Читать книгу Handbook of Biomass Valorization for Industrial Applications - Группа авторов - Страница 39

Steam-Explosion pre-treatment is the mainly used pre-treatment choice. This technique needs both chemical and physical strategies to crack the surface of lignocellulosic substances. This method of volcanic pre-treatment exposes the substance to elevated pressures and temperatures for a brief period of time, after which it gradually depressurizes the system, destroying fibril framework. The degradation of fibrils through hydrolysis enhances the reachability of cellulose to the enzymes. Particle dimension is an important take-parting aspect to the performance of the method. In addition to this, comparatively huge particle sizes found to be capable of producing optimum concentrations of sugar. This is a good finding, since the lowering of the particle sizes needs more mechanical sorting of the raw material. Temperatures between 190 and 270 °C were applied with time intervals of 10 and 1 min, correspondingly. The determining factor for the temperature/time relationship [76, 77] will be the preparatory material and particle sizes.