Title :
Test study of mechanism on the reaction of sodium hydroxide with silica from corn straw ash
Author :
Xudong Chen ; Huaibin Wang
Author_Institution :
New Energy & Renewable Energy Lab., Harbin Inst. of Technol., Harbin, China
Abstract :
Study the reaction of sodium hydroxide with silica from corn straw ash (CSA). The influences of concentration of sodium hydroxide solution, the ratio of CSA mass to sodium hydroxide solution volume, reaction time, and reaction temperature for the dissolution rate of silica and the sodium silicate modulus are studied. At the same time, we find that the apparent activation energy of this reaction is 8.688KJ/mol by Arrhenius equation. The results show that the activation energy of this reaction is low, so this reaction can be in progress at lower temperatures.
Keywords :
dissolving; reaction kinetics; renewable materials; silicon compounds; sodium compounds; solutions; waste; NaOH; SiO2; activation energy; corn straw ash; dissolution rate; reaction temperature; reaction time; sodium hydroxide solution; solution volume; Ash; Chemicals; Fitting; Polynomials; Silicon compounds; Temperature distribution; activation energy; corn straw ash; influences; silica; sodium hydroxide;
Conference_Titel :
Materials for Renewable Energy and Environment (ICMREE), 2013 International Conference on
Conference_Location :
Chengdu
Print_ISBN :
978-1-4799-3335-8
DOI :
10.1109/ICMREE.2013.6893658