Effect of calcite on crude oil combustion characterized by high-pressure differential scanning calorimetry (HP-DSC)

Abstract

© 2019, © 2019 Taylor & Francis Group, LLC. The influence of calcite on crude oil combustion was studied using high-pressure differential scanning calorimetry (HP-DSC). Calcite had a small effect on the low-temperature oxidation (LTO), but it had a strong promotion on fuel deposition (FD) and high-temperature oxidation (HTO). It significantly enhanced the formation of fuel and its combustion with a significant shift of FD and HTO intervals into lower temperature ranges, thus improving the combustion efficiency of crude oil. The promotion of calcite on crude oil combustion was more related to its specific surface area, rather than its catalytic effect on decreasing activation energy.