Caption: Magazine - Illinois Chemist (1922 Selections)
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Tin I Ii Il t i l I'in " ' < ' " • MI r ' , , , . „ „ „ , „ , . „r the tw lene, methane, and ethane " " " ' . . , ,.,. , . K ) , ,as,vs, water gas and oil gas, »soall«rGARBUK* WATER GAS. tJsnaHy the carbuwtedw*t« ^ uuua .... «i,,..«urli .1 superheater, H M < 1400 c p to fix the gas •• will no liquefy •' BDRBTU) WATER GAS and COAL GAS are called CI The chief difference between carbureted water and coal gas Ues in the difference in the proportion, the constituents Which compose the.u. For example: of n Coal Gas Carbureted Water Gas ^ " Kind of Gas Ethylene and similar hydrocarbons 8.5' 29.0' Carbon monoxide HI. 0' 35.5 Hydrogen 31.0' 12.0^5 Methane and similar hydrocarbons 2.5< 4.5 < Carbon dioxide 2.5 1.5% Oxygen 6.5 9.0' Nitrogen • ! . ( ) ' . Carbureted water gas is heavier than coal gas. It is the gas used in most cities and is the one produce.I at the Champaign plant. Carbureted water gas will be used to heat the Stadium boilers. After leaving the generator and superheater the gas passes through a WASH BOX, where it comes in contact with water which removes some heavy tar. It then passes upward through the wooden grid work of the scrubber where a large part of the remaining tar is removed by impact on the grids. Leaving the scrubber at the top the gas passes down through the CONDENSER where it is cooled by contact with the numerous tubes through which water is kept flowing. This cooling removes further quantities of tar and some partially fixed oils which were not permanently gasified in the gas machine. From the condenser the gas passes to the R E L I E F HOLDER, where it is further cooled, causing more tar and oil to drop out. The relief holder acts as an equalizer on the intermittent flow of gas from the gas machine, thus keeping the rate of flow of gas from this point onward more nearly constant. The relief holder is essentially a hollow cylinder closed at the top and open at the bottom, with the lower edge immersed in water. I t varies in diameter from 40 feet to 80 or 90 feet, according to the amount of gas being made: it also varies in heighl from 10 or L5 feel to those of the telescope type. The water acts as a seal to prevent gas escaping. The inlet and outlet pipes for the gas pi up through the bottom of the pit a short distance above the water level. As gas enters or leaves the »tod with toi U w lun. | bottom w l <•->< » »ha, ^ , pjp % jh ^ ^ ^ ,,,„., „ „ ,, where ,the , , i... I! I id L U ' l I f fhn , l\<; BOX , v !l drated iron 1 "" d HIii< 1 corn coba. The Iron lortu the I sulfide from the tl ng more 1 ide coi I u Ide li ' ability to combine with the nlfide it is removed and exp 1 to tin- air ,, of which 1 eta with it to again forn ^ tV. sulphur. This pn><-. is called "1 Prom the purifier the gas g through a 1 - into the store tank HOLDER as it i ailed. Most holdrs are of the tel< ty] > t in ons or "lifts as they are called. When the first lif ? filled the bottom of it hooka on to the top of the set ond lift carrying with it reral inches of water from the pi! as a iL The same proC holds for tin ( r li; Wa er must be ke] in the ala or gas I Bottom of will 1 ape. Hold vary in /jf liftsize from about 400.000 cu. ft l|Sj-~ Water to 15,000,000 cu. ft. The one in V Champaign holds ".L'o.OOO cu. f The la rg< one in Chicago hoK 10,000,000cu. ft. From the holder the - is pumped into the MAIN ot ZnJ //ft BY GAS PUMPS and delivered to the cu .mer at trom 1 » inches to 5 inches of water pressure. The gas business is a public u t i l i t y : it must sen the public day and night. 365 days per 3 ir. It is a business which deals with every cla \ people. 8 that ' A man who lias a thousand friends Has not a friend to s p a r e ; B u t he who has an enemy. Will find him everywhere." University of Illin 1'rbana. Illinois October 3, 1922. Dr. H I , Lochte claimed a T August the twelfth. us girl as his bride t cylinder the lai p rises or falls. From the relief holder the gas passes to the SHAV- E. W. Wisely, -21, and Mildred Owen of I**** c a r r i e d September the sixteenth. ^ ^ ' ^ rNGS SCRUBBER, entering at the bottom and leaving at the top, The is passing Upward must go through grids upon which are dry shavings. These remove all remaining tar and oil. When the shavings become
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