Industrial application fluidized bed combustion category III indirect fired heaters. Quarterly technical report No. 10, 1 October--31 Dec 1978

Technical Report · Sat Mar 31 23:00:00 EST 1979

DOI:https://doi.org/10.2172/6165070· OSTI ID:6165070

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. 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 is being used to study the parameters affecting coke laydown on the internal surface of hydrocarbon-containing tubes under conditions of high temperature and heat transfer rate. The preliminary data analysis shows that, in addition to film temperature, mass velocity is an important parameter in controlling coking rate. Design, procurement and construction activities are underway for the third laboratory facility which will be a ''hot'' coal fired fluidized bed combustor. The unit design, status of the construction and planned test matrix are described. This facility will be used to study overall heat transfer coefficients in a ''hot'' fluidized bed in addition to fuel combustion.

• Research Organization: Exxon Research and Engineering Co., Florham Park, NJ (USA). Engineering Technology Dept.
• OSTI ID: 6165070
• Report Number(s): HCP/T2471-33
• 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
DECOMPOSITION
DESIGN
ENERGY
ENERGY SOURCES
ENERGY TRANSFER
ENGINEERING
FLUIDIZED-BED COMBUSTION
FLUIDIZED-BED COMBUSTORS
FOSSIL FUELS
FUELS
HEAT
HEAT EXCHANGERS
HEAT TRANSFER
HYDROCARBONS
INDUSTRIAL PLANTS
ORGANIC COMPOUNDS
OXIDATION
PETROCHEMICAL PLANTS
PETROLEUM REFINERIES
PROCESS HEAT
SIZE
TEST FACILITIES
THERMOCHEMICAL PROCESSES
TUBES