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1 Using small-sized semicoke can avoid lacking carbon in furnace bottom and is favourable to inserting electrode deeply, enlarging crucible and reducing eletricity consumption.

2 Pyrolysis gasification semicoke charateristics of two kinds of fresh biomass were studied in order to better investigate the pyrolysis gasification mechanism of fresh biomass.

3 The semicoke is poured by turning tray of the sealing chamber of semicoke screw conveyer to the speed-up zone of the aerofountain combustor (hereinafter referred to as AFC).

4 To intensify the combustion process of the low-calorific semicoke and reduce the size of AFC, in the center of furnace a swirler is arranged.

5 This paper introduced the pyrolysis of the coal and the,(www.Sentencedict.com) properties of the semicoke .

6 From the speed up part of the shaft the burning semicoke mixed with air and stack gases passes into the expanded top where the solid material starts spouting (fountaining).

7 By way of combustion dynamics calculation it is found that the semicoke prepared with calcium oxide added has the highest combustion activation.

8 It introduces the production situation and problems which coke is partly replaced by semicoke coal as reductant in ferroalloy production.

9 The results were, Nitrogen conversion efficiency in gaseous phase was improved by preheastment, thus the nitrogen residual in semicoke accumulated.

10 The main way to process local produced coal is carbonization at lower temperature with semicoke, coal tar, coal gas, and so on as the products.

11 The influence of temperature and moisture on charateristics of pyrolysis gasification semicoke was investigated by Fourier transform infrared spectroscopy (FTIR).