METHOD OF REMOVING SULFUR FROM CRUDE OIL AND DIESEL USING IONIZING RADIATION
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United States of America Patent
Stats
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N/A
Issued Date -
Jun 7, 2012
app pub date -
Feb 12, 2012
filing date -
Feb 12, 2012
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
The present disclosure relates to a method and process to remove the remaining sulfur in four types of Arabian crude oils (Arabian Heavy) (AH) and straight-run diesel (SRD) by ionizing radiation. Radiation-induced desulfurization is not feasible for absorbed doses up to 200 kGy. Most of the organically bound sulfur and/or elemental sulfur and hydrogen sulfide still exist in the irradiated samples. Sulfur removal from crude oil and straight-run diesel was achieved by combining gamma-irradiation with other physical/chemical processes (i.e. liquid/liquid extraction and oxidation) which provided a considerable levels of total sulfur reduction in the investigated products (AH and SRD). The best removal processes for Arabian heavy crude oil and straight-run diesel resulted in reducing total sulfur content up to 36% (AH) and 78% (SRD) corresponding to (liquid process/200 kGy) and (liquid process/200 kGy) for AH and SRD, respectively.
First Claim
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