Open AccessEnhancing SO 2 capture capacity by preparation of a nano‐CaO sorbent with modified structural parameters
Author(s) -
Moshiri Hadi,
Ale Ebrahim Habib,
Nasernejad Bahram
Publication year - 2015
Publication title -
micro and nano letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.25
H-Index - 31
ISSN - 1750-0443
DOI - 10.1049/mnl.2015.0132
Subject(s) - sorbent , calcination , flue gas , nanoporous , chemical engineering , materials science , sorption , nano , chemistry , adsorption , organic chemistry , catalysis , composite material , engineering
The reaction of CaO with SO 2 is one of the most important methods for flue gas desulphurisation. Two methods for producing high‐capacity sorbents are investigated: a nanoporous CaO and a modified sorbent by washing with acetic acid. The capturing capacities of these sorbents are compared with CaO derived from natural limestone calcination. The solid conversion at 850°C after 3 h for the natural sorbent was only 5%, while this value was improved by up to 13 and 46% for acid‐washed and nanosynthesised sorbents, respectively. The effect of various sorbent pore size distributions on SO 2 capture capacity is investigated.