Effect of prehydrogenation on hydroconversion of Maya residuum, part II

Conference · Fri Jan 01 00:00:00 EST 1988

OSTI ID:5458864

Beret, S ^[1]; Reynolds, J G ^[2]

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1. Univ. of California, Lawrence Livermore National Lab., Livermore, CA (US)
2. Chevron Research Co., Richmond, CA (US)

Maya 650{sup 0}F residuum (Maya AR) was subjected to mild prehydrogenation over a standard hydroprocessing catalyst. The 650{sup 0}F residuum of this product (HMaya AR) and Maya AR were then subjected to further hydroconversion processing. The products were analyzed by elemental /sup 1/H, and /sup 13/C NMR analyses to determine the incorporation of hydrogen during processing. For all processing steps, hydrogen was incorporated in capping fragments formed during cracking reactions, as well as in hydrogenation reactions. heteroatom removal, and hydrocarbon gas formation, but the distribution of the hydrogen was dependent upon the severity of the process. In general, 30 to 40% of the total hydrogen was incorporated for heteroatom removal and hydrocarbon gas formation. The remaining hydrogen was incorporated in the cracking and hydrogenation reactions. The hydrogen incorporation of each specific processing step is discussed, along with an evaluation of the prehydrogenation step as a residuum conversion process option. The results are also compared to previously reported hydrogen incorporation measurements on other feeds and processing methods.

• OSTI ID: 5458864
• Report Number(s): CONF-880348-
• Resource Relation: Conference: American Institute of Chemical Engineers spring national meeting, New Orleans, LA (USA), 6-10 Mar 1988; Other Information: Technical Paper 44D
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
PETROLEUM RESIDUES
HYDROGENATION
CATALYSTS
HYDROCRACKING
HYDROGEN
QUANTITATIVE CHEMICAL ANALYSIS
CHEMICAL ANALYSIS
CHEMICAL REACTIONS
CRACKING
DECOMPOSITION
ELEMENTS
ENERGY SOURCES
FOSSIL FUELS
FUELS
NONMETALS
PETROLEUM
PETROLEUM FRACTIONS
PYROLYSIS
THERMOCHEMICAL PROCESSES
020400* - Petroleum- Processing