41 



In Great Britain, much attention has been devoted 

 Carix)co^^" ° to carbocoal, the process yielding a fuel that is denser, 



dustless, clean, uniform in size and quality and stands 

 transportation without disintegration; its density is greater than 

 that of coke and more nearly approaches that of anthracite; the 

 yield of tar and ammonium sulphate is greater than in the by-product 

 coking process. 



Pulverized coal, for certain purposes, has achieved 

 Successful remarkable success, particularly in cement plants, 



copper smelting and other metallurgical processes, 

 and several United States railways have successfully operated loco- 

 motives with this class of fuel. With the exception of the Calgary 

 plant, which uses natural gas, all plants of the Cement Company of 

 Canada are using pulverized coal. It has recently been adopted by 

 the British Columbia sugar refinery, and the International Nickel Co., 

 Copper Cliff, has installed it. Experimental runs in the blast furnaces 

 at Copper Cliff, Ont., showed that not only could pulverized coal 

 replace the more costly coke, but the tonnage of fuel consumed 

 was reduced 30 per cent. 



Substitute for ^^^ striking economic advantage of central coking 

 Anthracite plants, producing retort coke for fuel, gas, coal tar, 



ecessary ammonium sulphate, etc., has been set forth in 



earlier reports, and need not be recapitulated. 



The steadily increasing price and the decrease n the reserves of 

 anthracite demonstrate that, in Ontario and Quebec, we must turn 

 to some form of coke that possesses most of the characteristics of this 

 valuable fuel, such, for instance, as carbocoal or retort coke. 



The greatest obstacle to the introduction of retort coke is the 

 fact that, hitherto, practically all coke, except gashouse coke, has been 

 produced for metallurgical purposes and, for obvious reasons, such coke 

 could be most economically produced at or near the mine. The fact 

 that central coking plants, in the immediate vicinity of large cities, 

 can market not only coke but the gas, tar and all other products, 

 demonstrates their great economic advantage. In addition, the fuel 

 produced by a retort coke plant would be better adapted for domes- 

 tic heating, for raising steam and for similar purposes, than 

 metallurgical coke would. 



For large individual consumers, locomotives and certain other 

 uses, pulverized fuel promises to revolutionize present practice. It is 

 almost axiomatic that the less labour and cost expended on the pre- 

 paration of coal fuel, the better, and, other things being equal, the 

 process that approaches most closely to this dictum is the most efficient 

 and the most economic. 



