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- Title
Effect of viscosity reducing in fluid-bed on the properties of coal pyrolysis tar.
- Authors
LIU Qiao-xia; HAO Ting; LAN Wei-wei; REN Ye; DANG Yu; HUANG Yong
- Abstract
The study of pre-oxidation viscosity reduction technology of coal has been carried out on a fixed ffuidized bed device. The effects of temperature, atmosphere, residence time on the bond index were investigated. The results showed that the bond index could be reduced to below 5 under the conditions of temperature 200 °C, residence time 30 min, atmosphere air and air containing atmosphere, and the coke type has changed from F-type to C-type,and from weakly sticky coal to non sticky coal. By analyzing the com¬position of ZSLB and ZSLA tar products, it was found that tar of ZSLB and ZSLA mainly consists of naphthalene series, alkanes, phenols, phenanthrene series, benzene series, anthracene series, pyrene series, fluorene series, indene series, and other substances, with a similar proportion, with the highest content of naphthalene series; the content of low distillate substances in tar of ZSLB is higher, and the temperature corresponding to the same fraction is earlier, presents a lighter weight.
- Subjects
COAL tar; COAL pyrolysis; VISCOSITY; COKE (Coal product); COAL industry; BOND index funds
- Publication
Applied Chemical Industry, 2023, Vol 52, Issue 9, p2584
- ISSN
1671-3206
- Publication type
Article