Biomass is of growing interest as a secondary energy source. Biomass could be converted to energy especially by pyrolysis or gasification. Understanding the mechanism and the kinetics of biomass pyrolysis and gasification could be the key to the design of industrial devices capable of processing vast amounts of biomass feedstock. There are multiple reactions describing the decomposition of biom...

This laboratory study uses a novel furnace to resolve nitrogen evolution during the three stages of pulverized coal combustion. primary devolatilization, secondary pyrolysis, and com­ bustion The behavior of six coals depicts continuous rank variations, as well as suppressed nitrogen evolution {i'om low volatility coals. During primary de volatilization of any coal, ar­ omatic compounds in tar ...

Low-rank coal (LRC) pyrolysis assisted by biomass can realize the clean and efficient conversion utilization of LRC. The gas tar characteristics obtained from co-pyrolysis apple branch (AB) LRC at different stages were studied with TG-FTIR Py-GC/MS. It was found that process could be divided into four stages, weight loss rate AB+LRC 24.03% in second stage (194.60–404.63 °C), lower than calculat...

The European Union has made very clear political decisions to increase environmental awareness. A Thematic Strategy on the Sustainable Use of Pesticides was launched by the Commission of the European Communities in 2006. It was decided to minimize the hazards and risks to health and the environment caused by the use of plant protection products. In 2009, the European Parliament accepted a new f...

The formation characteristics of aerosol particles from pulverized coal pyrolysis in high temperatures are studied experimentally. By conducting a drop-tube furnace, fuel pyrolysis processes in industrial furnaces are simulated in which three different reaction temperatures of 1000, 1200, and 1400 degrees C are considered. Experimental observations indicate that when the reaction temperature is...

Alkali metals have a significant effect on the transformation of three-phase nitrogen during coal pyrolysis, but there is lack understanding about this mechanism action. In work, effects inorganic sodium (NaCl) and organic (CH3COONa) mutual in pyrolysis were studied by TGA-MS/FTIR, XPS Py-GC/MS. Results shown that more remained char, conversion heterocyclic to tar-N was inhibited with most CH3C...

Dibenzopyracylene (indeno[l ,2,3-cdjfluoranthene) (4) is of theoretical interest due to its electron system, which is regarded as a perturbed [12]annulene [4]. 4 wras only accessible by a multistep synthesis starting from fluoranthene [5]. It was also isolated in traces from the tar formed by pyrolysis of several low molecular compounds [6]. According to the results [3, 7, 8] of the CO eliminat...

• Distillate residues from biomass pyrolysis oils were synthesized into renewable pitch. The biopitch properties closely align with those of coal tar Diverse biomasses used allow greater flexibility for biorefineries. Petroleum-based carbon solid materials, such as petcoke and pitch, have decreased in quality and/or availability due to various factors, the declining elemental crude oil push tow...

Pyrolysis of chlorinated phenolics and thiolignin was investigated to elucidate the principle step occurring during combustion of organic material in bleach plant effluent. Chlorinated phenolics found in bleach plant effluent. such as chlorophenols, chloroguaiacols, chlorovanillins and chlorosyringaldehydes, were completely decomposed at 700 to 900°C with alkali and oxygen. Organically bound ch...