Topic
Pyrolysis
About: Pyrolysis is a research topic. Over the lifetime, 34918 publications have been published within this topic receiving 833524 citations.
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TL;DR: The similarity of the observed rate of the secondary decomposition of guaiacols during kraft lignin pyrolysis with that previously reported for pyroglysis of pure Guaiacol suggest that the reactions of lign in's thermally liberated single-ring products are insensitive to the presence of other molecular species or poymer residuum.
Abstract: The reaction pathways involved in the pyrolysis of kraft lignin, kraft lignin plus tetralin, a milled wood lignin, and pine wood were examined. The temporal variations of the quantitative yields of 33 different products, including 12 gases, water, methanol, and 19 phenolics allowed resolution of primary and secondary pathways, description of the influence of reactor design and lignin type on product yields, and formulation of a simple kinetic lumping scheme. Products within separate guaiacol and catechol lumps attained maximal proportions at 7.5 and 15 min, respectively, during kraft lignin pyrolysis at 400/sup 0/C. Within a lump, the secondary reactions of individual species were nearly synchronous. Further, the similarity of the observed rate of the secondary decomposition of guaiacols during kraft lignin pyrolysis with that previously reported for pyrolysis of pure guaiacol suggest that the reactions of lignin's thermally liberated single-ring products are insensitive to the presence of other molecular species or poymer residuum. All of the foregoing indicates that a simple reaction network based on phenol, guaiacol, and catechol lumps could be a useful model of phenolics product evolution.
176 citations
TL;DR: In this paper, the authors investigated the catalytic degradation of waste high-density polyethylene (HDPE) to hydrocarbons by ZSM-5, zeolite-Y, mordenite and amorphous silica-alumina.
176 citations
TL;DR: It was found that MWP produced a gas with a higher concentration of syngas than CP, reaching values of up to 94vol%.
176 citations
TL;DR: Thermal and ozone regenerations of granular activated carbons (GAC) used in the removal of phenol from aqueous solution have been studied and it was shown that spent carbons can recover most of their adsorption characteristics and specific surface areas when regenerated through a number of Adsorption-ozone regeneration cycles.
176 citations
TL;DR: It is suggested that biochar prepared at higher temperature (550 °C and 650 ° C) are more suitable for carbon sequestration and agricultural purpose.
175 citations