AMERICAN AIR LIQUIDE

with your own low-temperature separation unit. The tremendous ... Our company's first low-temperature hydrocarbon separa- tion plant ... in tonnage qu...
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An Air Liquide low-temperature separation installation at Petroleum Chemicals Inc., Lake Charles, La., U.S.A. Products of the installation include oxygen and nitrogen in tonnage quantities and ammonia synthesis gas.

RECOVER HYDROGEN ECONOMICALLY with your own low-temperature separation unit The tremendous increase in the use of pure hydrogen by the ammonia industry — t h e largest market — and its increasing importance in space rocketry and missiles, have led to a need for even larger supplies. To tap the available rich sources, Air Liquide's low-temperature gas separation process offers many advantages in stripping hydrogen from refinery streams, coke-oven gas, and reformed natural gas, at low cost. This low-temperature process makes available the recovery of such valuable hydrocarbons as methane, ethylene, benzene, and liquefied petroleum gas fractions. Furthermore, it is the only hydrogen recovery process that preserves the thermal and chemical values of these hydrocarbons. Our company's first low-temperature hydrocarbon separation plant went into operation in 1920. Since then, we have designed and built plants throughout the world. Air Liquide units lend themselves to remote operation with minimum supervision. With American Air Liquide you recover hydrogen at lower cost. Today, Air Liquide cryotechniques make possible the safe production, storage and delivery of hydrogen in tonnage quantities to any location. If your problem is hydrogen recovery, purification o r liquefaction, we can design and build units in a wide range of capacities from 25 tons to as high as 350 tons per day. ALL AIR LIQUIDE LOW-TEMPERATURE PLANTS ARE DESIGNED A N D BUILT IN NORTH AMERICA FROM AMERICAN MATERIALS A N D TO NORTH AMERICAN STANDARDS.

The following types of plants, designed and built by Air Liquide, are in operation throughout the world: • • • • • • • • •

For complete information write or call AMERICAN

A I R LIQUIDE ENGINEERING & CONSTRUCTION DIVISION OLDEST IN EXPERIENCE

INDUSTRIAL AND ENGINEERING CHEMISTRY

NEWEST IN DESIGN

Chrysler Building, 4 0 5 Lexington Ave. N e w York 17, N.Y. Telephone: YUkon 6-6544 In C a n a d a : L'AIR LIQUIDE, 1 2 1 0 Sherbrooke St. W . , M o n t r e a l , Q u e b e c . Telephone: Victor 2 - 5 4 3 1

Circle No. 51 on Readers' Service Card 108 A

Air Separation — oxygen, nitrogen, etc. Tonnage Oxygen and Nitrogen (Gas and Liquid) Rare Gases Recovery C0 = Purification Methane Purification Natural Gas Liquefaction · Hydrogen Liquefaction Coke-Oven Gas Separation · Helium Recovery Refinery Gas Separation · Pure CO Production Heavy Water for Atomic Reactors