Diagrams and tables on various patterns of heat exchange in coal hydrogenation

Technical Report ·

OSTI ID:5750954

The various alternatives illustrated included heat exchange of gases only, heat exchange for coal paste as well, and heat exchange of part of the paste in one stream and the rest in another stream. There were several different types of diagrams, including schematic flow sheets with temperatures indicated at various spots in the apparatus, heat-balance and heat-flow diagrams, temperature-change diagrams, etc. There were graphs of heat-transfer efficiency and pressure drops within the apparatus. There were tables giving throughputs, flow rates, temperature changes, heat transfer coefficients, etc. for preheaters and heat exchangers. The diagrams were scaled for a process in which 50.2 (metric) tons/hr of coal paste and residues and 48,000 m/sup 3//hr of hydrogen gas were reacted to give 24.5 t/hr of liquid product, 20.6 t/hr sludge residue out of the process (with another 5.8 t/hr of residues recycled into the process) and 83,000 m/sup 3//hr of circulating gases. In each case, there were 26,000,000 cal accounted for in a heat balance into and out of the reaction ovens. In each case, the heat of reaction was 9,100,000 cal. The remainder of the heat into the ovens came from heating the reactants up to 100/sup 0/, from heat exchange involving part or all of the reactants, and from preheating part of all of them. The heat out of the oven was lost in the product coolers, carried away in the sludge residue, lost to radiation, or used in heat exchange. 4 figures, 4 tables.

• OSTI ID: 5750954
• Report Number(s): TOM-77-00884-00895
• Country of Publication: United States
• Language: German

Related Subjects

01 COAL, LIGNITE, AND PEAT
010403* -- Coal & Coal Products-- Hydrogenation-- (-1987)
BERGIUS PROCESS
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COAL GAS
COAL LIQUEFACTION
COAL LIQUEFACTION PLANTS
COAL PASTES
DATA FORMS
DIAGRAMS
EFFICIENCY
ENERGY SOURCES
ENERGY TRANSFER
ENTHALPY
FLOWSHEETS
FLUIDS
FOSSIL FUELS
FUELS
GASES
HEAT EXCHANGERS
HEAT FLOW
HEAT TRANSFER
HEATERS
HIGH PRESSURE
HIGH TEMPERATURE
HYDROGENATION
INDUSTRIAL PLANTS
LIQUEFACTION
PHYSICAL PROPERTIES
REACTION HEAT
SYNTHETIC FUELS
TABLES
TEMPERATURE DISTRIBUTION
THERMAL EFFICIENCY
THERMOCHEMICAL PROCESSES
THERMODYNAMIC PROPERTIES