Zobrazeno 1 - 10
of 11
pro vyhledávání: '"Xiaoli Tan"'
Publikováno v:
Energy & Fuels. 34:9483-9491
Bitumen froth generated from water-based extraction of Alberta oil sands typically consists of 60 wt % bitumen, 30 wt % water, and 10 wt % mineral solids. The froth has to be cleaned by removing th...
Publikováno v:
Energy & Fuels. 31:6986-6995
The mature fine tailings (MFT) generated from oil sands operations in northern Alberta, Canada, is the most challenging mine tailings to dewater. The MFT forms a gel structure and takes decades to settle and release water. Dewatering of a MFT sample
Autor:
Murray R. Gray, Jeffrey M. Stryker, Alexander Scherer, Nan Zhang, Rik R. Tykwinski, Judah M. J.-B. Mierau, Xiaoli Tan
Publikováno v:
Energy & Fuels. 29:6724-6733
The catalytic hydrodenitrogenation of heavy petroleum fractions is important for the production of high-quality fuels, because the nitrogen-bearing compounds poison acidic catalysts and inhibit sulfur removal. Two families of synthetic nitrogen-conta
Publikováno v:
Energy & Fuels. 28:1004-1011
The sorption of solvents in asphaltenes, residual bitumen, and organic matter is of interest in oil sands production and extraction. In this study, we investigate the sorption and desorption rates of cyclohexane in a thin film of asphaltene using a g
Autor:
Rik R. Tykwinski, Xiaoli Tan, Ali H. Alshareef, Jeffrey M. Stryker, Murray R. Gray, Alexander Scherer, Colin Diner, Khalid Azyat, Jun Zhao
Publikováno v:
Energy & Fuels. 28:1692-1700
The effects of binary interactions on the coke yield and cracking kinetics in mixtures of model compounds were examined to understand the interactions present in multi-component mixtures, such as petroleum residues. Eight model compounds were selecte
Autor:
Rik R. Tykwinski, Jeffrey M. Stryker, Khalid Azyat, Ali H. Alshareef, Murray R. Gray, Xiaoli Tan, Alexander Scherer
Publikováno v:
Energy & Fuels. 26:1828-1843
Cracking and coke formation of a series of pyrene-based model compounds were investigated by thermogravimetric analysis (TGA) and microreactor experiments. The structure of the model compounds is that of a three-island archipelago, consisting of two
Publikováno v:
Energy & Fuels. 25:3125-3134
The components of petroleum asphaltenes exhibit complex bridged structures comprising sulfur, nitrogen, aromatic, and naphthenic groups linked by alkyl chains. These components aggregate in crude o...
Autor:
Murray R. Gray, Xiaoli Tan, Alexander Scherer, Khalid Azyat, Rik R. Tykwinski, Ali H. Alshareef, Jeffrey M. Stryker
Publikováno v:
Energy & Fuels. 25:2130-2136
A series of model compounds for the large components in petroleum, with molecular weights from 534 to 763 g/mol, was thermally cracked in the liquid phase at 365–420 °C to simulate catagenesis over a very short time scale and reveals the selectivi
Autor:
Oliver C. Mullins, Khalid Azyat, Murray R. Gray, Amy L. Morrow, Xiaoli Tan, Rik R. Tykwinski, Richard N. Zare, Andrew E. Pomerantz, Hassan Sabbah
Publikováno v:
Energy & Fuels. 24:3589-3594
The molecular-mass distribution of the asphaltene fraction of petroleum is rapidly becoming more constrained, but the molecular architecture remains poorly understood. Two types of molecular structures have been proposed to be representative of aspha
Publikováno v:
Energy & Fuels. 22:2465-2469
Association of vanadium and nickel petroporphyrin compounds with aromatic groups is commonly invoked as an important mechanism for aggregation of asphaltenes. In this study, the interaction of vanadium and nickel octaethylporphyrin with condensed aro