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Union Oil's heat exchangers with aluminum and steel shells, placed in service in January, 1958. The aluminum shell and tubes are still in service under conditions which destroyed the steel in 30 days. Shell side handles 85% steam, 9% cyanide, 4% hydrogen sulfide, 2% water at 26O°-280° F. Tube side ca i s Marley cooling tower water.

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T h e Finest Products M a d e with Aluminum

18 C & E N SE.PT. 2 9, 19 58

Aluminum

REYNOLDS ALUMINUM

Heat Exchangers Last Longer...

up to 7 times longer for Union Oil Union Oil Company of California is converting several o f its shell and tube heat exchangers— and parts of these exchangers—to Reynolds Aluminum. Main reason: aluminum lasts longer i n many heat exchanger applications, up to 7 times longer.

For example, in Union's heat exchangers which handle waste water from a refinery cat tower, steel condenser tubes lasted only a few weeks iseiore corrosion made then* useless. Aluminum tubes, now in the same service, last 7 times as long handling the same corrosive fluids.

In the same application, steel tube sheet and baffles lasted about 5 months before they had to beireplaced. Union engineers replaced these with aluminum and installed aluminum bundles in January, 1957. They are still in service.

The bare tubes of Union's heat exchangers are Reynolds Aluminum alloy 3003-H14, and the tube sheets and baffles are 6061-T6.

Union Oil's aluminum heat exchangers

really save in service cost. On a dollars per square foot of heat transfer area per year base, aluminum units are nearly δ times lower in cost than the same units with seamless mild steel. This does not include handling costs, which favor lightweight aluminum.

Initial cost, incidentally, is virtually the same for aluminum and steel in these uses.

Heat exchangers are just one of many places Reynolds Aluminum is cutting costs in this industry. Its resistance to corrosion, its passiv­ity, light weight and strength make aluminum the logical material for tanks, vessels, jacket­ing, piping, tubing, and other applications where corrosives must be handled or stored.

To learn how aluminum can cut your costs, write the people who know aluminum and its uses in the chemical and petroleum industry— Reynolds Metals Company, P.O. Box 2346-CK, Richmond 18, Virginia. Or contact your local Reynolds branch office, listed under "Alumi­num" in the classified phone book.

Write today for Reynolds free bulletins— < vAluminum for Heat Exchangers" and "Keys to Corrosion".

REYNOLDS ALUMINUM

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