. Pacific Gas and Electric magazine. re- maining in the retorts during a period of fourhours, is about as follows: First hour of carbonization yields 3300 cubic •• 2930 •• Third •? 2650 •• Fourth •• 1650 •• Iron retorts were set in simple furnaces us-ing coke as fuel. The coke was burned ongrate bars at the bottom of the furnace, andthe products of combustion passed out througha flue at the back and directly under the heed was given to economy of fuel, infact, the hot coke was drawn from the re-torts, wheeled into the yard and quenchedwith water, and then hauled back in
. Pacific Gas and Electric magazine. re- maining in the retorts during a period of fourhours, is about as follows: First hour of carbonization yields 3300 cubic •• 2930 •• Third •? 2650 •• Fourth •• 1650 •• Iron retorts were set in simple furnaces us-ing coke as fuel. The coke was burned ongrate bars at the bottom of the furnace, andthe products of combustion passed out througha flue at the back and directly under the heed was given to economy of fuel, infact, the hot coke was drawn from the re-torts, wheeled into the yard and quenchedwith water, and then hauled back into the re-tort house and used for fuel, water and all. In some small works all the coke made wasused to fire the benches, and in the best of thelarger ones one-half of the coke was used. Clay retorts and higher temperatures re-quired careful study of the principlej of com-bustion and the application of heat to performwork. This lead to increasing the number ofretorts in a settling to five, then six, and fin-. Fig. 4 ally to as many as eight and nine. It beganto be recognized that higher heats might beobtained by the use of less fuel, and the re-maining coke might be sold as a valuable by-product for domestic use as fuel.
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Keywords: ., bookauthorpacificgasandelectric, bookcentury1900, bookdecade1900
