Activated carbons with molecular sieve properties

被引：0

作者：

Manso, R ^{[1
]}

Pajares, JA ^{[1
]}

Guil, JM ^{[1
]}

Albiniak, A ^{[1
]}

Jasienko-Halat, T ^{[1
]}

Siemieniewska, T ^{[1
]}

机构：

[1] CSIC, Inst Nacl Carbon, E-33080 Oviedo, Spain

来源：

PROSPECTS FOR COAL SCIENCE IN THE 21ST CENTURY | 1999年

关键词：

D O I：

暂无

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：

Potential carbon molecular sieves were obtained from coals of different rank by controlled oxidation pretreatment followed by carbonization and activation with steam to low bum-off. Activation temperature is important in the development of microporosity of chars from anthracite. For chars from low rank coals, narrower micropore size distributions can be obtained by using low activating stream flow rates. Materials with molecular sieve properties and microporosity mainly distributed within the 4.1-5.4 Angstrom range were prepared by coal preoxidation, carbonization and slight activation, using a low stream flow rate and a temperature of 750 degrees C during the activation step.

引用

页码：1073 / 1076

页数：4

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