Modern Gasworks Practice

INDEX 811 Retort settings, extemal producers for, 60, 113 gas yield from various, 18 grate area for, 82 heat balance of, 138 horizontal (see also under Horizontal Retorts), 61 inclined, 107 main arches for, 80 points on operation of, 125 refractories for, 208 regenerator principle, 60, 64, 95 regulation of vacuum on, 134, 270, 275 starting-up, 125 steaming in, 112, 424 stop-ended, 70 stopping temporarily, 133 temperature of, 63, 411, 433 testing gases in, 129 vertical, 18, 145 waste heat boilers for, 88 Retorts (see also under Retort Settings) cast, 211 composite, 220 continuous horizontal, 109 cost of, 105, 221 hånd made, 211, 213 horizontal, 61, 112 inclined, 107 machine, 211, 213 manufacture of, 210 mouthpieees for, 244 segmental, 219 self-sealing lids for, 244 temperature of, 63, 411, 433 vertical, 145 vertical (see under Vertical Retorts) working repairs to, 226 Reverse action in purifiers, 582 Revivification of spent oxide, 572, 578 reactions, 573 Rew’s steaming system, 113 complete gasification plant, 765 Rhead and Wheeler, 65, 66, 462, 692 Rhead, T. F. E„ 409 Rideal-Taylor process, 614 Rincker-Wolter water gas plant, 749 Rittinger’s formula, 367 Roofs for retort houses, 57 Rose-Hastings complete gasification plant, 764 Sabatier, 695 St. Claire Deville, 424 Salmang, 393 Salt, corrosion of refractories by, 217 in coal, 217, 504 Saturated hydrocarbons, 399 in coal gas, 413, 736, 738 Saturated hydrocarbons in water gas, 736, 738 Schlumberger, 462 Scotch fireclays, 19ö Scotland, supply of gas in, 10 Serubbers, 20, 253 ammonia lost through, 532 capacity and size of, 529 cost of, 29 joints for, 523 operation of, 508 packing for, 524 rules for size and number of, 530 spraying devices for, 527 water required for, 531 Seal on dip pipes, 258, 411, 417 Secondary air, 57 direction of, 143 temperature of, 65 Seger cones, 203, 229 Semi-extemal producers, 122 Series, motors, 348 purification, 588 Settle-Padfield vertical retort, 145 Settle’s downward steaming system, 165 Shélton, F. H., 737 Short, 386, 397 Short circuiting of air, 68 Shunt motors, 348 Siemens, Sir William, 233 Silica, clays, composition of, 197, 198 in fireclays, 194 inversions of, 198 retorts, 201 Siliceous fireclays, 196 Simmersbach, 417 Simmond’s anti-dip, 260 Simplex water-gas plant, 710 Sinnatt, F. S., 422 Site, amount of land required, 14 choioe of for gasworks, 10 condition of soil on, 40 distance of from supply area, 11 lay-out of plant on, 23 level of, 10, 55 Slater, L., 422 Slip, in exhausters, 19 Slow fires, 125 Smith and Pearson’s hydraulic main, 278 Smith, H. E„ 748 Soddy, F„ 617 Sommer, 387, 390 South Metropolitan Gas Co. Act, 6, 7 coke figures, 76 cyanide process, 560 hot purification.process, 610 naphthalene process, 469 regenerator, 101 Speeific gravity of coal gas, 737