CATEGORY: HEAVY CRUDE
Energy Fuels, Article ASAP, DOI:
10.1021/ef400012e, Publication Date (Web): March 9, 2013
High
Temperature Simulated Distillation of Bitumen Fractions with Open Tubular
Capillary Columns Depleted in Silicone/Siloxane Stationary Phases
Lante Carbognani *, Josune Carbognani Arambarri , Hebert Molero ,
and Pedro Pereira-Almao
lcarbogn@ucalgary.ca
Chemical and Petroleum Engineering Department, Schulich School of Engineering,
University of Calgary, Calgary, Alberta T2N 1N4, Canada
Abstract
High
Temperature Simulated Distillation (HTSD) is routinely carried out in petroleum
laboratories for characterization of heavy hydrocarbon fractions. However,
thermal cracking from HTSD high operating temperatures may affect analytes
during the chromatographic process. Researchers demonstrated the feasibility of
using silicone/siloxane depleted stationary phase wide bore capillary columns
for HTSD conducted under lower setup temperatures to avoid cracking.
Sequential low temperature elution for analysis followed by high
temperature oven cycles for injector cleaning were found to be essential for
successful operation. Researchers found depleted stationary phase metal
capillary columns to be a promising alternative, advantageous in terms of
column life span and retention times constancy. Findings indicate that these
columns can have useful life in the greater than or equal to a year span.
Full Text Source (Subscription or Fee): http://pubs.acs.org/doi/abs/10.1021/ef400012e
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