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The demonstration operation of an pilot-scale bio-dimethyl ether(DME) synthesis system was carried out for with 300-350kg/h of wood chips as feedstock. The tar content was 4.4-5.7g/Nm3 and carbon percent in the residual char was low due to the combined advantages of the specific gasifier combining with upstream and downstream gasification with O2-rich air(46.3vol%), fed through the top and bottom...
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