Asphalt coking method

Patent · Tue Aug 11 04:00:00 EDT 1987

OSTI ID:6263288

Bonilla, J A; Elliott, J D

A process is described for treating a heavy hydrocarbon fluid containing asphaltenes comprising: contacting the heavy hydrocarbon fluid with a solvent, wherein the solvent is light naphtha, C/sub 4/ hydrocarbons, C/sub 5/ hydrocarbons, C/sub 6/ hydrocarbons, or a mixture of any of light naphtha and C/sub 4/, C/sub 5/ and C/sub 6/ hydrocarbons, to obtain an asphalt mix, containing asphalt and the solvent, and deasphalted oil mix, containing deasphalted oil and the solvent; feeding the asphalt mix to a delayed coking process to form coke, wherein the asphalt mix is heated by passing the asphalt mix through conduit means in a heater in the delayed coking process. The flow of the asphalt mix through the conduit means is assisted by vaporization in the heater of the solvent in the asphalt mix, and the asphalt mix includes sufficient solvent to provide a residence time of the asphalt mix in the heater adequate for heating the asphalt mix for coking while reducing the formation of coke in the heater; separating the solvent in the deasphalted oil mix from the deasphalted oil mix to yield deasphalted oil; and recovering the deasphalted oil, bypassing the delayed coking process.

• Assignee: Foster Wheeler USA Corp., Livingston, NJ
• Patent Number(s): US 4686027
• OSTI ID: 6263288
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040403* -- Oil Shales & Tar Sands-- Refining
ASPHALTENES
ASPHALTS
BITUMENS
CARBONIZATION
CHEMICAL REACTIONS
COAL TAR OILS
COKE
COKING
DEASPHALTING
DECOMPOSITION
DISTILLATES
ENERGY SOURCES
EVAPORATION
EXTRACTION
FOSSIL FUELS
FUELS
HEATERS
HEATING
HYDROCARBONS
NAPHTHA
OILS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PETROLEUM
PETROLEUM DISTILLATES
PETROLEUM FRACTIONS
PHASE TRANSFORMATIONS
SEPARATION PROCESSES
SOLVENT EXTRACTION
SOLVENTS
TAR
TIME DEPENDENCE