Recovery Of Combustible Matter From Waste
Fine Chinese Coals By A Waste Vegetable Oil
Agglomerating Process And Its Combustion
Characteristics
Author(s)
Q. Wang, N. Kashiwagi, P. Apaer, Q. Chen, Y. Wang, T. Maezono & D. Niida
Abstract
Coal production increases continuously due to the development of mechanization
in coal mining and demand in its related fields of application worldwide.
Especially, coal production in China is increasing and a large amount of waste
fine coals (<0.5 mm) which are difficult to be cleaned. Waste fine coals usually
contain large amounts of ash contents and inorganic sulfur contents due to the
mechanical coal mining of low grade coals. Therefore, waste fine coals are
unavailable as energy resources, spontaneous combustion leading in turn to air
pollution because of their coal content and small size which increases the surface
area liable to be wet and oxidized, and occupation of disposal land which is also
lead soil and water contamination.
In this study, a waste vegetable oil agglomerating process was approached for
coal combustible matter recovery from Chongqing Nantong waste fine coals in
China. The oil agglomerating process had usually been developed by mineral oil
(such as kerosene) of exhaustible resource. Therefore, in this study, simulated
waste vegetable oils are selected as oil agglutinative agents because the waste
vegetable oils which are recycled, renewable, and less polluting energy resources
from the point of view of effective utilization of waste coal and on the cost front.
However, waste vegetable oils have the possibility of influence on the coal
cleaning efficiency, because the waste vegetable oils may be changed in the
surface property and viscosity by different kinds of vegetable oils and chemical
structure with the usage environment. Therefore, in the study, cleaning coal
Keywords
waste fine coal, waste vegetable oil, renewable energy, oil agglomerating process, China
Related Book
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