Patent classifications
C10G67/049
Integrated process for producing anode grade coke
The invention relates to processes for producing anode grade coke from whole crude oil. The invention is accomplished by first deasphalting a feedstock, followed by processing resulting DAO and asphalt fractions. The DAO fraction is hydrotreated or hydrocracked, resulting in removal of sulfur and hydrocarbons, which boil at temperatures over 370 C., and gasifying the asphalt portion in one embodiment. This embodiment includes subjecting hydrotreated and/or unconverted DAO fractions to delayed coking. In an alternate embodiment, rather than gasifying the asphalt portion, it is subjected to delayed coking in a separate reaction chamber. Any coke produced via delayed coking can be gasified.
Multistage resid hydrocracking
Processes for upgrading resid hydrocarbon feeds are disclosed. The upgrading processes may include: hydrocracking a resid in a first reaction stage to form a first stage effluent; hydrocracking a deasphalted oil fraction in a second reaction stage to form a second stage effluent; fractionating the first stage effluent and the second stage effluent to recover at least one distillate hydrocarbon fraction and a resid hydrocarbon fraction; feeding the resid hydrocarbon fraction to a solvent deasphalting unit to provide an asphaltene fraction and the deasphalted oil fraction.
PROCESS TO UPGRADE PARTIALLY CONVERTED VACUUM RESIDUA
Processes for upgrading partially converted vacuum residua hydrocarbon feeds are disclosed. The upgrading processes may include: steam stripping the partially converted vacuum residua to generate a first distillate and a first residuum; solvent deasphalting the first residuum stream to generate a deasphalted oil and an asphaltenes fraction; vacuum fractionating the deasphalted oil to recover a deasphalted gas oil distillate and a heavy deasphalted residuum; contacting the first distillate and the deasphalted gas oil distillate and hydrogen in the presence of a first hydroconversion catalyst to produce a product; contacting the heavy deasphalted residuum stream and hydrogen in the presence of a second hydroconversion catalyst to produce an effluent; and fractionating the effluent to recover a hydrocracked atmospheric residua and a hydrocracked atmospheric distillate.
Process to upgrade partially converted vacuum residua
Processes for upgrading partially converted vacuum residua hydrocarbon feeds are disclosed. The upgrading processes may include: steam stripping the partially converted vacuum residua to generate a first distillate and a first residuum; solvent deasphalting the first residuum stream to generate a deasphalted oil and an asphaltenes fraction; vacuum fractionating the deasphalted oil to recover a deasphalted gas oil distillate and a heavy deasphalted residuum; contacting the first distillate and the deasphalted gas oil distillate and hydrogen in the presence of a first hydroconversion catalyst to produce a product; contacting the heavy deasphalted residuum stream and hydrogen in the presence of a second hydroconversion catalyst to produce an effluent; and fractionating the effluent to recover a hydrocracked atmospheric residua and a hydrocracked atmospheric distillate
FLUXED DEASPHALTER ROCK FUEL OIL BLEND COMPONENT OILS
Deasphalter rock from high lift deasphalting can be combined with a flux to form a fuel oil blending component. The high lift deasphalting can correspond to solvent deasphalting to produce a yield of deasphalted oil of at least 50 wt %, or at least 65 wt %, or at least 75 wt %. The feed used for the solvent deasphalting can be a resid-containing feed. The resulting fuel oil blendstock made by fluxing of high lift deasphalter rock can have unexpectedly beneficial properties when used as a blendstock.
FUEL COMPONENTS FROM HYDROPROCESSED DEASPHALTED OILS
Fuels and/or fuel blending components can be formed from hydroprocessing of high lift deasphalted oil. The high lift deasphalting can correspond to solvent deasphalting to produce a yield of deasphalted oil of at least 50 wt %, or at least 65 wt %, or at least 75 wt %. The resulting fuels and/or fuel blending components formed by hydroprocessing of the deasphalted oil can have unexpectedly high naphthene content and/or density. Additionally or alternately, deasphalted oil generated from high lift deasphalting represents a disadvantaged feed that can be converted into a fuel and/or fuel blending components with unexpected compositions. Additionally or alternately, the resulting fuels and/or fuel blending components can have unexpectedly beneficial cold flow properties, such as cloud point, pour point, and/or freeze point.
BRIGHT STOCK AND HEAVY NEUTRAL PRODUCTION FROM RESID DEASPHALTING
Methods are provided for forming lubricant base stocks from feeds such as vacuum resid or other 510 C.+ feeds. A feed can be deasphalted and then catalytically and/or solvent processed to form lubricant base stocks, including bright stocks that are resistant to haze formation.
BRIGHT STOCK PRODUCTION FROM LOW SEVERITY RESID DEASPHALTING
- Timothy L. Hilbert ,
- Michael B. Carroll ,
- Ajit B. Dandekar ,
- Sara L. Yohe ,
- Stephen H. Brown ,
- Tracie L. Owens ,
- April D. Ross ,
- Eric B. Senzer ,
- Steven Pyl ,
- Rugved P. Pathare ,
- Lisa I-Ching Yeh ,
- Bradley R. Fingland ,
- Keith K. Aldous ,
- Anjaneya S. Kovvali ,
- Kendall S. Fruchey ,
- Sara K. Green ,
- Camden N. Henderson
Methods are provided for forming lubricant base stocks from feeds such as vacuum resid or other 510 C.+ feeds. A feed can be deasphalted and then catalytically and/or solvent processed to form lubricant base stocks, including bright stocks that are resistant to haze formation.
BRIGHT STOCK PRODUCTION FROM LOW SEVERITY RESID DEASPHALTING
- Timothy L. Hilbert ,
- Michael B. Carroll ,
- Ajit B. Dandekar ,
- Sara L. Yohe ,
- Stephen H. Brown ,
- Tracie L. Owens ,
- April D. Ross ,
- Eric B. Senzer ,
- Steven Pyl ,
- Rugved P. Pathare ,
- Lisa I-Ching Yeh ,
- Bradley R. Fingland ,
- Keith K. Aldous ,
- Anjaneya S. Kovvali ,
- Kendall S. Fruchey ,
- Charles L. Baker, Jr. ,
- Camden N. Henderson
Methods are provided for forming lubricant base stocks from feeds such as vacuum resid or other 510 C.+ feeds. A feed can be deasphalted and then catalytically and/or solvent processed to form lubricant base stocks, including bright stocks. The catalytic processing can correspond to processing in at least two stages. The amount of conversion performed in each stage can be varied to produce bright stocks with various properties.
INTEGRATED RESID DEASPHALTING AND GASIFICATION
Systems and methods are provided for integration of use deasphalted resid as a feed for fuels and/or lubricant base stock production with use of the corresponding deasphalter rock for gasification to generate hydrogen and/or fuel for the fuels and/or lubricant production process. The integration can include using hydrogen generated during gasification as a fuel to provide heat for solvent processing and/or using the hydrogen for hydroprocessing of deasphalted oil.