Batch Pyrolysis and Co-Pyrolysis of Beet Pulp and Wheat Straw

Abstract

Granulated beet pulp and wheat straw, first separately and then mixed in a weight ratio of 50/50%, underwent a pyrolysis process in a laboratory batch generator with process temperatures of 400 and 500 °C. The feedstock’s chemical composition and the pyrolysis products’ chemical composition (biochar and pyrolysis gas) were analysed. A synergistic effect was observed in the co-pyrolysis of the combined feedstock, which occurred as an increase the content of the arising gas in relation to the total weight of the products. and as a reduction of bio-oil content. The maximum gas proportion was 21.8% at 500 °C and the minimum between 12.6% and 18.4% for the pyrolysis of individual substrates at 400 °C. The proportions of the gases, including CO, CO2, CH4, H2, and O2, present in the resulting synthesis gases were also analysed. The usage of a higher pyrolysis final temperature strongly affected the increase of the CH4 and H2 concentration and the decrease of CO2 and CO concentration in the pyrolysis gas. The highest percentage of hydrogen in the synthesis gas, around 33%vol, occurred at 500 °C during co-pyrolysis.

Synthesis of Carbon from Rice Groats at Various Pyrolysis Temperatures and Its Application for the Recovery of Chromium Wastewater from the Tannery Industry

“…Pyrolysis is commonly used for organic compounds. Pyrolysis process occurs mass reduction due to the release of H2, CH4, H2O, CO and CO2 gases [15,16,17,18]. In this research, carbon synthesis from rice groats will be carried out with pyrolysis temperature variations to determine the temperature effect of the characteristics of carbon (yield, water content, ash content, and iodine number).…”

Tuning Sugar Biomass Waste Conversion for the Preparation of Carbon Materials for Supercapacitors and Catalysts for Oxygen Reduction

“…It is therefore urgently necessary to develop new chemical technologies based on the use of sugar beet bagasse wastes to produce various useful products. [ 10,13 ] Traditionally, beet pulp is used for feed and used as a source of food fibers, [ 12 ] and the recent increased interest in the development of value‐added products from beet pulp has stimulated the search for new processing areas, among which is the creation of a porous framework for composite materials for temperature control of buildings, [ 14 ] biochar and pyrolysis gas, [ 15 ] hydrochar, [ 16 ] and three‐dimensionally hierarchical porous carbons. [ 17,18 ]…”

“…The developed approach demonstrates the tuning of functional properties and morphology of CMs under experimentally simple conditions using conventional reagents (KOH and H 3 PO 4 ) and opens up new directions in the circular biomass usage projects. framework for composite materials for temperature control of buildings, [14] biochar and pyrolysis gas, [15] hydrochar, [16] and three-dimensionally hierarchical porous carbons. [17,18] Sustainability also implies shifting toward clean and resourcesaving energy, which includes modern electrochemical energy conversion and storage systems with a low carbon footprint, including proton-exchange membrane fuel cells (PEM FCs) and supercapacitors (SCs).…”