基于碳足迹核算的电站锅炉减碳路径研究

Research on Carbon Reduction Path of Power Plant Boiler Based on Carbon Footprint Accounting

二氧化碳排放导致的全球变暖问题日益严峻,重点领域节能降碳升级改造不容忽视。电站锅炉作为我国火力发电的主设备之一,拥有着庞大产品系统体系的同时也是重要碳排放领域之一,如何有效降低其碳排放量,寻找产品绿色减碳路径是电站锅炉制造企业关注的重点问题。本研究利用生命周期评价(LCA)方法,核算了电站锅炉产品原辅料获取、原辅料运输、产品部件生产制造等生命周期过程的碳排放,研究结果表明某台典型电站锅炉产品从“摇篮到大门”的碳足迹为10.07万tCO_(2)e,其中原辅料获取阶段碳排放占比最多,为70.74%;产品部件生产制造过程次之,碳排放占比为25.75%,原辅料运输阶段的碳排放占比相对最小,为3.51%。结合各阶段碳排放水平以及锅炉产品生产制造过程中的实际情况,提出了强化电站锅炉产品的绿色设计、重视电站锅炉产品的节能生产、重视电站锅炉产品的绿色供应链建设、重视电站锅炉相关企业的数字化管理等多维度减碳路径,进一步促进电站锅炉的绿色低碳可持续发展。

The problem of global warming caused by carbon dioxide emissions is becoming increasingly serious,and the upgrading of energy conservation and carbon reduction in key areas cannot be ignored.As one of the main equipment of thermal power generation in China,power plant boiler has a huge product system and is also one of the important carbon emission fields.How to effectively reduce its carbon emission and find a green path for product carbon reduction is the key issue that power plant boiler manufacturers pay attention to.In this study,the life cycle assessment(LCA)method was used to calculate the carbon emissions of raw materials acquisition,transportation of raw materials,production and manufacturing of product components and other life cycle processes of power plant boiler products.The research results showed that the carbon footprint of a typical power plant boiler product from"cradle to gate"was 100,700 tCO_(2)e,among which the carbon emissions at the raw materials acquisition stage accounted for the largest proportion.Is 70.74%;The production process of product parts is second,accounting for 25.75% of carbon emissions,and the carbon emissions in the transportation stage of raw materials are relatively the smallest,accounting for 3.51%.Combined with the carbon emission level of each stage and the actual situation in the production and manufacturing process of boiler products,a multi-dimensional carbon reduction path such as strengthening the green design of power plant boiler products,attaching importance to the energy-saving production of power plant boiler products,attaching importance to the green supply chain construction of power plant boiler products,and attaching importance to the digital management of power plant boiler related enterprises is proposed.Further promote the green,low-carbon and sustainable development of power station boilers.