Literature and data review and compilation. Final topical report. [Mathematical codes describing fluidized bed gasifiers, CHEMFLUB and FLAG; 215 references]

Technical Report · Fri Jun 01 04:00:00 EDT 1984

OSTI ID:6336583

Matulevicius, E S; Golan, L P; Heard, W B; Bhagat, P M; Segev, A

The purpose of this review is to provide a database for the evaluation and validation of mathematical codes describing fluidized bed gasifiers. This review was prompted by the need to evaluate two numerical codes, CHEMFLUB and FLAG, developed under Department of Energy sponsorship. Because of fundamental nature of the codes, they may possibly be used as a potential method for minimizing the cost and time required to develop and commercialize fluidized bed gasifiers. In order to have the confidence that these codes can accurately predict fluidization and gasification phenonmena, a logical and systematic comparison of the codes against key correlations is required. This review contains the necessary data and correlations for this evaluation. Previously developed computer models of fluidized bed gasifiers are empirical in nature. Hence, they are useful only in regions where the assumptions are valid. On the other hand, CHEMFLUB and FLAG begin with a fundamental description of the fluid mechanics, chemistry and heat transfer relationships. Because of this, there is promise that these models could be used in areas where experimental information is not readily available, to address issues of scale-up, and to examine transient phenomena often associated with operating and safety issues. In order to have confidence that the models are able to predict gasifier behavior, it is necessary that key physical parameters be efficiently and accurately calculated. This review divides the database required into two major areas, gasification kinetics, and fluidization behavior. The review is not intended to critically analyze all the information in the literature. Rather, it is a selective review of the literature, tailored to provide the necessary data to evaluate and validate the codes. 215 references.

• Research Organization: BDM Corp., McLean, VA (USA); Exxon Research and Engineering Co., Florham Park, NJ (USA)
• DOE Contract Number: AC21-82MC19265
• OSTI ID: 6336583
• Report Number(s): DOE/MC/19265-1673; ON: DE85001969
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010404* -- Coal
Lignite
& Peat-- Gasification
CHEMICAL REACTION KINETICS
COAL GASIFICATION
COMPUTER CODES
COMPUTERIZED SIMULATION
CORRELATIONS
DOCUMENT TYPES
ENERGY TRANSFER
EVALUATION
FLUID MECHANICS
FLUIDIZATION
FLUIDIZED BED
GASIFICATION
HEAT TRANSFER
KINETICS
MATHEMATICAL MODELS
MECHANICS
REACTION KINETICS
REVIEWS
SIMULATION
THERMOCHEMICAL PROCESSES