Coal gasification pilot plant support studies. Subtask 1-3. Application of availability analysis in assessing the efficiency of coal gasification processes

Technical Report · Wed Oct 01 00:00:00 EDT 1980

DOI:https://doi.org/10.2172/6893999· OSTI ID:6893999

The methodology for availability analysis to assess thermodynamic efficiency in coal gasification processes has been established. The methodology includes the following: procedures for estimating chemical, thermal, and mechanical contributions to enthalpy, entropy, and availability transformations in various steps of coal gasification processes; and definition of parameters for a quantitative assessment of process thermodynamic efficiency. The methodology of availability analysis, including the procedures and definitions (mentioned above), has been used to develop computer programs for assessing the thermodynamic efficiency of coal gasification processes. These programs are written in FORTRAN IV for use in the IGT computer facilities. The data input to these programs include the temperatures, pressures, and flow rates of chemical species entering and leaving the processes or process steps being analyzed. The thermodynamic analyses provided by the computer programs include: verification of material and heat balances; and computation of availability balances and process thermodynamic efficiency parameters. Availability analyses have been conducted for the major process steps in proposed designs of HYGAS and Lurgi processes for producing SNG from Eastern coals. For each design, process steps with potential for improved thermodynamic efficiencies have been identified, and recommendations were made for improving process efficiencies. The proposed HYGAS and Lurgi designs were compared, and differing design features were contrasted and analyzed.

• Research Organization: Institute of Gas Technology, Chicago, IL (United States)
• DOE Contract Number: AC21-78ET11330
• OSTI ID: 6893999
• Report Number(s): FE-2806-10
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
HYGAS PROCESS
EFFICIENCY
THERMODYNAMICS
LURGI PROCESS
AVAILABILITY
COAL GASIFICATION
COMPUTER CALCULATIONS
EXPERIMENTAL DATA
TECHNOLOGY ASSESSMENT
THERMODYNAMIC PROPERTIES
DATA
GASIFICATION
INFORMATION
NUMERICAL DATA
PHYSICAL PROPERTIES
SNG PROCESSES
THERMOCHEMICAL PROCESSES
010404* - Coal
Lignite
& Peat- Gasification