Industrial application of fluidized bed combustion, category III indirect fired heaters. Quarterly technical report No. 7, January--March 1978

Technical Report · Sat Jul 01 00:00:00 EDT 1978

DOI:https://doi.org/10.2172/6437058· OSTI ID:6437058

A program is underway to evaluate the technical and economic potential for the application of fluidized bed combustion to refinery and petrochemical plant indirect fired process heaters. The strategy of the program is to build on available boiler oriented FBC technology. Two pertinent areas not being addressed in the on-going boiler oriented programs and which are being investigated here concern the effects of larger tube size and hydrocarbon coking. Phase I of the program consists of the design, construction, and operation of three laboratory facilities to carry out these studies. Fluidized bed performance studies, including bed mixing and density measurement, have been completed on six alternative tube bundle configurations ranging from 2-inch to 6-inch diameter tubes arranged on nominal 2-diameter, 3-diameter and 4-diameter horizontal spacing. Conductive/convective heat transfer coefficients as a function of tube size, location and surface orientation have also been obtained on these same bundle configurations and on isolated single tubes. Finally, evaluations have been made on the effect of altering the tube-to-grid dimensions and of operating with limestone beds of different particle size distributions. A Process Stream Coking Test Unit has been commissioned and is being used to study the parameters affecting coke laydown on the internal surfaces of hydrocarbon-containing tubes under conditions of high temperature and heat transfer rate. Design and early procurement activities are underway for the third laboratory facility which will be a ''hot'', coal-fired, fluidized-bed combustor. This facility will be used to study overall heat transfer coefficients and combustion performance.

• Research Organization: Exxon Research and Engineering Co., Florham Park, NJ (USA). Engineering Technology Dept.
• OSTI ID: 6437058
• Report Number(s): HCP/T2471-21
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
020400 -- Petroleum-- Processing
42 ENGINEERING
421000* -- Engineering-- Combustion Systems
BURNERS
CARBONACEOUS MATERIALS
CARBONIZATION
CHEMICAL PLANTS
CHEMICAL REACTIONS
COAL
COKING
COMBUSTION
COMBUSTORS
CONFIGURATION
DATA
DECOMPOSITION
DESIGN
ENERGY
ENERGY SOURCES
ENERGY TRANSFER
ENGINEERING
FLUIDIZATION
FLUIDIZED-BED COMBUSTION
FLUIDIZED-BED COMBUSTORS
FOSSIL FUELS
FUELS
HEAT
HEAT EXCHANGERS
HEAT TRANSFER
HEATERS
HYDROCARBONS
INDUSTRIAL PLANTS
INFORMATION
ORGANIC COMPOUNDS
OXIDATION
PARTICLE SIZE
PETROCHEMICAL PLANTS
PETROLEUM REFINERIES
PROCESS HEAT
PUMPS
SIZE
TEST FACILITIES
THERMOCHEMICAL PROCESSES
TUBES