Dunn-Nokota Methanol Project, Dunn County, North Dakota. Volume II. Preliminary plant design and cost estimate. [Proposed methanol project near Dunn Center, North Dakota]
This section summarizes the significant results of Fluor's work in the Dunn-Nokota Methanol Project Feasibility Study: (1) preliminary design of the process plant and supporting facilities; cost estimates for the facilities and health and safety assessments related to the process plant. In addition to the base case methanol plant design and cost estimates, several alternative cases were investigated in less detail. The plant is designed to convert North Dakota lignite coal into chemical grade A methanol and other marketable by-products. The plant will receive run-of-mine coal at the plant site and will generate sufficient electrical power to meet normal plant and mine requirements. The plant has been designed with sufficient multiple trains, spare equipment and intermediate storage to provide an overall on-steam factor of 95%. In addition, the plant has been designed to be constructed in two phases with each phase having facilities to produce 50% of the total plant capacity. The lignite is crushed and screened and the sized coal is fed to Lurgi gasifiers where it is gasified under pressure in the presence of steam and oxygen to produce a raw synthesis gas. The raw gas is cooled and cleaned in downstream units to remove water, heavy hydrocarbons, sulfur compounds, and carbon dioxide. The purified gas, containing primarily carbon monoxide and hydrogen, is compressed and converted into methanol in the presence of a catalyst. The crude methanol is purified by distillation, producing chemical grade A product. Methane produced in the gasification process is converted into additional synthesis gas and subsequently into methanol. Condensed hydrocarbon and chemical liquids are separated and upgraded into marketable by-products. Sulfur compounds removed from the raw gas are converted into an elemental sulfur by-product. Carbon dioxide removed from the raw gas is purified and compressed for sale.
- Research Organization:
- Fluor Engineers and Constructors, Inc., Irvine, CA (USA)
- DOE Contract Number:
- FG01-81RA50362
- OSTI ID:
- 6460908
- Report Number(s):
- DOE/RA/50362-1395-Vol.2-Pt.1; ON: DE83008565
- Country of Publication:
- United States
- Language:
- English
Similar Records
Dunn-Nokota Methanol Project, Dunn County, North Dakota. Volume III. Market analysis. [Proposed methanol project near Dunn Center, North Dakota]
Dunn-Nokota Methanol Project, Dunn County, North Dakota. Volume VII. Environmental and socioeconomic assessments. [Proposed methanol project near Dunn Center, North Dakota]
Related Subjects
010404 -- Coal
Lignite
& Peat-- Gasification
090221* -- Alcohol Fuels-- Chemical Synthesis-- (1976-1989)
10 SYNTHETIC FUELS
ALCOHOLS
ASHES
BROWN COAL
BY-PRODUCTS
CAPITALIZED COST
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBONACEOUS MATERIALS
CATALYSTS
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COAL
COAL FINES
COAL GASIFICATION
COAL GASIFICATION PLANTS
COMBUSTION
COST
DATA
DESIGN
DIAGRAMS
ELECTRIC POWER
ELEMENTS
ENERGY BALANCE
ENERGY SOURCES
ENGINEERING
EQUIPMENT
EXPERIMENTAL DATA
FEASIBILITY STUDIES
FLOWSHEETS
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
GASIFICATION
GASOLINE
HIGH BTU GAS
HYDROXY COMPOUNDS
INDUSTRIAL PLANTS
INFORMATION
LIGNITE
LIQUID FUELS
LURGI PROCESS
MATERIAL BALANCE
MATERIALS
METHANOL
METHANOL PLANTS
NONMETALS
NUMERICAL DATA
OPERATING COST
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
POWER
POWER GENERATION
PRODUCTION
PURIFICATION
RESIDUES
SAFETY ENGINEERING
STEAM
SULFUR
SYNTHESIS GAS
THERMOCHEMICAL PROCESSES
WATER REQUIREMENTS
WATER SUPPLY