Marathon Petroleum Company LP

John R Weber

Jeffrey A Sexton

Peg Broughton

V Elijah Mullins

Richard L Eller

Fuel oil compositions, and methods for blending such fuel oil compositions, to enhance initial compatibility and longer term stability when such fuel oil compositions are blended to meet IMO 2020 low sulfur fuel oil requirements (ISO 8217). In one or more embodiments, asphaltenic resid base stocks are blended with high aromatic slurry oil to facilitate initial compatibility such that low sulfur cutter stocks, e.g., vacuum gas oil and/or cycle oil, may be further blended therein to cut sulfur content while maintaining longer term stability. These fuel oil compositions are economically advantageous when used as marine low sulfur fuel oils because greater concentrations of high viscosity resids are present in the final blend.

Low sulfur fuel oil blends for stability enhancement and associated methods

Low sulfur fuel oil blends for stabtility enhancement and associated methods

In asbestos abatement or decontamination work, negative pressure is established within a work area, and air entering the work area in response to the negative pressure is caused to pass through or past a HEPA filter in an air inlet to the work area. If the negative pressure within the work area ceases, as in an emergency situation, any air exiting the work area through the air inlet is caused to pass through the HEPA filter. This may be accomplished by pivotally mounting the HEPA filter for rotation about a horizontal axis so that it moves out of the way of inflowing air, while outgoing air must pass through the filter. Alternatively, a fan may also be mounted in the air inlet and may be operated in response to pressure within the work area, so that when a negative pressure condition exists within the work area the fan is operated to force air into the work area through the HEPA filter, while if the negative pressure condition terminates, the fan is turned off, so that any air exiting through the inlet must pass through the HEPA filter.

Growing community of inventors

Findlay, OH, United States of America

John R Weber