Turbine exhaust fed low NO/sub x/ staged combustor for teor power and steam generation with turbine exhaust bypass to the convection stage

Patent · Tue Nov 17 04:00:00 EST 1987

OSTI ID:5751834

Moreno, F E; Hartman, C D

In a low NO/sub x/ method for generating power and steam for thermally enhanced oil recovery, this patent describes the steps of: firing a gas turbine with a nitrogen-bearing crude oil and air to produce power and hot turbine exhaust gas; feeding a first portion of the hot turbine exhaust gas together with a nitrogen bearing crude oil into a primary combustion chamber of a staged combustor for burning the crude oil under fuel-rich conditions to produce hot exhaust gaseous combustion products exiting the primary combustion chamber; feeding a second portion of the hot turbine exhaust gas with the hot exhaust gases into a second combustion chamber lined with water-filled boiler tubes to complete the combustion of the crude oil fed and to produce steam in the boiler tubes and to produce a stream of hot exhaust gas exiting the second combustion chamber; feeding a third portion of the hot turbine exhaust gas with the hot exhaust gas into a convection chamber containing finned water-filled boiler pipes for transfer of heat from the turbine exhaust and the exhaust of the second combustion chamber to the water in the boiler pipes to generate steam in the finned boiler pipes; and varying the flow rate of the first portion of the turbine exhaust inversely with the flow rate of the third portion of the exhaust to vary the rate of steam generation, whereby steam is efficiently generated over a wider range of steam generation rates.

• Assignee: PruTech II, San Jose, CA
• Patent Number(s): US 4706612
• OSTI ID: 5751834
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020300* -- Petroleum-- Drilling & Production
020900 -- Petroleum-- Environmental Aspects
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
BOILERS
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION
COMBUSTORS
EFFICIENCY
ENERGY SOURCES
ENERGY TRANSFER
ENHANCED RECOVERY
EXHAUST GASES
FLUID INJECTION
FLUIDS
FOSSIL FUELS
FUELS
GAS TURBINES
GASEOUS WASTES
GASES
HEAT TRANSFER
MACHINERY
NITROGEN COMPOUNDS
NITROGEN OXIDES
OIL WELLS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PETROLEUM
POLLUTION ABATEMENT
RECOVERY
STEAM GENERATION
STEAM GENERATORS
STEAM INJECTION
STIMULATION
THERMAL EFFICIENCY
THERMAL RECOVERY
THERMOCHEMICAL PROCESSES
TURBINES
TURBOMACHINERY
VAPOR GENERATORS
WASTES
WELL STIMULATION
WELLS