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Ikelic - Alliance Digital Repository

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COAL<br />

v.v<br />

C<br />

SOURCE: DOE<br />

Solid<br />

Waste<br />

(LASH)<br />

Coal&<br />

Limestone<br />

Handling<br />

^<br />

\i<br />

ator<br />

FIGURE 2<br />

PINON PINE PROCESS DIAGRAM<br />

Gasifier<br />

sorbent which removes most of the sulfur from<br />

the produced gas. A ceramic barrier filter<br />

removes all but a trace of particulates. Because<br />

the fuel gas is cleaned at high temperature, ther<br />

mal inefficiencies associated with cold gas<br />

cleanup are avoided. The cleaned coal gas is<br />

burned in a gas turbine which produces about<br />

60 percent of the plant power output. The rest of<br />

the power is produced in a steam-turbine genera<br />

tor operated on steam generated from gas tur<br />

bine exhaust.<br />

The gasifier vessel is expected to be ap<br />

proximately 15 feet in diameter and 74 feet in<br />

length, with a shipping weight of 1 70 tons. Desul<br />

furization will be accomplished by a combination<br />

of limestone fed to the gasifier and treatment of<br />

Steam to HRSG<br />

1<br />

vf<br />

Cyclone<br />

On HotGu f*><br />

U| 4^Cpola;j_-H Cleanup<br />

Air<br />

Particulate<br />

and Sulfur<br />

Removal<br />

p^ i^ir^e^<br />

__ Siem<br />

Water I Genenlor<br />

Steam<br />

4-10<br />

Steam<br />

Stack<br />

Alternate Fuels:<br />

Natural Gas<br />

Propane<br />

Geo.<br />

Geo.<br />

r<br />

the gas in desulfurization vessels using<br />

based sulfur sorbent such as Phillips'<br />

Z-Sorb III.<br />

43 MW<br />

a zinc-<br />

proprietary<br />

The General Electric 6FA combustion turbine<br />

selected is a scaled model of GE's 7FA machine.<br />

The 6FA with its 2,350F firing temperature and<br />

1,100F exhaust temperature enables SPPC to<br />

use a 950F/950 psia steam cycle design. This<br />

Improves overall plant cycle efficiency sig<br />

nificantly.<br />

Cost and Schedule<br />

The project is currently scheduled to start up late<br />

in 1996, and be in commercial operation by<br />

early<br />

1997. The total project cost is ap-<br />

THE SYNTHETIC FUELS REPORT, JANUARY 1995

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