文献类型：期刊文献

英文题名：Reduction of Reactor Corrosion by Eliminating Liquid-Phase Existence in Dry Dilute Acid Pretreatment of Corn Stover

作者：Shao, Shuai[1];Zhang, Jian[1];Bao, Jie[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Bioreactor Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2017

卷号：31

期号：6

起止页码：6140

外文期刊名：ENERGY & FUELS

收录：;EI(收录号：20172803902755);WOS:【SCI-EXPANDED(收录号:WOS:000404691900038)】；

基金：This research was supported by the National High-Tech Program of China (2012AA022301), the Natural Science Foundation of China (21306048), the Fundamental Research Funds for the Central Universities of China (WF1314036).

语种：英文

外文关键词：Lignocellulose - Steel corrosion

摘要：Serious corrosion of reactor metal walls by aqueous dilute acid solution is one of the essential drawbacks of dilute acid pretreatment (DAP) in the biorefining of lignocellulose biomass. In this study, the corrosion of pretreatment reactor metal walls was significantly reduced by the dry dilute acid pretreatment (DDAP) of corn stover, a modified DAP, in which the aqueous dilute acid solution is completely absorbed by high solids corn stover feedstock. The iron ion release from the stainless-steel walls of the reactor was measured, and the corrosion degree was quantitatively characterized. The reactor corrosion was reduced by approximately 85% when the solid/liquid ratio increased from the conventional value,of 1:10 to the high value of 1:0.5 at the same sulfuric acid concentration in the DDAP. The results provided the simple and practical solution to the key technical barrier of DAP and paved the way for large-scale application.