Process for Extracting High-Molecular-Weight Hydrocarbons from Solid Phase in Equilibrium with Liquid Hydrocarbon Phase

Cordeiro, D. J.; Luks, Kraemer D.; Kohn, James P.

doi:10.1021/i260045a009

Cited by 16 publications

References 7 publications

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Some thermodynamic aspects of petroleum recovery by methane pressurization

et al. 1973

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In two previous papers (Cordeiro et al., 1973a, b ) a methane pressurization process was described by which the solubility of high molecular weight hydrocarbons in a solid phase could be enhanced within a liquid hydrocarbon phase by pressurizing the solid-liquid system with methane gas. This solubility enhancement was demonstrated to occur for two diverse hydrocarbon solids in the following prototype systems : System I: methane (gas) -normal decane (liquid) -normal dotriacontane (solid) System 11: methane (gas) -normal decane (liquid) -phenanthrene (solid) and some speculation was offered concerning the selectivity of aromatic vs. paraffinic solids of similar melting point under methane pressurization with n-decane being the liquid solvent in each case.In this paper, several thermodynamic aspects of the process are considered with respect to the Systems I and I1 and also System 111: methane (gas)-trans decalin (liquid) -normal dotriacontane (solid) the study of which has been recently completed. These experimental results are presented below. EXPERIMENT-SYSTEM IllAn experimental study of the phase equilibria behavior of the ternary system methane-trans decalin-normal dotriacontane was performed. The data was correlated with the Flory-Huggins model (Flory, 1942; Huggins, 1942) solely for the purpose of aiding the later thermodynamic analysis of the system with respect to process behavior. Our previous work (Cordeiro et al. 1973a) presents the equations of this model in detail. The model works as well as with System I, and better than with System 11, using the following partial molar volume and inter- where T is "K. The data are applicable in the range of 323-340°K up to pressures of 70 abn. These data were obtained from the following laboratory experiments, each of which was reproduced at least once.

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Some thermodynamic aspects of petroleum recovery by methane pressurization

et al. 1973

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Phase Behavior of Heavy Oils with Application to Reservoir Recovery Processes

Jacoby

1984

Heavy Crude Oil Recovery

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Rigid urethane foams from hydroxymethylated castor oil, safflower oil, oleic safflower oil, and polyol esters of castor acids

Lyon

Garrett

Frankel

1974

J Americ Oil Chem Soc

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Castor, safflower, and oleic safflower oil derivatives with enhanced reactivity and hydroxyl group content were prepared by hydroformylation with a rhodium-triphenylphosphine catalyst, followed by hydrogenation. Rigid urethane foams prepared from these hydroxymethylated derivatives had excellent compressive strengths, closed cell contents, and dimensional stability. Best properties were obtained from hydroxymethylated polyol esters of castor acids. C H 3-( CH 2)z-C H-( CH 2 )y-CH-( CH 2 )x-C OOR 176 236 303 t-© t'~ 7~ t-ro © aRef. 5. bOn methyl esters, JXR silicone column programed from 180-260 C at 2 C/rain, flame ionization detector. Hydroformylated castor esters showed several peaks which were not identified. CPrepared by hydrogenation of hydroformylated products with Raney nickel at 100 C/1000 psig H 2. dOn acetate esters, eCalculated values for methyl hydroxymethylstearate = 170.5; methyl dihydroxymethylstearate = 312.5; methyl hydroxymethylhydroxystearate = 325. fEquivalent wt = 56,100/(hydroxyl value + acid value). < © r~

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Process for Extracting High-Molecular-Weight Hydrocarbons from Solid Phase in Equilibrium with Liquid Hydrocarbon Phase

Cited by 16 publications

References 7 publications

Some thermodynamic aspects of petroleum recovery by methane pressurization

Some thermodynamic aspects of petroleum recovery by methane pressurization

Phase Behavior of Heavy Oils with Application to Reservoir Recovery Processes

Rigid urethane foams from hydroxymethylated castor oil, safflower oil, oleic safflower oil, and polyol esters of castor acids

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