These
figures may obviously be manipulated in a variety of ways for the design
of a purifying vessel; but, to give an example, if the ordinary
cylindrical shape be adopted with four circular grids, each having a
clear diameter of 8 inches (_i.e._, an area of 50.3 square inches),
and if the material is loaded to a depth of 3 inches on each, there would
be a total volume of (50.3 x 3 x 4) = 604 cubic inches of puratylene in
the vessel, and it would present a total area of (50.3 x 4) = 201 square
inches to the acetylene. At Keppeler's estimation such an amount of
puratylene should weigh roughly 10 lb., and should suffice for the
purification of the gas obtained from 320 lb. of ordinary carbide; while,
applying the coal-gas rule, the total area of 201 square inches should
render such a vessel equal to the purification of acetylene passing
through it at a speed not exceeding (201 / 5.76) = 35 cubic feet per
hour. Remembering that it is minimum area in square inches of purifying
material that must govern the speed at which acetylene may be passed
through a purifier, irrespective probably of the composition of the
material; while it is the weight of material which governs the ultimate
capacity of the vessel in terms of cubic feet of acetylene or pounds of
carbide capable of purification, these data, coupled with Keppeler's
efficiency table, afford means for calculating the dimensions of the
purifying vessel to be affixed to an installation of any desired number
of burners.
Pages:
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363