Design and evaluation of Cities Service/Rockwell hydrogasification commercial plant

Technical Report · Fri Aug 01 00:00:00 EDT 1980

DOI:https://doi.org/10.2172/6529834· OSTI ID:6529834

Agrawal, P D; Butt, N M; Sarma, K R

This report covers a preliminary conceptual design and economic evaluation of a commercial scale plant capable of converting high-sulfur bituminous caking coal to a high-Btu pipeline quality SNG. The plant, which has a rated capacity of 250 Billion Btu per day SNG, is based on Cities Service/Rockwell hydrogasification technology. Two cases of plant design were examined to produce cost estimates accurate to +-25% in 1979 dollars. The base case, designed for moderate production of liquids (5.8% conversion of carbon to liquid product), has a cost of SNG of $4.43/MMBtu using the utility financing method (UFM) and $6.42/MMBtu using the discounted cash flow method (DCFM) of financing. The alternate case, zero liquids production, has gas costs of $5.00 (UFM) and $6.96 (DCFM). Further tests by Rockwell have indicated that 11.4% carbon conversion to liquid products (99% benzene) is possible. If the plant is scaled up to produce the same amoung of SNG with this increased yield of liquid, and if the value of the benzene produced is estimated to be $0.90 per gallon, the costs of gas for this case are $4.38/MMBtu (UFM) and $6,48/MMBtu (DCFM). If the value of benzene is taken as $2.00 per gallon, these costs become $3.14/MMBtu (UFM) and $5.23/MMBtu (DCFM). The economic assumptions involved in these calculations are detailed.

• Research Organization: UOP, Inc., McLean, VA (USA); System Development Corp., McLean, VA (USA)
• DOE Contract Number: AC01-78ET10159
• OSTI ID: 6529834
• Report Number(s): DOE/ET/10159-T7
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
COAL GASIFICATION PLANTS
DESIGN
HIGH BTU GAS
COST
BENZENE
BY-PRODUCTS
CHEMICAL COMPOSITION
COAL GASIFICATION
COAL LIQUIDS
COMMERCIALIZATION
DIAGRAMS
ENGINEERING
FLOWSHEETS
NUMERICAL DATA
YIELDS
AROMATICS
DATA
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
GASIFICATION
HYDROCARBONS
INDUSTRIAL PLANTS
INFORMATION
LIQUIDS
ORGANIC COMPOUNDS
THERMOCHEMICAL PROCESSES
010404* - Coal
Lignite
& Peat- Gasification