Mineral oils: processes and products – Refining – Sulfur removal
Reexamination Certificate
2007-10-02
2007-10-02
Caldarola, Glenn (Department: 1764)
Mineral oils: processes and products
Refining
Sulfur removal
C208S014000, C208S015000, C208S059000, C208S089000, C208S094000, C208S143000, C208S144000, C208S210000, C208S212000, C208S218000
Reexamination Certificate
active
10275038
ABSTRACT:
The process for desulfurizing a gas oil fraction according to the invention comprises a low-boiling gas oil fraction hydrodesulfurization step (I) wherein a low-boiling gas oil fraction is desulsurized under the condition of a H2/Oil ratio of 70 to 200 Nm3/kl to obtain a treated oil, a high-boiling gas oil fraction hydrodesulfurization step (II) wherein a high-boiling gas oil fraction is desulsurized under the condition of a H2Oil ratio of 200 to 800 Nm3/kl to obtain a treated oil, and a step (III) wherein the treated oil obtained in the step (I) is mixed with the treated oil obtained in the step (II), and in this process, at least a part of a gas containing unreacted hydrogen in the step (II) is used for the hydrodesulfurization of the step (I).
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Abe Jun
Inomata Makoto
Nagamatsu Shigeki
Sugimoto Akira
Watanabe Tetsuya
Caldarola Glenn
JGC Corporation
Singh Prem C.
The Webb Law Firm
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