Publications by authors named "Fujun Sheng"
Article Synopsis
- The study investigates how enhanced oil recovery using carbon dioxide (CO) alters the properties of crude oil, specifically focusing on wax characteristics and viscosity changes.
- As the treatment pressure increases from atmospheric levels to higher pressures (up to 25 MPa), notable changes in the composition of crude oil occur, including decreases in light hydrocarbons and increases in paraffins and wax.
- Treatment with supercritical CO (scCO) leads to smaller wax crystal sizes and increased viscosity, with significant enhancements in gelation characteristics and wax precipitation temperatures, especially notable between pressures of 5 to 15 MPa.
With the exploitation of heavy oil worldwide, the influence of asphaltene aggregation in the oil phase on the stability of crude oil emulsion has been paid more and more attention. Under this background, the effects of solvent polarity on model oil/brine water interfacial properties and emulsion stability are investigated in this study. It is demonstrated that there is a critical asphaltene concentration for the formation of a stable emulsion.
View Article and Find Full Text PDFThe giant panda (Ailuropoda melanoleuca) is an endangered species and indigenous to China. It has been proposed that it has a highly specialized reproductive pattern with low fecundity, but little is known about its basic reproductive biology at the molecular level. In this report the genes encoding gonadotropin subunits alpha, follicle-stimulating hormone (FSH) beta and luteinizing hormone (LH) beta of the giant panda were amplified for the first time by RT-PCR from pituitary total RNA, and were cloned, sequenced and analyzed.
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