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U.S. Department of Energy
Office of Scientific and Technical Information

Method of preheating hydrocarbons for thermal cracking

Patent ·
OSTI ID:6890630
A cracking furnace has a radiant heating zone provided with fuel-fired burners through which a preheated feedstock is passed, combustion gases from the radiant heating zone passing into a convection zone before being discharged from said furnace. The convection zone is provided with heat-exchanger means for preheating said feedstock. The heat-exchanger means in the convection zone is subdivided into a plurality of functionally separated heat-exchanger bundles and the feedstock is passed selectively through the bundles in accordance with the composition of the feedstock.
Assignee:
Linde Ag (Germany, Federal Republic Of) Selas Corp Of America
Patent Number(s):
US 4361478
OSTI ID:
6890630
Country of Publication:
United States
Language:
English