Bright stock production from low severity resid deasphalting

A method for making lubricant base stock, comprising:

• performing solvent deasphalting using a C4+solvent under effective solvent deasphalting conditions on a feedstock having a T5 boiling point of at least 370° C., the effective solvent deasphalting conditions producing a yield of C4+deasphalted oil of at least about 50 wt% of the feedstock;
• selecting first effective hydroprocessing conditions to hydroprocess the C4+deasphalted oil;
• hydroprocessing at least a portion of the C4+deasphalted oil under first effective hydroprocessing conditions to form a hydroprocessed effluent having a CCR content of 1 wt% or less, a sulfur content of 100 wppm or less, and a nitrogen content of 100 wppm or less comprising a first amount of conversion of the at least a portion of the C4+deasphalted oil relative to 370° C., the at least a portion of the C4+deasphalted oil having an aromatics content of at least about 50 wt%, the first effective hydroprocessing conditions comprising exposing the C4+deasphalted oil to a supported catalyst, the supported catalyst comprising a zeolitic support;
• separating the hydroprocessed effluent to form at least a fuels boiling range fraction and a hydroprocessed bottoms fraction;
• hydroprocessing at least a portion of the hydroprocessed bottoms fraction under second effective hydroprocessing conditions, the second effective hydroprocessing conditions comprising:
• hydrocracking the at least a portion of the hydroprocessed bottoms fraction under hydrocracking conditions to form a hydrocracked effluent,
• catalytically dewaxing at least a portion of the hydrocracked effluent under catalytic dewaxing conditions comprising a second amount of conversion of the at least a portion of the C4+deasphalted oil relative to 370°C. to form a second hydroprocessing effluent comprising a catalytically dewaxed effluent, and
• performing aromatic saturation on the catalytically dewaxed effluent prior to solvent dewaxing;
• and
• solvent dewaxing at least a portion of the hydroprocessed bottoms fraction to form a solvent dewaxed effluent, the solvent dewaxed effluent comprising a 950° F.+ (510° C.+) portion having a kinematic viscosity at 100° C. of 30 cSt or more, a viscosity index (VI) of at least 80, a pour point of −6° C. or less, and a cloud point of −2° C. or less.

A method for making a haze free bright stock, comprising:

• performing solvent deasphalting using a C4 or C5 solvent under effective solvent deasphalting conditions on a feedstock having a T5 boiling point of at least 370° C., the effective solvent deasphalting conditions producing a yield of C4 or C5 deasphalted oil of at least about 50 wt% of the feedstock;
• selecting first effective hydroprocessing conditions to hydroprocess a C4 or C5 deasphalted oil;
• hydroprocessing at least a portion of the C4 or C5 deasphalted oil under first effective hydroprocessing conditions to form a hydroprocessed effluent having a sulfur content of 100 wppm or less and a nitrogen content of 100 wppm or less comprising a first amount of conversion of the at least a portion of the C4 or C5 deasphalted oil relative to 370° C., the at least a portion of the C4 or C5 deasphalted oil having an aromatics content of at least about 50 wt%, the first effective hydroprocessing conditions comprising exposing the C4 or C5 deasphalted oil to a supported catalyst, the supported catalyst comprising a zeolitic support;
• separating the hydroprocessed effluent to form at least a fuels boiling range fraction and a hydroprocessed bottoms fraction;
• hydroprocessing at least a portion of the hydroprocessed bottoms fraction under second effective hydroprocessing conditions, the second effective hydroprocessing conditions comprising:
• hydrocracking the at least a portion of the hydroprocessed bottoms fraction under hydrocracking conditions to form a hydrocracked effluent,
• catalytically dewaxing at least a portion of the hydrocracked effluent under catalytic dewaxing conditions comprising a second amount of conversion of the at least a portion of the C4 or C5 deasphalted oil relative to 370° C., to form a second hydroprocessing effluent comprising a catalytically dewaxed effluent, and
• performing aromatic saturation on the catalytically dewaxed effluent prior to solvent extracting;
• and
• solvent extracting at least a portion of the catalytically dewaxed effluent to form a solvent processed effluent,
• wherein the solvent processed effluent comprises a haze free bright stock having a kinematic viscosity at 100° C. of 30 cSt or more, a viscosity index (VI) of at least 80, a pour point of −6° C. or less, and a cloud point of −2° C. or less.