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EFFECT OF PROCESS PRESSURE ON THE YIELD OF PRODUCTS AND THE DURATION OF THE PROCESS OF THERMOCHEMICAL PROCESSING OF WOOD WASTE

Ruslan Safin

Abstract

The development of industry is always accompanied by an increase in the negative impact on nature. A variety of waste generated at the production stage for a long time is stored, accumulated and transformed. This is especially true for organic waste, the amount of which is steadily increasing as the industry develops. In this regard, the issue of their processing is becoming increasingly important. Currently, one of the optimal types of organic mass processing is pyrolysis. However, in most cases, thermochemical processing technologies, used at enterprises, are not capable of meeting modern requirements for energy consumption, environmental friendliness and efficiency. The article investigates the high pressure effect on the process of thermochemical treatment of wood waste. As a result of processing the obtained data, the dependences of the duration of the process of thermal decomposition of wood and the output of charcoal on the pressure in the chamber, ambient temperature, size and humidity of the pyrolized wood raw material were determined. It has been established that with an increase in the process pressure, the duration of the process of thermochemical processing of wood waste decreases, and the output of coal increases. It should also be noted that humidity has a special influence on the kinetics of the thermal decomposition site: with an increase in the initial moisture of the samples, the duration of the process increases. At the same time, coal obtained from a wet material is superior in its operational and thermal characteristics to coal obtained from a dry material.

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DOI resolver: doi.org/10.5593/sgem2019/4.1/s17.019

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