Hydrocarbon steam reforming using series steam superheaters

Patent · Tue Oct 08 04:00:00 EDT 1985

OSTI ID:5865661

Osman, R M

In a process for steam reforming of a hydrocarbon gas feedstream wherein: the hydrocarbon gas feedstream is partially reformed at elevated temperatures in indirect heat exchange with hot combustion gases in a direct fired primary reforming furnace provided with a convection section for recovery of excess heat from said combustion gases; and the partially reformed feedstream is then further reformed in the presence of an oxygen-containing gas and steam in a secondary reformer to form a secondary reformer gaseous effluent; the improvement which comprises recovering waste heat from said secondary reformer effluent gas and from said primary reforming combustion products by heating a high pressure saturated steam in a first steam superheating zone by indirect heat exchange with at least a portion of said secondary reformer effluent gas to form a first superheated steam stream; and further heating said first superheated steam in a second steam superheating zone by indirect heat exchange with at least a portion of said primary reformer hot combustion gases for form a second superheated steam stream.

• Assignee: IFI; EDB-86-099915
• Patent Number(s): US 4545976
• OSTI ID: 5865661
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400* -- Petroleum-- Processing
CHEMICAL REACTIONS
COMBUSTION PRODUCTS
CONVECTION
ENERGY RECOVERY
ENERGY TRANSFER
FURNACES
HEAT RECOVERY
HEAT TRANSFER
HEATERS
HEATING
HYDROCARBONS
MASS TRANSFER
ORGANIC COMPOUNDS
RECOVERY
REFORMER PROCESSES
STEAM
STEAM REFORMER PROCESSES
SUPERHEATING
WASTE HEAT UTILIZATION
WASTE PRODUCT UTILIZATION