(475h) Boiling Points of Hydrocarbons in Nanoporous Media at High Pressures Using Differential Scanning Calorimetry Measurements
- Conference: AIChE Annual Meeting
- Year: 2019
- Proceeding: 2019 AIChE Annual Meeting
- Group: Topical Conference: Advances in Fossil Energy R&D
- Time: Wednesday, November 13, 2019 - 10:06am-10:24am
Two silica based mesoporous materials with internal average pore size of about 4 nm were first synthesized. SBA-15 has ordered hexagonal pores while SBA-16 is characterized by ordered cubic pores. Boiling points of heptane and toluene were measured in these materials using a high-pressure differential scanning calorimetry instrument. Boiling points were also measured in the bulk and with sand (with no internal pore structure) for comparison. Boiling points were measured at 1, 7 and 13 bar pressures.
The boiling points were higher at all of the pressures studied, and for all the fluids for SBA-15 and SBA-16 in comparison to the bulk and sand measurements. It was thus possible to generate vapor-pressure curves under confinement for the fluids studied in this paper.
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