Applications of micellar enzymology to clean coal technology. [Laccase from Polyporus versicolor]

Technical Report · Tue Jul 24 00:00:00 EDT 1990

DOI:https://doi.org/10.2172/5100776· OSTI ID:5100776

Walsh, C T

This project is designed to develop methods for pre-combustion coal remediation by implementing recent advances in enzyme biochemistry. The novel approach of this study is incorporation of hydrophilic oxidative enzymes in reverse micelles in an organic solvent. Enzymes from commercial sources or microbial extracts are being investigated for their capacity to remove organic sulfur from coal by oxidation of the sulfur groups, splitting of C-S bonds and loss of sulfur as sulfuric acid. Dibenzothiophen (DBT) and ethylphenylsulfide (EPS) are serving as models of organic sulfur-containing components of coal in initial studies.

• Research Organization: Boston Univ., MA (United States). School of Medicine
• Sponsoring Organization: USDOE; USDOE, Washington, DC (United States)
• DOE Contract Number: FG22-89PC89772
• OSTI ID: 5100776
• Report Number(s): DOE/PC/89772-T9; ON: DE92016125
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
59 BASIC BIOLOGICAL SCIENCES
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CHEMICAL BONDS
CLEAVAGE
COAL
DESULFURIZATION
ENZYMES
CATALYTIC EFFECTS
ORGANIC SULFUR COMPOUNDS
BIODEGRADATION
OXIDATION
MICELLAR SYSTEMS
PH VALUE
POLYCYCLIC SULFUR HETEROCYCLES
PROGRESS REPORT
SIMULATION
SOLVENTS
SULFIDES
SURFACTANTS
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
CRYSTAL STRUCTURE
DECOMPOSITION
DOCUMENT TYPES
ENERGY SOURCES
FOSSIL FUELS
FUELS
HETEROCYCLIC COMPOUNDS
MATERIALS
MICROSTRUCTURE
ORGANIC COMPOUNDS
PROTEINS
SULFUR COMPOUNDS
010402* - Coal
Lignite
& Peat- Purification & Upgrading
550700 - Microbiology
400201 - Chemical & Physicochemical Properties