Fast pyrolysis is envisioned as a promising technology for the utilization of forestry wood waste (e.g., widely available from tree logging) as resources. In this study, the potential of an innovative approach was explored to convert forestry wood waste of Vernicia fordii (VF) into energy products based on fast pyrolysis combined with nano-catalysts. The results from fast pyrolysis using three types of nano-catalysts showed that the distribution and composition of the pyrolytic product were affected greatly by the type of nano-catalyst employed. The use of nano-Fe₂O₃ and nano-NiO resulted in yields of light hydrocarbons (alkanes and olefins) as 38.7% and 33.2%, respectively. Compared to the VF sample, the use of VF-NiO and VF-Fe₂O₃ led to significant increases in the formation of alkanes (e.g., from 14% to 26% and 31%, respectively). In addition, the use of nano-NiO and nano-Fe₂O₃ catalysts was found to promote the formation of acid, aromatics, and phenols that can be used as chemical feedstocks. The NiO catalyst affected the bio-oil composition by promoting lignin decomposition for the formation of aromatics and phenolics, which were increased from 9.52% to 14.40% and from 1.65% to 4.02%, respectively. Accordingly, the combined use of nano-catalysts and fast pyrolysis can be a promising technique for bio-energy applications to allow efficient recovery of fuel products from forestry wood waste.

Pterocarpus indicus was extracted by three organic solvents: ethanol, ethanol/benzene (1:2), and ethanol/methanol (1:1). The extracts was analyzed by FT-IR, GC-MS, TG, Py-GC-MS, and TDS-GC-MS. Abundant bioactive ingredients in the Pterocarpus indicus extracts included alkanes, phenols, alcohols, esters, carboxylates, alkenes, acids, and aromatic compounds. The main active ingredients was Cinnamaldehyde, (E)-.This study of the chemical composition of Pterocarpus indicus provides a scientific basis for the development and utilization of the plant, with potential applications in the fields of biomedicine, the chemical industry, cosmetics, skin care products, and spices.

In this paper, Koelreuteria paniculata roots was taken as the research object, and its active substances were analyzed. First, Koelreuteria paniculata roots was crushed, dried, extracted, filtered, and concentrated by rotary evaporation. Then, the active substances of Koelreuteria paniculata roots were extracted with ethanol, benzene/ethanol, and methanol. Finally, Koelreuter was detected by GC-MS, FT-IR, TD-GC-MS, and TG analyses. Data analysis revealed that Koelreuteria paniculata roots contains oleic acid, linoleic acid, Lupinol, retinal, and other active substances that are of great value to medical, chemical, and food industries.

Cotinus coggygria Scop. as a precious landscape shrub and a good afforestation species that is used in the pharmaceutical industry. In this paper, TG-FTIR, TG-DTG, and Py-GC/MS were used to study the biomaterials of Cotinus coggygria used as biofuels and biochemicals under the catalysis of nano-Mo/Fe₂O₃. The wood powder was extracted using a methanol/benzene solution, and the extract was analyzed by FTIR and GC-MS. The results showed that the pyrolysis products of Cotinus coggygria wood were rich in phenols, alcohols, and biofuels. The metal nano-Mo powder played a catalytic role in the interpretation of the gas in the species, where it accelerates gas products. Metal nano-Fe₂O₃ has a certain flame-retardant effect on the burning process of Cotinus coggygria wood, and the residual amount of pyrolysis is greater. The contents of the extract Formamide, 1-Hexanol, Levodopa, and 9,12-Octadecadienoic acid (Z,Z)- are not only widely used industrially but also play an important role in medicine. Cotinus coggygria is therefore an excellent biomaterial for biofuels and biochemicals.

Fourier transform infrared (FT-IR) spectroscopy and gas chromatography-mass spectrometer (GC-MS) were used to analyze organic solvent extracts of Populus tomentosa Carriere, the results show that the Chinese Buckeye Seed is mainly healthy and rich in Chinese Buckeye Seed extracts, The main representative of the active ingredient are Furfural, Isosorbide Dinitrate, Catechol, 1,2-Benzenediol, 4-methyl-, 3-Amino-s-triazole, 2,3-Quinoxalinedione, 1,4-dihydro-, Docosanoic acid, Medetomidine. Chinese Buckeye Seed extract contains a large amount of biologically active ingredients, including acids, phenols, alcohols, ketones and ethers, not only in the fields of bioenergy, biomedicine, cosmetics, skin care and fragrance, but also potential application prospects, Chinese Buckeye Seed?s chemical composition research provides a scientific basis for the development and utilization of this plant.