Sulfur removal from lignite using alkaline solution from tea waste ash by water extraction

被引：7
作者：
Demirbas, A [1 ]
机构：
[1] Karadeniz Tech Univ, Fatih Educ Fac, Dept Chem Edu, TR-61335 Trabzon, Turkey
来源：
ENERGY SOURCES | 2000年 / 22卷 / 09期
关键词：
alkaline solution; desulfurization; extraction; high-sulfur lignites; tea waste ash;
D O I：
10.1080/009083100300001582
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Some high-sulfur lignites were extracted with aqueous alkaline solution obtained from the water-soluble fraction of tea waste ash. High-sulfur removal from lignites was possible by this method. The effects of temperature, the amount of tea waste ash used, extraction time, and stirring speed were studied in the ranges 5-35 g, 350-550 K, 0.042-1.7 MPa, 15-60 min, and 300-600 rev/min, respectively. The extents of pyritic and organic sulfur removal were investigated.
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页码：763 / 770
页数：8
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