Coke is a smokeless fuel. It readily absorbs moisture from the atmosphere and if not kept under cover its moisture content may be as much as 20 per cent of its own weight.
Gas-house coke is generally softer and more porous than oven coke, ignites more readily, and requires less draft for its combustion.
[Pg 172]
16,000 Horse-power Installation of Babcock & Wilcox Boilers and Superheaters at the Brunot’s Island Plant of the Duquesne Light Co., Pittsburgh, Pa.
FOOTNOTES
[33] The Panther Creek District forms a part of what is known as the Southern Field; in the matter of hardness, however, these coals are more nearly akin to Lehigh coals.
[34] Sometimes called Western Middle or Northern Schuylkill Field.
[35] Geographically, the Shamokin District is part of the Western Middle Mahanoy Field, but the coals found in this section resemble more closely those of the Wyoming Field.