Engineering support services for the DOE/GRI coal-gasification research program. Evaluation of the data base for single-stage gasification of peat. [IGT 6 inch, single stage, fluidized bed (not PEATGAS)]
Kellogg has reviewed the data base generated by IGT in the 6 inch PDU for the single stage fluidized bed gasification of peat. Kellogg's central finding is that the existing data base should be expanded by further testing in the PDU, after necessary modifications, to investigate further the effects of operating parameters within the ranges of interest. The existing data base consists of 20 PDU runs. Kellogg has concentrated on the Minnesota peat data base, since an insufficient number of runs exist for Maine and North Carolina peats to establish any valid trends. Consequently, the evaluation presented concerns only the Minnesota peat data base with respect to ranges of operating parameters studied, the criteria for good fluidized-bed operation and the effects of the key operating parameters on the performance. In Kellogg's opinion the existing data base demonstrates that: gasification of peat at 90+% carbon conversion is possible in a single stage fluidized bed reactor; the most significant operating parameters have been identified; the single stage fluidized bed peat gasifier has merit because of simplicity of operation, near-zero production of liquids and potential of operation without steam and at low pressure. However, Kellogg notes the following shortcomings:relatively small number of experimental runs and lack of data at certain levels of operating parameters studied; sintering occurred in 35% of the runs; in all the 20 test runs, fines losses exceeded in 5% of the feed and for the Minnesota peat data base, fines losses averaged 12.8%; use of large amounts of fluidizing gas (in this case N/sub 2/), which does not reflect commercial operation; and lack of data with higher peat feed moisture content. Thus, in Kellogg's opinion, considerable advantage is to be gained by expanding the existing data base and lists its specific recommendations.
- Research Organization:
- Kellogg (M.W.) Co., Houston, TX (USA)
- DOE Contract Number:
- AC01-78ET10324
- OSTI ID:
- 5740077
- Report Number(s):
- DOE/ET/10324-T57; FE-2778-62; ON: DE83010947
- Resource Relation:
- Other Information: Portions are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Single-stage fluidized-bed gasification. [Peat]
Engineering support services for the DOE/GRI coal gasification research program. Quarterly technical progress report for the period January-March 1981
Related Subjects
COAL GASIFICATION
EVALUATION
INFORMATION
PROCESS DEVELOPMENT UNITS
COAL FINES
DATA BASE MANAGEMENT
EXPERIMENTAL DATA
LOSSES
PEAT
RECOMMENDATIONS
DATA
ENERGY SOURCES
FOSSIL FUELS
FUELS
FUNCTIONAL MODELS
GASIFICATION
MANAGEMENT
NUMERICAL DATA
ORGANIC MATTER
THERMOCHEMICAL PROCESSES
010404* - Coal
Lignite
& Peat- Gasification