瞬时弹射式蒸汽爆破处理生物质的能量模型及能耗理论分析

Energy Model and Energy Consumption Analysis of Biomass Pretreatment by Instant Catapult Steam Explosion

在生物质资源化利用领域,蒸汽爆破技术是打破生物质抗降解屏障、实现生物炼制的关键技术途径,具有清洁、短时和高效的显著特点。针对生物质蒸汽爆破过程中能量消耗和能量平衡问题,基于传热学基本原理,对生物质蒸汽爆破过程中的能量组成和转化进行了分析,建立了生物质蒸汽爆破能耗模型,阐明了蒸汽爆破过程中蒸汽热能转换机械功,并利用能量模型对影响生物质蒸汽爆破预处理能耗因素进行能耗分析。结果表明:该模型可以较为准确地反映物质蒸汽爆破过程中的热能利用和转化过程,能够定量分析生物质蒸汽爆破过程中物料含水率、蒸汽爆破强度和装料量的能耗变化规律。研究结果为蒸汽爆破技术的生物液体燃料或生物炼制产业化应用提供了理论参考。

In the field of biomass resource utilization,the steam explosion technology serves as the key technology to break the anti-degradation barrier of biomass and realize biorefineries,which is characteristic of clean,short-term and high efficiency.In this paper,the energy composition and transformation in the process of biomass steam explosion was analyzed using the basic principle of heat transfer,and an energy consumption model of biomass steam explosion was established to clarify the mechanical work of steam heat energy conversion and verify the consumption factors affecting the pretreatment enery of biomass steam explosion.It was shown that in the process of biomass steam explosion,the established model can not only accurately reflect the heat energy utilization and transformation process,but also quantitatively analyze the change law of material moisture content,steam explosion intensity and energy consumption of the charging amount.This study provides a theoretical reference for the steam explosion technology’s application into the industrialization of biofuel or biorefineries.