US 10,920,160 B2Granted

Environment-friendly marine fuel

AssigneeMawetal LLC

InventorsMohammed Wohaibi, Tom F. Pruitt

Life of this patent

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Abstract

For the shipping industry, these fuels provide solutions to long outstanding technical problems that heretofore hindered supply of low sulfur marine fuels in quantities needed to meet worldwide sulfur reduction goals. Marine shipping use of high sulfur bunker oils is reported as largest source of worldwide transportation SOx emissions. When ships on the open seas burn cheap low grade heavy bunker oils high in sulfur, nitrogen and metals, the SOx, NOx, and metal oxides go to the environment. This invention converts essentially all of each barrel of crude feed to a single ultraclean fuel versus conventional refining where crude feed is cut into many pieces, and each piece is sent down a separate market path meeting various different product specifications. When in port, ships can use these fuels to generate and sell electricity to land based electrical grids to offset fuel cost in an environment-friendly manner.

Claims24

Dependent claims

A technical method to offset or reduce fuel costs incurred at sea by a ship tendering to grid on shore while transient in port all or portion of on-board electricity generated by firing on-board fuel comprising analyzing KWH cost of electricity generated by land based supply and KWH cost of electricity generated on board ship when transient in port firing on-board fuel for electrical generation for costs

(i) of land based supply to port electrical grid where
(a) ship receives electricity from said grid or
(b) ship sends electricity to said grid, then
(ii) of transient ship when in port where
(a) ship receives electricity from said grid or
(b) ship sends electricity to said grid,
(iii) then if costs of (i)(a)+(ii)(a)>(i)(b)+(ii)(b), to offset or reduce fuel costs incurred at sea, transient ship when in port connects to said grid and controls ship's on board generators loads to send electricity to said grid for compensation to said ship which offsets or reduce fuel costs incurred at sea.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 16/731,876Filed 31 Dec 2019 · division
Published: US 2020/0199467 A125 Jun 2020
Granted: 16 Feb 2021
Term ends: Not estimatedThe source records don’t support an estimate.

Classification35 codes

C10G 67/14
Plural serial stages only: including at least two different refining steps in the absence of hydrogen
C10G 45/02
Refining of hydrocarbon oils using hydrogen or hydrogen-generating compounds: to eliminate hetero atoms without changing the skeleton of the…
C10G 67/04
Plural serial stages only: including solvent extraction as the refining step in the absence of hydrogen
C10L 1/04
Liquid carbonaceous fuels: essentially based on blends of hydrocarbons

Family

PCT/US2016/057540Parent of this division · filed 18 Oct 2016
US 2020/0199467 A1Pre-grant publication · published 25 Jun 2020
Application16/089,894Parent of this division
US 10,640,718 B2Parent of this division
US 2019/0093026 A1Published application
US 10,920,160 B2This patent

From the US filing history. Foreign family members aren’t listed.