Novel concept development of an internal recirculation catalyst for mild gasification
The Institute of Gas Technology (IGT) has conducted a fundamental research program to evaluate a novel process concept for mild coal gasification that uses a semivolatile'' internal recirculation catalyst, which would remain in the gasifier because its vapor pressure is such that it remains in the vapor state in the hotter (char exit) part of the reactor, but condenses in the colder (coal inlet) section. Work was divided into two tasks: Task 1: Laboratory-Scale Tests and Task 2: Bench-Scale Tests. Task 1 was to be conducted using an existing microscale pyrolysis-gas chromatograph-mass spectrometer (PY-GC-MS) method, in order to obtain detailed information on the effects of the selected internal recirculation catalysts, cesium hydroxide and ZnCl{sub 2}, on mild gasification products. An Illinois No. 6 high-volatile bituminous, a Wyodak subbituminous, and a North Dakota lignite, were tested. The remainder of the study was directed towards the investigation of chemical pretreatment methods for mild gasification. Coal pretreated with methanol, ammonia, and n-butylamine was studied in the IFFR, along with untreated samples. The experiments also investigated the effect of CO{sub 2} as a mild gasification gaseous medium, in comparison to inert gases, He and N{sub 2}. A total of nine IFFR experiments were conducted. Task 2 was not undertaken. 33 refs., 21 figs., 49 tabs.
- Research Organization:
- Institute of Gas Technology, Chicago, IL (USA)
- Sponsoring Organization:
- DOE/FE
- DOE Contract Number:
- AC21-86MC23057
- OSTI ID:
- 5280185
- Report Number(s):
- DOE/MC/23057-2739; ON: DE89011703
- Country of Publication:
- United States
- Language:
- English
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Novel concept development of an internal recirculation catalyst for mild gasification
Novel concept development of an internal recirculation catalyst for mild gasification. Progress report, June 1, 1988--August 31, 1988
Related Subjects
010404* -- Coal
Lignite
& Peat-- Gasification
ALCOHOLS
ALKALI METAL COMPOUNDS
AMINES
AMMONIA
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CATALYSTS
CATALYTIC EFFECTS
CESIUM COMPOUNDS
CESIUM HYDROXIDES
CHALCOGENIDES
CHARS
CHEMICAL REACTIONS
CHLORIDES
CHLORINE COMPOUNDS
COAL
COAL GASIFICATION
COMPARATIVE EVALUATIONS
DEVOLATILIZATION
DOCUMENT TYPES
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASIFICATION
HALIDES
HALOGEN COMPOUNDS
HYDRIDES
HYDROGEN COMPOUNDS
HYDROXIDES
HYDROXY COMPOUNDS
MATERIALS
METHANOL
MOLECULAR WEIGHT
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
PROGRESS REPORT
PYROLYSIS PRODUCTS
TESTING
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES
VAPOR PRESSURE
VOLATILITY
WATER
YIELDS
ZINC CHLORIDES
ZINC COMPOUNDS
ZINC HALIDES