厨余垃圾热转化利用技术进展OA北大核心

To address the shortages of traditional fossil fuel reserves and energy,it is necessary to further develop the utilization methods of renewable energy.Kitchen waste,as common organic solid waste in residential life,belongs to the category of renewable energy.Due to its high organic matter content and susceptibility to spoilage and bacterial growth,human have focused more on energy utilization of kitchen waste.Thermal conversion technologies are suitable as resource utilization methods for kitchen waste due to their short cycle and high efficiency,including incineration power generation technology,hydrothermal liquefaction technology,hydrothermal carbonization technology,traditional gasification technology and supercritical water gasification technology.Incineration power generation technology can quickly reduce kitchen waste and achieve the conversion and utilization of organic waste to generate power.Hydrothermal liquefaction technology and hydrothermal carbonization technology are environmentally friendly and have significant advantages in preparing high-quality fuels,respectively achieving efficient conversion of kitchen waste to bio oil and hydrothermal carbon.Traditional gasification technology and supercritical water gasification technology can convert kitchen waste to combustible synthesis gas,and they are relatively mature.Especially,supercritical water gasification technology has great advantages in the preparation of clean energy hydrogen from kitchen waste.Combined with the current status of technological development,the limitations of various thermal conversion technologies were pointed out and relevant suggestions were put forward.The future development directions of various technologies were discussed,to provide references for achieving energy utilization of large-scale kitchen waste.