An innovative approach to develop microporous activated carbons in oxidising atmosphere
- Resource Type
- Authors
- Monika Chaudhary; M.M.L. Ribeiro Carrott; Suhas; Randhir Singh; Lok Pratap Singh; Peter J.M. Carrott
- Source
- Journal of Cleaner Production. 156:549-555
- Subject
- Kraft lignin
Renewable Energy, Sustainability and the Environment
Chemistry
Strategy and Management
02 engineering and technology
Building and Construction
Microporous material
010501 environmental sciences
021001 nanoscience & nanotechnology
01 natural sciences
Industrial and Manufacturing Engineering
Atmosphere
chemistry.chemical_compound
Adsorption
Chemical engineering
Volume (thermodynamics)
medicine
Lignin
Organic chemistry
Reactivity (chemistry)
0210 nano-technology
0105 earth and related environmental sciences
General Environmental Science
Activated carbon
medicine.drug
- Language
- ISSN
- 0959-6526
The aim of the study was to investigate a rather oxidising atmosphere such as air for the development of a microporous activated carbon from demineralised kraft lignin. Demineralisation of lignin makes the precursor low in reactivity and hence can allow the use of more oxidising atmospheres. Control of the activation conditions allowed development of microporous activated carbons with type I N 2 adsorption isotherms from demineralised kraft lignin having micropore volumes and mean micropore widths up to 0.374 cm 3 g −1 and 1.12 nm, respectively. A unique feature of this study is to prepare high surface area (1305 m 2 g −1 ) microporous activated carbon at a high temperature (950 °C) in air atmosphere. The effect of temperature on the surface area, micropore volume, mean micropore width and total pore volume was also studied for the development of activated carbons from the precursor in the range 550–1050 °C.