coal char t130x enhanced superfine mill

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nbsp 0183 32 The steel vial was transferred into a low-speed ball mill Retch 100 PM Germany where preliminary milling operations were carried out to foster the dispersion of the MWCNT into the Ti6Al4V powders The milling parameters used for this preliminary milling operation were the speed of 150 revolutions per minute rpm time of 8 h h and ball to powder ratio BPR of 10 1...
Sustainable alternatives to carbon intensive paddy field
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nbsp 0183 32 The char product irrespective of the heating rate decreases in yield due to char gasification at high temperatures Fig 5 a shows an increase in gas yield with higher heating temperatures The gas yield was found to decrease with temperature initially for slow pyrolysis however there was an increase in the gas yield after 550 176 C...
Alkali metal bifunctional catalyst
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nbsp 0183 32 In addition alkali metal carbonates have been used in biomass or coal gasification as catalysts for water-gas shift WGS reaction 20 21 Na 2 ZrO 3 has exhibited catalytic ability to oxidize CO to CO 2 that can be subsequently trapped by sorbents allowing them to perform the roles of both catalyst and sorbent 22...
Experimental investigation of combustion characteristics
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nbsp 0183 32 The coal samples were ground in a mill air-dried at room temperature and sieved to a particle size of less than 200 μm To achieve a uniform surface for heating coal samples weighing about 80 mg were formed into cylindrical pellets by 1 ton of pressure for 1 min...

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