Combustion of torrefied pellets of furniture work dusts as blends with lignite

In this study, torrefaction of pellets formed from furniture work dusts collected as a part of space cleaning actions in the industry have been examined. Burning behaviour of torrefied dusts and lignite blends was studied. Torrefaction experiments were done under nitrogen atmosphere for one hour at temperatures of 220, 260 and 300°C which corresponded to light, mild and severe torrefaction, respectively. Combustion of blend pellets prepared by adding lignite in specific ratios to powders of torrefied pellets was carried out at 700°C initial temperature using a vertical furnace system through which air was flowing in natural convection. Ignition times of blend pellets were affected from volatile matter and moisture contents. Volatile matter combustion rates were lower than those of raw waste and accordingly, combustion times were higher. However, no relation between volatile matter combustion rates and times was observed. Blending raw or torrefied furniture work dusts with lignite have significantly influenced volatile matter and carbon combustion periods. There was no relation between carbon combustion rates and times. It was concluded that blend pellets of mild or severe torrefaction products of furniture work dusts and lignite behaved similarly to lignite during combustion.

Gas phase synthesis of amorphous silicon nitride nanoparticles for high-energy LIBs

We introduce a highly homogenous phase design of Si with N by scalable gas phase synthesis using a specially customized vertical furnace, which tackles the intrinsic challenges of Si anodes.

Төв аймгийн бор-уулын уулын перлитийн дулааны хөөлтийн горим

The perlit from Bor-Uul deposit has been studied. We produced expended perlite by a heat expansion principle using a vertical stationary furnace at different conditions. The result showed that the perlite’s expansion significantly depends on the temperature ( 1050-12500С), time of the heating (20-240sec) and the particle size. We have the first time obtained highly expanded perlite with an expansion coefficient equal to 964 be using the vertical furnace at our laboratory.