โ Scribed by Brownlie, David
No coin nor oath required. For personal study only.
No, V. The "Babcock '' Procerr By DAVID BROWNLIE One of tlic iicxt stnges in niodcrn stcnm gcncrntion conncsion with other furnace ccpiipnient iisiiig solid cod, is nlrnost certainly coni1)incct low-tempcrnturc csrIionisrition nnd coinbustion. That is, instead of burning raw conl tIirccL, citiicr in the h i p or ~~iilvcriscti form, thcrc is first given in front, or, or ndjnccnt to, the furnncc setting low-tcmpcrnturc carbonisation gcncriilly rindcr conditions of sny 900-1000" P. (480-540" C.), thc residual solid ftiel, with ntiorit tO-I5?% volntilc nintter, being thcn used for coinbustion in placc of tlic rriw coal, citlier direct in tlic highly licntcd condition or when pnrtinlly coolcd. Tlic gnscs niid vnpoors evolved from thc retort nrc piissed tlirougli condcnsing and sorubl)ing plant for the rccovcry of thc trir and light oils, nnd thc rcsidunl gas is bunit in ii cornbustion chomber.
Under these conditions, and triking lor csaiiiplc :I stnndnrd siipcr-powcr station ciilliiblc of treating 1000 tons of coil1 pcr 2.1 lirs., sonictliing like 1250-1300 tons of coal is required instcntl of tlic 1000 tons prcviously, butns nguinst this therc is obtriinctl, say, 1 ci,00&-20,0~ gills. of low-tciiipeniturc trir nntl 2000 gals. crude light oil scr~ibbed from tho gas, whilst with sinnller plnnts rind difficult riiw couls sucli iib low-griidc varieties tlicrc is oftcu, in addition, a11 iniprorcd thcriiiiil efficiciicy in tlie furiiacc.
Typical conibincd low-tcmpcrnturc cnrbonisiition iriid combustion processes on tlicsc lines, priiiinrily, of coiirsc, iutcndcd for bituminous cod, arc tlic " \I I c 1' 5\YCll-Jiungc " p1:int lit Lnkesitlc, JIilw;iukcc, operating with p111scriscd fuel, nnd the I' \'isner'' plnnt at tlic l'hilo Stntioii, Ohio, the " Snlerni " proccss nt thc Lniigcr-IJrIlggC l'owcr Station in Gliciit, tlic " l'intsch " nntl
๐ SIMILAR VOLUMES
One of t.lie hst-known Ihitisli low-tem~ierature c:i rborkitioti procrsscs is the invention of Robert Xticlawin, uf Stirling, reprc~enting cxtcnsivc cspcricncc dating bock to 1913. Since August, 1926, a large " Xaclaurin '' plant of four retorts, with a tlirougliput of 100 tons per 24 h., h s bccn r
silk is usunlly sent out; in this forin for sul~scqucnt operations, such as tlycing, pirniog, wnving, and ltni tting. PROPERTIES 0 1 7 dRTrP1CIAL SILK j~lleb~g.-CIinrdontiet, cupranimonium and viscose silks, bciiig all rcgencmtcd ccllulosc, bchnvc towards ilgcstuffs wry much like cotton, nud the di