CNG acid gas removal process. Final technical report
Work under Contract DE-AC21-80MC14399 comprised four tasks designed to advance development of the CNG acid gas removal process: Task 1 - development of a modified carbon dioxide triple-point crystallizer, Task 2 - acquisition of basic process data, Task 3 - extension of the process to low carbon dioxide content crude gases, and Task 4 - fate of trace contaminants in the CNG process. Task 2 covered crystallizer operation and data acquisition, other process data acquisition unrelated to the crystallizer, and process design studies. Task 2 is comprised of five subtasks. Rate and mechanical slurry handling data for the crystallizer were obtained under Subtask 2.1. For Subtask 2.2, apparatus was constructed and operated to obtain multi-component phase equilibrium data. For Subtask 2.3, crystallizer separation factors were determined for the binary systems carbon dioxide-hydrogen sulfide, carbon dioxide-carbonyl sulfide, carbon dioxide-ethane, carbon dioxide-ethylene, and carbon dioxide-methyl mercaptan. For Subtask 2.4, the minimum net positive suction head (NPSH) required to pump slurries of solid carbon dioxide in an organic liquid carrier solvent was determined for two gear pumps, a piston pump, and a centrifugal pump. For Subtask 2.5, alternative techniques for trace water removal from syngas mixtures were investigated, the likelihood of hydrate formation for methane, carbon dioxide, and hydrogen sulfide was assessed, and the solubility of water in liquid carbon dioxide was measured experimentally. 63 references, 64 figures, 50 tables.
- Research Organization:
- Helipump Corp., Cleveland, OH (USA)
- DOE Contract Number:
- AC21-80MC14399
- OSTI ID:
- 6649841
- Report Number(s):
- DOE/MC/14399-1652; ON: DE84016876
- Resource Relation:
- Other Information: Portions are illegible in microfiche products. Original copy available until stock is exhausted
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
CARBON DIOXIDE
CRYSTALLIZATION
PHASE DIAGRAMS
PHASE STUDIES
REMOVAL
SOLVENT PROPERTIES
CARBON MONOXIDE
CARBON OXYSULFIDE
CNG PROCESS
ENGINEERING
MODIFICATIONS
RESEARCH PROGRAMS
ETHYLENE
FUEL GAS
PURIFICATION
HYDROGEN
HYDROGEN SULFIDES
KETONES
METHANE
SLURRIES
PUMPING
WATER
SOLUBILITY
BI-GAS PROCESS
DATA ACQUISITION SYSTEMS
DESIGN
EQUILIBRIUM
EQUIPMENT
ETHANE
EXPERIMENTAL DATA
FLOWSHEETS
GAS HYDRATES
LIQUIDS
THIOLS
VAPORS
WATER REMOVAL
ALKANES
ALKENES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
COAL GASIFICATION
DATA
DIAGRAMS
DISPERSIONS
ELEMENTS
FLUIDS
FUELS
GAS FUELS
GASES
GASIFICATION
HYDRATES
HYDROCARBONS
HYDROGEN COMPOUNDS
INFORMATION
MIXTURES
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
SEPARATION PROCESSES
SULFIDES
SULFUR COMPOUNDS
SUSPENSIONS
THERMOCHEMICAL PROCESSES
010404* - Coal
Lignite
& Peat- Gasification
010402 - Coal
Lignite
& Peat- Purification & Upgrading