Tampella Power Corporation

Song Wu

Michael G Alliston

Brian T Sinn

Matti Rautanen

Samuel G Probst

Brian G Martin

Christina M Edvardsson

Kulwarn S Parmar

Kevin Lato

Leonid S Blokh

A method and system for controlling reheater steam temperature is disclosed. The method can be carried out by selectively adjusting the flow of superheated steam into a superheater positioned between two reheater sections in the convection pass of a carbonaceous fuel boiler system.

Method and system for reheat temperature control

A method and system for recycling a sulfur sorbent present in the combustion residue of a circulating, fluidized bed, fossil-fuel combustor is disclosed. The method can comprise the steps of, adding water to the combustion residue, classifying the combustion residue into a fuel ash portion and a hydrated sorbent portion, and returning the hydrated sorbent portion to the circulating, fluidized bed, fossil-fuel combustor.

Method and system for recycling sorbent in a fluidized bed combustor

A biased air distribution grid is used to promote solids entrainment and dense bed internal mixing for the bed material of a fluidized bed reactor. The air distribution grid distributes air at a high velocity zone having a velocity ranging from 11 to 50 feet per second and a low velocity zone having a velocity ranging from 3 to 10 feet per second. The high velocity zone and the low velocity zone provide an improved lateral mixing for the reactor.

Solids circulation enhancing air distribution grid

A cyclone separator for a solids-laden process gas from a reactor also provides a pressure seal for the reactor. The cyclone includes a main housing with a longitudinal axis. The housing is made of a membrane wall construction having a plurality of tubes arranged around the axis and encased within membrane wall panels. A portion of the tubes are bent outwardly to form an inlet which communicates with the main housing for receiving the solids-laden process gas from the boiler. Solids are separated from the solids-laden process gas as they swirl together in the main housing of the cyclone separator. A partition wall is disposed at the lower section of the main housing around the longitudinal axis for defining an outer chamber and an inner chamber adjacent to the outer chamber. Gas is provided to the outer and inner chambers for creating fluidized beds of the solids in the outer and inner chambers. Solids are passed from the inner chamber to the outer chamber through an underflow port in the partition wall. Solids exit the main housing from an overflow port which communicates with the reactor.

Growing community of inventors

Montoursville, PA, United States of America

Song Wu