 Carbonization of biomass: Effect of additives on alkali metals residue, SO2 and NO emission of chars during combustionJianhui Qi, Kuihua Han, Qian Wang and Jie Gao Energy, 2017, vol. 130, issue C, 560-569 Abstract: The effect of additives (NH4H2PO4, CaCO3 and CaO) on biomass carbonization was studied in the current paper, including residual K and Na in chars, SO2 and NO emission of different chars during combustion. Experiment was carried on a tube furnace system. The results show that, CaO and NH4H2PO4 reduce the alkali content of chars to different degree. Three additives inhibit SO2 emission from raw and carbonized biomass remarkably, and SO2 mass emission is lesser than 0.1 mg g−1. Three additives enhance NO emission at different levels, and NO mass emission is from 1.2 to 3.5 mg g−1. Both raw and carbonized biomass can be modified by some additives to achieve near zero emissions of SO2. Although the additives promote the NO release, the total emission rate (3.8–10.1%) was much lower than that of brown coal combustion, which was reported as 33.5–37.7%. Economic analysis shows that three additives are economy for industry utility. Thus the three additives are good for modifying biomass carbon to attain clean and efficient combustion. Keywords: Biomass carbonization; Alkali metal; SO2; NO; Additive (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:130:y:2017:i:c:p:560-569 DOI: 10.1016/j.energy.2017.04.109 Access Statistics for this article Energy is currently edited by Henrik Lund and Mark J. Kaiser More articles in Energy from Elsevier |
Is your work missing from RePEc? Here is how to contribute.
Questions or problems? Check the EconPapers FAQ or send mail to .
EconPapers is hosted by the
School of Business at Örebro University.