Ikelic - Alliance Digital Repository

GENERAL
IGT oxygen-blown system based on the evalua
tion by Katofsky (1993).
The MTCI gasifier costs are also relatively low
because inexpensive material can be used at the
low peak temperatures. Furthermore, because
there is no secondary reformer and because feed
preparation costs are lower (less drying
required), the MTCI system has the lowest capital
requirements (Table 2).
IGCC Applications
For the IGCC case, the MTCI steam reformer sys
tem should be applicable for retrofitting to many
natural gas-based combined cycle power genera
tion or cogeneration facilities from small to
Conversion Technology
TABLE 2
medium sizes (1 to 50 megawatts). For example,
the MTCI steam reformer can produce medium-
BTU gas from biomass residues from a paper mill
including sludge rejects that are currently
landfilled.
Figure 2 (next page) depicts one case for IGCC
application of the MTCI steam reformer.
In future developments, MTCI anticipates pres
surized operation of the primary steam reformer
and the pulse combustor. The hot flue gas from
the pressurized pulse combustor may be sent to
a turbo-expander for power recovery. In this
way, the "topping
ESTIMATED PRODUCTION COSTS
FOR METHANOL FROM BIOMASS
Dry Tonnes per Day, Feedstock
Tonnes per Day, Methanol Output
Capital Costs (106$)
Feed Preparation
Gasifier
Oxygen Plant
Reformer Feed Compressor
Reformer, Secondary
Vesseis/Exchangers/Pumps/Filters
CO, Removal
Methanol Synthesis & Purification
Utilities/Auxiliaries
Contingencies
Start-up
Operating
and Other Costs
Costs (106
$/hr)
Variable Costs (feed, etc.)
Fixed Costs (labor, OH, etc.)
Levelized Costs ($/liter)
####
1-10
cycle"
becomes the supply of
endothermic heat of the steam-carbon reactors.
Ifil
MTCI
1,650 1,650
794 868
291.4 185.6
16.44 13.69
28.23 15.16
41.67 0.00
0.00 12.4
17.70 0.00
9.40 9.40
20.20 15.38
41.42 43.93
43.77 27.49
43.77 27.49
28.79 20.66
37.70 34.36
24.79 25.08
12.91 9.28
0.26 0.18
THE SYNTHETIC FUELS REPORT, JANUARY 1995