- Email: [email protected]
4521844 Manipulator control system and apparatus for decontaminating nuclear steam generators
V1
New
one shaft have equal lengths, but the prongs of adjacent shafts are of different lengths to encourage a serpentine circulation path for the mixture during stirring. Successive prongs are spaced at opposite angular directions so that alternate prongs along the shaft have uniform angular spacing.
Patents
the streams. By treating only a portion of the flue gas using an NH3/NOx ratio of unity, the amount of catalyst required is reduced while the residual NOx and NH3 contents of the recombined streams is controlled to desired levels.
4521389 4521311 ACTIVATED SLUDGE SYSTEM WITH INTEGRATED REGENERATOR Uwe Fuchs, Alfre Wildmoser, Munich, Federal Republic Of Germany assigned to Linde Aktiengeseilschaft
n
.
PROCESS OF CONTROLLING NOX IN FCC FLUE GAS IN WHICH AN SO2 OXIDATION PROMOTOR IS USED William A Blanton, William Dimpel assigned to Chevron Research Company NOx in flue gas from a regenerator in which an SO2 oxidation promoter is present is controlled by mixing ammonia with flue gas and passing the mixture through a combustion zone.
•
.. %
In the treatment of wastewater, the mixture of wastewater and the sludge is transported through a treatment zone, and then through a filter zone containing a bed of support particles, e.g., particles of polyurethane foam, to deposit the biomass onto the support particles. The loaded support particles are subsequently regenerated within the filter zone by means of a regenerating means in the same area as the filter zone, e.g., by strong aeration or by being compressed between press-rolls, whereby the system requires neither additional land for regeneration of the support particles nor a secondary settling tank.
4521844 MANIPULATOR CONTROL SYSTEM AND APPARATUS FOR DECONTAMINATING NUCLEAR STEAM GENERATORS Robert H Sturges, Joseph Birsa, Paul Dawson, Roger Byford assigned to Westinghouse Electric Corp
•
i
4521388 NOX REDUCTION IN FLUE GAS Norman Samish, Jack Pohlenz assigned to Shell California Production Inc A selective catalytic reduction process (SCR) for reducing the oxides of nitrogen (NOx) content of a furnace flue gas. The process comprises splitting the flue gas into two streams, treating one of the streams with an SCR process with the same amount of NH3 as NOx, and then reeombining
A manipulator control system uses a microprocessor to compute appropriate control parameters in order to maintain constant tangential velocity of a spray nozzle in relation to the inside surface of a spherical portion of a nuclear steam generator. The microprocessor also computes, in one of the three modes of operation, of the control system, appropriate control parameters for maintaining a predetermined distance between the nozzle and the center of the spherical enclosure.
New
one shaft have equal lengths, but the prongs of adjacent shafts are of different lengths to encourage a serpentine circulation path for the mixture during stirring. Successive prongs are spaced at opposite angular directions so that alternate prongs along the shaft have uniform angular spacing.
Patents
the streams. By treating only a portion of the flue gas using an NH3/NOx ratio of unity, the amount of catalyst required is reduced while the residual NOx and NH3 contents of the recombined streams is controlled to desired levels.
4521389 4521311 ACTIVATED SLUDGE SYSTEM WITH INTEGRATED REGENERATOR Uwe Fuchs, Alfre Wildmoser, Munich, Federal Republic Of Germany assigned to Linde Aktiengeseilschaft
n
.
PROCESS OF CONTROLLING NOX IN FCC FLUE GAS IN WHICH AN SO2 OXIDATION PROMOTOR IS USED William A Blanton, William Dimpel assigned to Chevron Research Company NOx in flue gas from a regenerator in which an SO2 oxidation promoter is present is controlled by mixing ammonia with flue gas and passing the mixture through a combustion zone.
•
.. %
In the treatment of wastewater, the mixture of wastewater and the sludge is transported through a treatment zone, and then through a filter zone containing a bed of support particles, e.g., particles of polyurethane foam, to deposit the biomass onto the support particles. The loaded support particles are subsequently regenerated within the filter zone by means of a regenerating means in the same area as the filter zone, e.g., by strong aeration or by being compressed between press-rolls, whereby the system requires neither additional land for regeneration of the support particles nor a secondary settling tank.
4521844 MANIPULATOR CONTROL SYSTEM AND APPARATUS FOR DECONTAMINATING NUCLEAR STEAM GENERATORS Robert H Sturges, Joseph Birsa, Paul Dawson, Roger Byford assigned to Westinghouse Electric Corp
•
i
4521388 NOX REDUCTION IN FLUE GAS Norman Samish, Jack Pohlenz assigned to Shell California Production Inc A selective catalytic reduction process (SCR) for reducing the oxides of nitrogen (NOx) content of a furnace flue gas. The process comprises splitting the flue gas into two streams, treating one of the streams with an SCR process with the same amount of NH3 as NOx, and then reeombining
A manipulator control system uses a microprocessor to compute appropriate control parameters in order to maintain constant tangential velocity of a spray nozzle in relation to the inside surface of a spherical portion of a nuclear steam generator. The microprocessor also computes, in one of the three modes of operation, of the control system, appropriate control parameters for maintaining a predetermined distance between the nozzle and the center of the spherical enclosure.