Output Explorer

Figure 2
400 t/d (as-received lignite). The unit is
capable of handling feedstocks with up to
SCGP performance
35% moisture, 30% ash and 4% sulphur
Effect of different feedstocks
at design gas production rates.
Treated product gas will contain
approximately 99% hydrogen and
carbon monoxide (nitrogen-free basis),
less than 160 ppm sulphur compounds,
Dry gas
Texas
Rheinbraun Illinois
W. Virginia
Fluid coke
and other minor trace components
composition
ignite
brown coal
No. 6
(Pittsburgh
(tar sands)
Actual nitrogen content in the product
(% volume)
seam
o/c
gas will depend on whether nitrogen or
another gas such as recycled product
gas or carbon monoxide is used as coal
H ,
32.4
28.6
30.5
31.7
22.3
feed transport gas.
CO
61.8
64.5
65 .1
64.3
70.9
The Shell Deer Park Manufacturing
Complex was chosen as the SCGP-1
CO,
4.6
6.1
2.0
2.0
3.7
ocation primarily because it can make
CH
use of the product gas. Also, some of the
HS-COS
0.3
0.1
1.5
1.1
2.2
utility requirements can be met by existing
acilities.
N + A
0.9
0.7
0.9
1.0
0.9
Oxygen and nitrogen will be
Cold gas
81
78
81
81
80
purchased. Slag and fly slag produced
efficiency*
will be used for road building and other
applications, while acid gas will be sent to
the Deer Park Complex sulphur plant.
Stripped effluent and storm water will be
sent to the Complex effluent treating
system.
*Energy recovered from the coal in the synthesis gas
Slip stream units
Most of the ash in the coal is transformed
into a vitreous non-leachable solid which
At approximately one-fifth the
The SCGP-1 acid gas removal system is
anticipated initial commercial module
designed to meet very strict environmental
s suitable as a construction material.
regulations. A gas treating slip stream unit
Process water can be readily cleaned and
size, SCGP-1 is the most efficient route to
commercialisation of the process. It is
will be installed and operated as part of
discharged.
much less costly to construct and operate
the overall programme. Effluent water slip
than a full-scale unit and provides the
stream units will also be included.
opportunity to test process optimisations
Properly designed slip stream units
operating on SCGP-1 product streams
Demonstration
more readily. The maximum scale-up
factor of five for any given piece of
are cost-effective methods of testing
equipment is well within Shell capabilities,
options and acquiring data necessary to
plant
the lower limit on size was actually set by a
design commercial plants with varying
requirement to demonstrate equipment
environmental constraints and product
and configurations that would be
gas uses.
employed commercially. Many of the
components will require little or no scaling.
Participants
The SCGP-1 demonstration plant in
Combustion Engineering's subsidiary
Houston will confirm equipment life and
The unit will include coal receiving and
preparation facilities, a high-pressure
Lummus Crest and the Electric Power
the scale-up information necessary for
commercial design. Environmental design
gasifier with high-temperature energy
Research Institute (EPRI) are jointly
participating with Shell companies in the
data for potential commercial feedstocks
recovery, solids removal, and gas and
water treating to provide both clean
design, construction and operation of
will also be acquired. SCGP-1 includes
medium- BTU gas for power generation
SCGP-1. Lummus Crest will provide
equipment for demonstrating several
process optimisations. These will increase
and high-value steam. The unit is
scheduled for start-up in the first half of
engineering design and procurement
stream factor and system reliability, and
1987.
services. EPRI will provide an electric utility
industry perspective. Shell Internationale
reduce capital and operating costs.
A final objective for SCGP-1 is to move
SCGP-1 is designed to gasify feeds
Petroleum, Shell Internationale Research,
from lignites to bituminous coals. In
Deutsche Shell, Shell Oil and Shell
further along the experience curve, in part
by developing an experienced operating
principle, other feeds, such as petroleum
team and extensive operating know-how,
coke, could also be gasified. Feeds will
Development provided the process
normally be received by train or truck and
design and much of the engineering
which will be readily transferable to the
gasified at rates of about 250 t/d
design information, and will operate and
first commercial plant.
(as-received Illinois high sulphur coal) to
manage the unit and experimental
programme
Source: https://www.industrydocuments.ucsf.edu/docs/fgfl0228

Answer the question using only the OCR text from a single document page. Return only the answer, with no explanation. Preserve the answer wording from the OCR text when possible.