Petroleum coke utilization: Effect of coagglomeration with novel silica-enhanced sulfur sorbents

Journal Article · · Energy and Fuels; (USA)

DOI:https://doi.org/10.1021/ef00025a004· OSTI ID:5745362

Otaigbe, J U; Egiebor, N O ^[1]

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1. Univ. of Alberta, Edmonton (USA)

Novel silica-enhanced hydrated lime sulfur sorbents were prepared by pressure hydrating lime and silica mixtures at a Ca(OH){sub 2}/SiO{sub 2} mole ratio of 1.0, and tested for their sulfur capture efficiency when incorporated into Syncrude and Suncor coke. These activated sorbents were observed to be more active than the conventional sorbent (Ca(OH){sub 2}) in the removal of sulfur dioxide emission during combustion at 800{degree}C and at equivalent Ca/S ratio. Coagglomeration of the coke with the silica-enhanced sorbents resulted in higher ash content and higher calorific values relative to the coke/Ca(OH){sub 2} agglomerates. The sulfur capture efficiencies of the activated sorbents in the coke were found to depend mainly upon metal:sulfur (M/S) ratio, combustion temperature, type of sorbent, and coke. These results will provide a basis for the production of smokeless solid fuels from the coke and sorbent materials via carbonization.

• OSTI ID: 5745362
• Journal Information: Energy and Fuels; (USA), Journal Name: Energy and Fuels; (USA) Vol. 5:1; ISSN 0887-0624; ISSN ENFUE
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040600 -- Oil Shales & Tar Sands-- Products & By-Products
040900 -- Oil Shales & Tar Sands-- Waste management
044000* -- Oil Shales & Tar Sands-- Combustion-- (1990-)
ADSORBENTS
AGGLOMERATION
AIR POLLUTION ABATEMENT
ALKALINE EARTH METAL COMPOUNDS
ASH CONTENT
BITUMENS
BITUMINOUS MATERIALS
CALCIUM COMPOUNDS
CALCIUM HYDROXIDES
CALORIFIC VALUE
CARBONACEOUS MATERIALS
CARBONIZATION
CHALCOGENIDES
CHEMICAL REACTIONS
COCOMBUSTION
COHERENT SCATTERING
COKE
COKING
COMBUSTION
COMBUSTION PROPERTIES
DECOMPOSITION
DESULFURIZATION
DIFFRACTION
EFFICIENCY
ELECTRON MICROSCOPY
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
HYDROXIDES
MATERIALS
METALS
MICROSCOPY
MINERALS
MORPHOLOGY
NONMETALS
OIL SANDS
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXIDATION
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
PERFORMANCE TESTING
POLLUTION ABATEMENT
QUANTITY RATIO
REMOVAL
SCANNING ELECTRON MICROSCOPY
SCATTERING
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SOLID FUELS
SULFUR
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TAR
TEMPERATURE DEPENDENCE
TESTING
THERMOCHEMICAL PROCESSES
X-RAY DIFFRACTION