,然而与常规油气相比,页岩油气开发成本较高。在应对双碳战略的背景下,迫切需要探索油页岩的高值化低碳利用新途径。目前的油页岩加工技术可能需要将氢气用作原料,或者仅将其作为少量副产品。为摆脱以炼油为目标的传...油页岩资源储量丰富,然而与常规油气相比,页岩油气开发成本较高。在应对双碳战略的背景下,迫切需要探索油页岩的高值化低碳利用新途径。目前的油页岩加工技术可能需要将氢气用作原料,或者仅将其作为少量副产品。为摆脱以炼油为目标的传统方法,提出油页岩全制氢的技术理念,设计页岩油和干馏气全部用于生产氢气的完整工艺路线,实现氢气的高产率,并开展分析评价。油页岩制氢工艺路线设计了6个模块,使氢气成为唯一的能源产品。在实现总脱碳率>95%的前提下,油页岩制氢的效益为每t油页岩可生产33.47 kg H_(2)。相比炼油工艺,油页岩制氢的投资利用率提升8.48%,投资回收期减少1.6 a。相比其他制氢方式,油页岩制氢具有一定成本优势和规模优势。通过以氢气生产为目的的油页岩开发创新,为其高值化低碳利用和丰富氢气供应链提供了技术选择。展开更多
基金Natural Science Foundation of Shanghai,China (No. 21ZR1400800)。
文摘Textile production has received considerable attention owing to its significance in production value,the complexity of its manufacturing processes and the extensive reach of its supply chains.However,textile industry consumes substantial energy and materials and emits greenhouse gases that severely harm the environment.In addressing this challenge,the concept of sustainable production offers crucial guidance for the sustainable development of the textile industry.Low-carbon manufacturing technologies provide robust technical support for the textile industry to transition to a low-carbon model by optimizing production processes,enhancing energy efficiency and minimizing material waste.Consequently,low-carbon manufacturing technologies have gradually been implemented in sustainable textile production scenarios.However,while research on low-carbon manufacturing technologies for textile production has advanced,these studies predominantly concentrate on theoretical methods,with relatively limited exploration of practical applications.To address this gap,a thorough overview of carbon emission management methods and tools in textile production,as well as the characteristics and influencing factors of carbon emissions in key textile manufacturing processes is presented to identify common issues.Additionally,two new concepts,carbon knowledge graph and carbon traceability,are introduced,offering strategic recommendations and application directions for the low-carbon development of sustainable textile production.Beginning with seven key aspects of sustainable textile production,the characteristics of carbon emissions and their influencing factors in key textile manufacturing process are systematically summarized.The aim is to provide guidance and optimization strategies for future emission reduction efforts by exploring the carbon emission situations and influencing factors at each stage.Furthermore,the potential and challenges of carbon knowledge graph technology are summarized in achieving carbon traceability,and several research ideas and suggestions are proposed.
文摘以高湿污泥和玉米秸秆为原料,利用热重分析仪分析了2种物质掺混后的热解特性,并在固定床反应器中研究了污泥/秸秆共气化特性,考察了污泥与玉米秸秆不同掺混质量比下合成气的变化情况。结果表明,污泥和秸秆掺混物比污泥表现出更优的热解特性。当污泥和秸秆掺混质量比为4∶6时,制氢效果最佳,H_(2)和CO的气体体积分数分别为49.56%和27.42%,H_(2)的产量为0.61 L/g。在此条件下,综合比较了共气化和污泥/秸秆其他处置方式所产生的碳排放量,共气化可实现负碳排放,碳减排量为1 812.17 kg CO_(2)/(t原料),表明污泥与秸秆共气化的碳减排潜力巨大,对环境的负面影响小,是一项可同时实现污泥/玉米秸秆资源化利用、高效气化制氢和节能减排等多重目标的制氢技术。
文摘油页岩资源储量丰富,然而与常规油气相比,页岩油气开发成本较高。在应对双碳战略的背景下,迫切需要探索油页岩的高值化低碳利用新途径。目前的油页岩加工技术可能需要将氢气用作原料,或者仅将其作为少量副产品。为摆脱以炼油为目标的传统方法,提出油页岩全制氢的技术理念,设计页岩油和干馏气全部用于生产氢气的完整工艺路线,实现氢气的高产率,并开展分析评价。油页岩制氢工艺路线设计了6个模块,使氢气成为唯一的能源产品。在实现总脱碳率>95%的前提下,油页岩制氢的效益为每t油页岩可生产33.47 kg H_(2)。相比炼油工艺,油页岩制氢的投资利用率提升8.48%,投资回收期减少1.6 a。相比其他制氢方式,油页岩制氢具有一定成本优势和规模优势。通过以氢气生产为目的的油页岩开发创新,为其高值化低碳利用和丰富氢气供应链提供了技术选择。
