Discernment of synergy during the co‐pyrolysis of lipid‐extracted microalgae and digested municipal solid waste: a thermogravimetric–mass spectrometric study

Abstract

BACKGROUND: The current study investigated the co-pyrolysis nature of biomasses, gas yields, kinetics and thermodynamics of Chroococcus sp. (CC), digested municipal solid waste (DMSW) and their mixtures using thermogravimetric analysis and mass spectrometry.RESULTS: Thermogravimetric/differential thermogravimetric analysis indicated three major weight loss stages: dehydration (50-150 °C), thermal degradation of structural components (150-550 °C) and char decomposition (550-800 °C). The gases released during the process mainly contained CO, CH 4 , CO 2 and H 2 as main components. Also, with an increase in the composition of CC, the hydrogen yields were noticed to increase. Model-free isoconversional methods, the Kissinger-Akahira-Sunose and Friedman methods, were considered to identify the activation energy. The kinetic results showed that an increase in the percentage of CC in the mixture lowered the activation energy. The activation energies recorded for CC,

Microbial enzymes for green energy and clean environment

“…[1][2][3][4][5][6][7][8][9][10][11][12] In addition to this various biomass, biopolymers including lignin, cellulose, and municipal-, industrial-, and agricultural-based pollutants were documented to convert into valuable products using enzymatic pathways. [13][14][15][16] The cutting-edge technologies of protein engineering and directed evolution have already minimized the cost of enzymatic transformation processes with higher product yield. Both microbes and their enzymes significantly contribute to parallel ecosystem stability in environmental pollution and clean energy generation.…”

Catalytic microwave preheated co-pyrolysis of lignocellulosic biomasses: A study on biofuel production and its characterization

“…Bio-oil obtained through the pyrolysis process is seems to be highly oxygenated which has resulted in low heating value, enhanced acidity, significant humidity content. All these issues lead to poor storage stability (Vuppaladadiyam et al, 2021). An effective way of mixing two or more biomass feedstocks is commonly known as the co-pyrolysis technique which has shown much improvement in the end products without much energy consumption.…”