Use these materials to retrofit ethylene furnaces
This paper considers high carburization resistance, creep rupture strength and cyclic endurance for optimum performance of new conventional or millisecond radiant coils. It is said that a 150 degree F increase in cracking temperature can increase the ethylene output by as much as 40%. While acknowledging the limitations of materials over 2,000 degrees F, it should be possible to meet specific requirements of strength, creep and carburization resistance by proper alloy selection. Improper selection leads to early failures due to cracking, fissuring, bulging and bowing. The cracking furnaces represent about 20% of the total plant cost, and consequently, selection of the tube materials is a critical factor affecting initial cost and ultimate operation costs linked to downtime, maintenance and replacement.
- Research Organization:
- Schillmoller Associates Management Consultants, Houston, TX
- OSTI ID:
- 6284389
- Journal Information:
- Hydrocarbon Process.; (United States), Journal Name: Hydrocarbon Process.; (United States) Vol. 64:9; ISSN HYPRA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
020400* -- Petroleum-- Processing
ALKENES
ALLOYS
CARBURIZATION
CHEMICAL FEEDSTOCKS
COAL TAR OILS
DISTILLATES
EFFICIENCY
ENERGY SOURCES
ENERGY TRANSFER
ETHYLENE
FOSSIL FUELS
FRACTURE PROPERTIES
FUELS
FURNACES
GAS OILS
HARDENING
HEAT TRANSFER
HYDROCARBONS
INDUSTRIAL PLANTS
MATERIAL SUBSTITUTION
MECHANICAL PROPERTIES
NAPHTHA
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PETROLEUM PRODUCTS
PETROLEUM REFINERIES
PHYSICAL PROPERTIES
PRODUCTION
RADIANT HEAT TRANSFER
RETROFITTING
SURFACE HARDENING
SURFACE TREATMENTS
THERMODYNAMIC PROPERTIES