EP 0455504 A1 19911106 - Coking decanted oil and other heavy oils to produce a superior quality of needle-grade coke.
Title (en)
Coking decanted oil and other heavy oils to produce a superior quality of needle-grade coke.
Title (de)
Verkokung von Dekantieröl und anderen Schwerölen zur Herstellung von Nadelkoks höherer Qualität.
Title (fr)
Cokéfaction d'huiles de décantage et d'autres huiles lourdes pour la production d'un coke aciculaire de qualité supérieure.
Publication
Application
Priority
US 51905690 A 19900504
Abstract (en)
A process for the production of needle-grade coke having a low coefficient of thermal expansion (CTE) value involves coking a petroleum feedstock in a coking drum at temperature below the threshold temperature where CTE values for the coke rapidly increase for a time sufficient to obtain a relatively low CTE coke. The petroleum feedstock can be decanted oil or heavy cycle oil. The threshold temperature can be from about 400 DEG C to 600 DEG C. A heated vapor stream is introduced into the drum to maintain the coke at a temperature sufficient for coking but below the threshold temperature.
IPC 1-7
IPC 8 full level
C10B 55/00 (2006.01)
CPC (source: EP)
C10B 55/00 (2013.01)
Citation (search report)
- [A] US 4822479 A 19890418 - FU TA-WEI [US], et al
- [AD] US 4547284 A 19851015 - SZE MORGAN C [US], et al
Designated contracting state (EPC)
AT BE CH DE DK ES FR GB GR IT LI LU NL SE
DOCDB simple family (publication)
EP 0455504 A1 19911106; EP 0455504 B1 19950329; AT E120479 T1 19950415; CA 2041436 A1 19911105; DE 69108440 D1 19950504; DE 69108440 T2 19950727
DOCDB simple family (application)
EP 91304022 A 19910503; AT 91304022 T 19910503; CA 2041436 A 19910429; DE 69108440 T 19910503