Process for the thermal cracking of hydrocarbons

Patent · Tue Jan 23 04:00:00 EST 1979

OSTI ID:6316591

Kamm, G R; Milks, D; Kearns, J D; Britt, H I; Khavarian, C R

In a process for the thermal cracking of hydrocarbons by the introduction of liquid petroleum feedstock in atomized form into a stream of hot combustion products formed by the combustion of fuel and oxidant in successive burner and mixing zone, constricting throat zone, a velocity acceleration diffuser zone and secondary cracking and reaction zone along the path of hot combustion product stream flow, an improvement is disclosed which comprises: effecting initial mixing, vaporization and cracking of said atomized liquid petroleum feedstock in said stream of hot combustion products in said burner and mixing zone maintained at subsonic velocity flow; effecting substantially complete mixing and vaporization in said constricting throat zone wherein said stream is maintained, at exit, at sonic velocity flow; passing said stream through a velocity acceleration diffuser zone maintained at supersonic velocity flow; passing said stream through a shock region produced by cross-sectional expansion of a diffuser zone; and effecting a final thermal cracking conversion in said stream in a subsonic velocity additional cracking reaction zone before quenching of said-stream.

• Assignee: Union Carbide Corp.
• Patent Number(s): US 4136015
• OSTI ID: 6316591
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
04 OIL SHALES AND TAR SANDS
040400 -- Oil Shales & Tar Sands-- Oil Production
Recovery
& Refining
CHEMICAL REACTIONS
COMBUSTION PRODUCTS
CRACKING
DECOMPOSITION
HYDROCARBONS
MIXING
ORGANIC COMPOUNDS
PYROLYSIS
THERMAL CRACKING
THERMOCHEMICAL PROCESSES