Determination of Hydrogen Solubility in Heavy Fractions of Crude Oils by a Modified Direct Method

Autor:	Aijun Guo, Shunfeng Ji, Zhou Ying, Zongxian Wang, Kun Chen
Rok vydání:	2013
Předmět:	chemistry.chemical_classification Hydrogen General Chemical Engineering Analytical chemistry chemistry.chemical_element General Chemistry Toluene chemistry.chemical_compound Boiling point chemistry Boiling Organic chemistry Atomic ratio Solubility Dissolution Alkyl
Zdroj:	Journal of Chemical & Engineering Data. 58:3453-3457
ISSN:	1520-5134 0021-9568
DOI:	10.1021/je400729v
Popis:	The solubility of hydrogen in Venezuelan heavy coking gas oil (HCGO), Karamay atmospheric residue (KRAR), Liaohe atmospheric residue (LHAR), and Venezuelan atmospheric residue (VNAR) was measured at temperatures in the range 150 °C to 350 °C at pressures up to 11 MPa by a modified direct method. The measurement accuracy and reliability were examined by determining hydrogen solubility in toluene and n-heptane at temperatures of 25 °C, 50 °C and 100 °C, and results are in a good agreement with the data reported. The order of hydrogen solubility in the four feedstocks at the same experimental condition is VNAR < LHAR < KRAR < HCGO. The impact of oil properties, such as aromatic ring number and alkyl chain length, on hydrogen solubility was discussed. The results indicate that the condensed aromatics play a key role in the fractions of high boiling points. The hydrogen dissolving capacity in different derived oils with the same boiling range can be tentatively determined via analyzing the H/C atomic ratio of ...
Databáze:	OpenAIRE
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