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Due to the rock salt resources in China mainly being bedded salt, it brings great challenges for the strategic petroleum reserve (SPR) cavern construction and safety evaluation. A series of investigations are presented to analyze the stability and availability of the China's first underground SPR salt cavern facilities, located in bedded rock of Jintan, China. Systematic mechanics experiments of rocks...
Ipomoea aquatica, a tropical plant was used as a new substrate, and the digested sludge (DS) was used as inoculum for biohydrogen production. In order to inhibit the hydrogen consuming bacteria (HCB), the DS was subjected to thermal and acid pretreatment to identify the optimum method. The results showed that thermal pretreatment was better than acid pretreatment. To further investigate the best thermal...
The effects of adding GnPs (graphene nanoplatelets) (nanoscale) and EG (expanded graphite) (microscale) were investigated to improve the thermal performance of PA-SA (palmitic-stearic acid) eutectic mixture as a PCM (phase change material). Carbon materials were dispersed into PA-SA with loadings of 1wt%, 2wt%, 4wt%, and 8wt%. The thermal properties measurement results show that the phase change latent...
Possessing the fluxility of transfer fluids and the latent heat capacity of PCMs (phase change materials), fatty acids PCSs (phase change slurries) can be utilized as a superior alternative to store thermal energy collected from many fields. CA (Capric acid)–LA (lauric acid) PCSs, with span20/SDS used as emulsifiers in the mass ratio of 3.24:1, are prepared for the first time in this paper. The optimized...
A novel composite PCM (phase change material) with PA-SA (palmitic-stearic acid) eutectic mixture as PCM and EG (expanded graphite) as supporting material was prepared. The optimum absorption ratio of PA-SA/EG (Palmitic-stearic acid/expanded graphite) composite PCM was determined as PA-SA:EG = 13:1 (by mass). Scanning electron microscope and Fourier transformation infrared spectroscopy results show...
Heavier crude oil, tighter environmental regulations and increased heavy-end upgrading in the petroleum industry are leading to the increased demand for hydrogen in oil refineries. Hence, hydrotreating and hydrocracking processes now play increasingly important roles in modern refineries. Refinery hydrogen networks are becoming more and more complicated as well. Therefore, optimisation of overall...
The molecular characterisation of refinery feedstocks is a challenging task since, typically, a vast number of components are present in the mixture. Non-experimental approaches for characterisation of hydrocarbon streams fall into three categories: pseudo-component, compound class and average structural parameter methods. In this work, a new compound class approach is used to represent any hydrocarbon...
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