Interactions between Quartz Sand and Wood Doped with either K or Na Salts under Steam Gasification and Combustion Atmospheres

被引：11

作者：

He, Zimeng ^{[1
]}

Saw, Woei L. ^{[1
]}

van Eyk, Philip J. ^{[1
]}

Nathan, Graham J. ^{[1
]}

Ashman, Peter J. ^{[1
]}

机构：

[1] Univ Adelaide, Adelaide, SA, Australia

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2020年 / 59卷 / 04期

关键词：

WATER-VAPOR GASIFICATION; FLUIDIZED-BED COMBUSTION; COAL CHAR; SODIUM; ALKALI; ASH; POTASSIUM; BIOMASS; AGGLOMERATION; SILICA;

D O I：

10.1021/acs.iecr.9b05712

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The interactions between quartz sand and wood, which was doped with either K or Na salts, were investigated in a lab-scale, fixed-bed reactor under either a steam gasification or a combustion atmosphere at 900 degrees C. For the cases of the potassium/sodium phosphate salts, the interaction was found to be melting induced, while for the cases of the other salts, it was found to be coating induced. Large agglomerates were found to have already been formed during the early stages of steam gasification for the wood samples doped with potassium/sodium carbonate and acetate. However, the agglomerates obtained under the combustion atmosphere were found to be insignificant for the wood samples doped with potassium/sodium chloride. Both the reaction atmosphere and the types of salts were found to affect the formation of potassium/sodium silicates in the agglomerates and the interactions between the quartz sand with gaseous K or Na significantly.

引用

页码：1712 / 1722

页数：11

共 45 条

[1] Agglomeration mechanism in biomass fluidized bed combustion - Reaction between potassium carbonate and silica sand [J].