Topic
Sawdust
About: Sawdust is a research topic. Over the lifetime, 5526 publications have been published within this topic receiving 86499 citations. The topic is also known as: wood dust & hard wood dust.
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TL;DR: In this paper, the influence of reaction pressures on coliquefaction yields was investigated and the sawdust/lignite ratios on coprocessing conversion and product distribution was also investigated under the same reaction conditions.
34 citations
TL;DR: In this article, an experimental study was performed to investigate pyrolysis products, char morphology, and reactivity of char derived from large wood cylinders with various sizes (i.e. sawdust with particle size).
34 citations
TL;DR: The results have shown that NO(2) sorption properties of chars depend on the conditions of pyrolysis and the Conditions of adsorption, which is related to nitrogen compounds of low stability in high temperatures.
34 citations
TL;DR: In this paper, an inexpensive cellulose-based adsorbents were prepared by the reaction of cross-linked polyethylenimine (CPEI) with an agricultural waste (i.e., wood sawdust).
Abstract: Inexpensive and efficient cellulose-based adsorbents were prepared by the reaction of cross-linked polyethylenimine (CPEI) with an agricultural waste (i.e., wood sawdust). Factors affecting the extent of amination, such a CPEI concentration, pH, time, and temperature of reaction as well as sawdust particle size range, were studied. The obtained adsorbents were found to be highly effective for removal of anionic dyestuffs (i.e., direct, reactive, and acid dyes) from aqueous solutions. The presence of CPEI on and/or within the purified sawdust provides cationic active sites (i.e., amino groups) and enhances the substantivity of wood cellulose for anionic dyes, thereby improving the percent color removal.
34 citations
TL;DR: In this paper, benzylated wood was used to blend with polystyrene to prepare a wood/plastic composite and its dynamic processability and viscoelastic properties were evaluated.
Abstract: Utilization and conservation of raw materials are two of the main thrusts of our research. Several plasticized woods have been prepared from sawdust in our laboratory. They possess unique thermal, mechanical, and viscoelastic properties. In this study, benzylated wood was used to blend with polystyrene to prepare a wood/plastic composite. Its dynamic processability and viscoelastic properties were evaluated. The mixtures with different blending ratios (benzylated wood/polystyrene) were prepared by mixing them in an intensive mixing device. The specific energy required to do the processing work decreased with the increase of benzylated wood in the composite. The mixture can be molded or extruded easily. The study of the viscoelasticity of the compression-molded composite products using a dynamic mechanical thermal analyzer (DMTA) revealed, regardless of the mixing ratios, a single damping peak (tan δ). This suggested good compatibility between the two polymers. The glass transition temperature and the storage modulus of these composites decreased as the amount of benzylated wood increased. A composite with comparable mechanical properties of polystyrene was obtained from those composites with mixing ratios (benzylated wood/polystyrene) ranging from 0.4 to 0.6. © 1993 John Wiley & Sons, Inc.
34 citations