Activation of biomass with volatilized KOH

Abstract

Activation of biomass (cellulose, lignin, and sawdust) with volatilized KOH was proposed to produce low-ash activated carbon.

Cross-polymerization between bio-oil and polyaniline: synergistic effects on pore development in subsequent activation and adsorption of phenol

“…4a). The increasing temperature resulted in removal of -OH via cracking or dehydration reactions 33,34 and a similar tendency was observed for the N-H (Fig. 4c).…”

Varied Pyrolysis Behaviors of Typical Forestry, Kitchen, and Manure Wastes in CO2

“…Figure a shows the X-ray diffraction (XRD) patterns of the biochar of varied origins, with the particle size and full width at half-maximum shown in Table S3. The diffraction peaks of amorphous carbon at 22° and 43° were assigned to the diffraction of C (002) that represents the regularity of graphitic carbon crystals and C (100) that represents sizes of the carbon crystals. , The C (002) peaks were almost invisible in the biochar from the pyrolysis of pig manure, suggesting a low aromatization degree. This was due to the abundant inorganics like SiO 2 with the diffraction peaks at 21°, 36°, 39°, 50°, 54°, and 60° (JCPD number 47-1144).…”

Active Learning-Based Guided Synthesis of Engineered Biochar for CO2 Capture

“…We chose carbonization followed by KOH activation, a verified and practical method for preparing high-performance CO 2 adsorption engineered biochar samples. − In this synthesis route, five parameters, including carbonization temperature ( T C ) and residence time ( R C ), activation temperature ( T A ) and residence time ( R A ), and mass ratio of KOH and biochar ( K / B ), were considered essential, as these could be varied or adjusted conveniently during experimentation. Post activation, the engineered biochar samples were collected and washed using distilled water to remove unreacted chemicals and dried at 110 °C for 24 h.…”