Process for thermal cracking a heavy hydrocarbon

Patent · Tue Dec 25 04:00:00 EST 1979

OSTI ID:5390171

Taciuk, W

There is provided an apparatus comprising rotating inner and outer concentric tubes. The inner tube provides a vapor zone and the annular space between the tubes provides a combustion zone. Hot particulate solids, such as sand, are advanced along an endless path through the vapor zone, back through the combustion zone and back into the vapor zone. In the vapor zone, oil is sprayed on the hot solids. The mixture is mixed and cascaded to obtain heat transfer from the solids to the oil, thereby generating hydrocarbon vapors and coke deposition on the solids. The vapors are removed by suction from the vapor zone. The coked solids are transferred into the combustion zone and cascaded and lifted and dropped therein to mix with added oxygen. Coke is burned to heat the solids which are then returned to the vapor zone. The vapors generated in the combustion zone are removed by suction. Segregation of the atmospheres in the two zones is achieved by a combination of maintaining equal pressures in the zones and using the solids, being transferred from one zone to the other, to block gas flow.

• Assignee: Alberta Oil Sands Technology and Research Authority
• Patent Number(s): US 4180455
• OSTI ID: 5390171
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040402* -- Oil Shales & Tar Sands-- Surface Methods
BITUMENS
BITUMINOUS MATERIALS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROCARBONS
OIL SANDS
OIL SHALES
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
PYROLYSIS
RECOVERY
TAR
THERMAL CRACKING
THERMOCHEMICAL PROCESSES