Tyer carburetion process

Abstract

A means for improving prior art combined cycle combustor and / or gasifiers and / or plural thermodynamic cycle gasification systems by introducing and utilizing an auger for the continuous feeding, agitation, tumbling, advancement and discharge of heterogenous carbonaceous fuel. In addition to the aforementioned improvement, I have included provisions for Fontana's water gas shift reaction utilizing refectory embedded down-tubes that convey steam and oxygen into and through the chambers fluidized bed.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application claims subject matter disclosed in a provisional application filed Jan. 14, 2009, Ser. No. 61 / 205,055 entitled “Combined Cycle Gasifier” and a non-provisional application filed Feb. 20, 2009, Ser. No. 12 / 378,864, entitled “Improved Auger Combustor”, and is a continuation of a non-provisional application filed Jan. 19, 2010, Ser. No. 12 / 657,226, entitled “Tyer Carburetion Process.” The benefit under 35 USC 309(e) of the United States provisional application is hereby claimed, as are the priority benefits of the other applications named, the aforementioned applications being hereby incorporated herein by reference.BACKGROUND AND SUMMARY[0002]The invention relates generally to fluidized bed gasifiers and to the production of gasified fuel via and / or in conjunction with the gasification of solid fuels in a fluidized bed gasifier featuring a rotating auger conveyor. More particularly, it deals with improvements to gasifiers th...

AI Technical Summary

Benefits of technology

The Tyer Carburetion Process is a unique gasification system that uses an auger to convey fuel through the gasification chamber. This results in very accurately controlled movement of fuel through the gasification chamber, in comparison to alternative rotary kiln incinerators. The use of an auger to convey fuel through the gasification cycle is an improvement, which allows for control of forced-draft combustion air so as to minimize combustion and gasify nearly all the carbonaceous fuel without complete combustion taking place. The combination of fuel bed auger agitating, stirring with air injection produce precise temperature control. The Tyer Carburetion Process offers a cost-effective approach to clean, efficient gasification, but innovative improvements further strengthen its operations and efficiency. These improvements include a vertically elongated primary combustor / gasifier chamber with an auger that can move up and down allowing for large amounts of fuel input when necessary, and optional independent pressurization of the primary and secondary auger gasifiers to increase fuel processing speed. The use of a lower gasification temperature, a higher convection and heat transfer rate, and control of the duration and direction of the auger cycles create a more efficient and cost-effective system well adapted to meet the needs of modern technological civilization for elimination of waste and production of clean environmentally sound sources of alternative energy.

Problems solved by technology

The current rising costs of such fuels and concerns over the adequacy of their supply in the future has made them a less desirable energy source and has led to an intense investigation of alternative sources of energy.

Unfortunately, most starved-air gasifiers, as originally developed and operated, were not entirely satisfactory in processing the gasifiable elements of the fuel at high throughput while not producing noxious emissions.

This problem resulted, in part, from the use of such gasifiers to burn a wide variety of fuels, including many that were non-homogeneous, such as household municipal solid waste (MSW) and commercial refuse-derived fuel (ROF).

While the pollution problem can be solved to a degree by the utilization of scrubbers and other antipollution devices, such mechanisms are very expensive and their cost may militate against the use of alternative energy sources previously described.

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