Modern Gasworks Practice

800 INDEX Ash, fusion point of, 216 in coal, 361 11 Athion ” proeess of purification, 619 Atmosphere, in retorts, 431 in water gas plants, 730 Avogardro’s law, 415 Bacon, 373 Band conveyors, 310 Barker’s miil, 527 Barnum, D. D., 139 Barrel arches, 80 Baumé density scale, 790 Baum coal washer, 368 Bayer, 468 Becquevort and Deguide, 515 Bedson, P. P., 365 Belton, F. W. J., 93 Benzene, 399 calorific power of, 402, 423 characteristics of, 400 degradation of, 409 effect on gas quality when removed, 423, 732 formation of napht-halene from, 461 in coal gas, 413, 422, 423, 424 in water gas, 423, 732 recovered by stripping, 423, 732 spirit, 423 war output of, 4 Benzol, as a naphthalene solvent, 468 calorific power of spirit, 423 effect of removal on gas quality, 423, 732 recovered by stripping, 423, 424, 732 recovered from water gas, 423, 732 value of as gas or as spirit, 423 Benzyl-alcohol, 400 Bergius, 357 Berthélot, 403 Birmingham Corporation coke ovens, 185 Blau gas, 745 Bloor, H. E., 256 Blue water gas (see under Water Gas) Boilers, cost of, 31 general points on, 752 grate area for, 752 position of, 24 waste heat, 88, 743 Bond, J. W., 432 Bone, W. A., 65, 360, 404, 405 Bonecourt waste heat boiler, 92 Bonnet/s gasholder tank, 684 Bonnybridge fireclay, 197 Boring auger for testing ground, 41 Botley, 472 Boulaye, R. de la, 473 Bournemouth bridge pipe, 251 Braddock’s retort house governor, 278 Bradshaw, 214 Breakdown of electrical plant, 352 Bremond, 465 Bridge pipes, Bournemouth, 251 joints for, 248 various types, 251 Brighton oil spray, 727 British thermal units, therm and, 6, 7, 13. 788. 789 electrical equivalent of, 354 horse power equivalent of, 354, 788 recovered from coal, 365, 415, 427, 430 Broadberry, A. E., 120 Brooke’s, automatic air damper, 128 regenerator, 100 Brown, R. P., 242 Browne, A. F., 442 “ Brownox ” for purification, 574 Brown’s regenerator, 100 Bueb, 391, 435, 560 Buildings, gasworks, 48 brick panelled, 49, 51 concrete, 50, 52 cost of various types, 51, 52 foundations for, 42, 52 Burgess, 382, 406 Burkheiser proeess, 539 Butterfield, W. J. A., 448 Butylene, 399 in coal gas, 413, 422 Cables, electrical, 350 Cdllendar, Prof., 233 Calorific intensity, 63 Calorific value, “ declared,” 6, 24 effect of steaming on, 424, 429 effect on of benzol stripping, 423, 732 of average CmHn, 402 of benzene, 402 of blue water gas, 736, 738 of carbon, 62 of carbon monoxide, 402 of carburetted water gas, 736, 738 of coal slack, 118 of coke dust, 118 of “ complete ” gas, 757, 769, 774, 776 of ethane, 4C2 of ethylene, 402 of hydrogen, 402 of methane, 402 of mixed coal and water gas, 420, 736 of propylene, 4C2 of straight coal gas, 420 of various gases, 402, 736 reeovered from coal, 365, 415, 427, 430