Use of Isotopic Analysis for Determination of Aromatic Hydrocarbons Produced From Methane
OwnerLarry L. Iaccino, Jeremy J. Pattinventors
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Abstract
Benzene and xylene are described having a unique distribution of deuterium and 13C such that δ(deuterium) for each of the benzene and xylene is less than −250 and δ(13C) for the benzene is greater than −36 and for xylene is less than −24, wherein δ(deuterium)=(R′sample/R′standard−1)×1000 where R′sample is the ratio of deuterium to hydrogen in the benzene/xylene; and R′standard is the ratio of the natural abundance of deuterium to the natural abundance of hydrogen; and wherein δ(13C)=(R″sample/R″standard−1)×1000 where R″sample is the ratio of 13C to 12C in the benzene/xylene; and R″standard is the ratio of the natural abundance of 13C to the natural abundance of 12C.
Claims5
-37. (canceled)
Benzene derivatives containing a benzene ring comprising deuterium and 13C in amounts such that δ(deuterium) for the benzene ring is less than −250 or δ(13C) for the benzene ring is less than −24, wherein δ(deuterium) and δ(13C) are as defined as follows:
- δ(deuterium)=(R′sample/R′standard−1)×1000
- where R′sample is the ratio of deuterium to hydrogen in the benzene;
- and
- R′standard is the ratio of the natural abundance of deuterium to the natural abundance of hydrogen;
- and
- δ(13C)=(R″sample/R″standard−1)×1000
- where R″sample is the ratio of 13C to 12C in the benzene;
- and R″standard is the ratio of the natural abundance of 13C to the natural abundance of 12C;
- the benzene derivative being produced by a process comprising dehydrocyclization of methane.
Dependencies are inferred from the claim text.