The effect of biomass addition on pyrolysis characteristics and gas emission of coal gangue by multi-component reaction model and TG-FTIR-MS

Increasing the energy density of high‐moisture wastes of beverage industry by hydrothermal pretreatment: Comparison of thermochemical conversion behaviors

“…In addition to the decomposition of methoxyl groups, benzyl groups were also decomposed at high temperatures, contributing to the formation of CH 4. 91 Additionally, the formation of ketones, aldehydes, and acids with C═O bonds was quite high in the pyrolysis of HTCFS at temperatures above T p,max .…”

Dynamic Evolution and Covariant Response Mechanism of Volatile Organic Compounds and Residual Functional Groups during the Online Pyrolysis of Coal and Biomass Fuels

“…Moreover, compared with the later responses of gaseous phenols/esters from SBC, the prioritized temperature responses of gaseous acids/aldehydes/ketones might be highly related to a large number of fused aromatic structures (Figure S12). The degradation of condensed aromatic skeleton structures linked together by −CH n , CC, carbonyl groups, and other functional groups in SBC could lead to the production of gaseous aromatics (e.g., PAHs) and small unsaturated oxygen-containing molecules, such as ketones/aldehydes/carboxylic acids. , The aromatics, especially SBC-PAHs, exhibited heterogeneous emission characteristics and mechanisms (Figure S3f). For example, the significant increases in SBC-PAHs at ∼500–600 °C could be attributed to the rapid emission of free PAHs bonded to the aromatic skeleton by weak bonds .…”

Simulation of the Two-Stage Pyrolysis Process of Mixed Waste Plastics

“…Since the transfer of heat requires some time, a fast heating rate may result in insufficient reaction (volatilization and decomposition) of the test sample, leading to an unclear change in the weight loss peak. 20 Therefore, a lower heating rate can observe the multistep discrete reaction that may occur during the pyrolysis process, and the decomposition reaction process is easier to distinguish. 21 Thus, the heating rate during the thermogravimetric test is selected as 10 K/ min.…”