Sustainability study for wheat straw torrefaction technology

Abstract

The aim of this article is to examine the torrefaction production technology placed in two power plant environment (Rankine-Clausius, and Organic Rankine-Clausius circular procedures). The torrefaction is a heat treatment process at 280 – 300 °C obturated from oxygen, this heat treatment effectively changing the structure of the material, and the feedstock’s heating value improves. Our study is restricted is wheat pallet because we conducted the laboratory experiments with material. In Hungary the agricultural industry produces raw materials in big amounts (mainly combustibles that is energetically renewables) which are at the moment, mixed with nitrogen-based fertilizers and biodegradable anaerobe bacteria ploughed back into the tillage as a form of nutrient supply. It takes 9 months to become nutriment from this inorganic material. The object of our study is the key equipment of a production technology which continuously works, double-jacketed, and can be subjected to vacuuming. This equipment is a cylindrical furnace in which the torrefaction is realized.