Anode grade coke production

A process for preparing anode grade coke from a petroleum residue feedstock containing sulfur and metal contaminants, comprising:

• hydrotreating a first process stream consisting essentially of a first minor portion of the residue feedstock to produce a hydrotreated residue stream of reduced sulfur and metal content;
• solvent deasphalting a second major portion of the residue feedstock to produce a deasphalted oil stream, a resin stream essentially free of asphaltenes and an asphaltene-rich stream;
• feeding the hydrotreated residue stream together with a second process stream comprising the resin stream and essentially free of hydrotreated material to a delayed coker;
• heating the hydrotreated residue stream and the second process stream in the delayed coker under delayed coking conditions to form a batch of the anode grade coke.

A process for preparing anode grade coke from a petroleum residue feedstock containing sulfur and metal contaminants and essentially free of hydrotreated material, comprising:

• solvent deasphalting a first process stream consisting essentially of the residue feedstock to produce a deasphalted oil stream, a resin stream essentially free of asphaltenes and an asphaltene-rich stream;
• hydrotreating a second process stream consisting essentially of the resin stream to produce a hydrotreated resin-containing stream of reduced sulfur and metal content;
• feeding a third process stream comprising the hydrotreated resin-containing stream to a delayed coker;
• heating the third process stream in the delayed coker under delayed coking conditions to form a batch of the anode grade coke.

A process for preparing anode grade coke from a petroleum residue feedstock containing sulfur and metal contaminants and essentially free of hydrotreated material, comprising:

• solvent deasphalting a first process stream consisting essentially of the residue feedstock to produce a deasphalted oil stream, a resin stream essentially free of asphaltenes and an asphaltene-rich stream;
• hydrotreating a second process stream consisting essentially of the resin stream and a minor portion of the deasphalted oil stream to produce a hydrotreated resin-containing stream of reduced sulfur and metal content;
• feeding a third process stream comprising the hydrotreated resin-containing stream to a delayed coker;
• heating the third process stream in the delayed coker under delayed coking conditions to form a batch of the anode grade coke.

A process for preparing anode grade coke from a petroleum residue feedstock containing sulfur and metal contaminants and essentially free of hydrotreated material, comprising:

• hydrotreating a first process stream consisting essentially of a major portion of the residue feedstock to produce a hydrotreated residue stream of reduced sulfur and metal content;
• solvent deasphalting a second process stream comprising the hydrotreated residue stream and a minor portion of the residue feedstock essentially free of hydrotreating to produce a deasphalted oil stream, a resin stream essentially free of asphaltenes and an asphaltene-rich stream;
• feeding a third process stream comprising the resin stream to a delayed coker;
• heating the third process stream in the delayed coker under delayed coking conditions to form a batch of the anode grade coke.

A process for preparing anode grade coke from a petroleum residue feedstock containing sulfur and metal contaminants and essentially free of hydrotreated material, comprising:

• hydrotreating a first process stream consisting essentially of a major portion of the residue feedstock to produce a hydrotreated residue stream of reduced sulfur and metal content;
• solvent deasphalting a second process stream comprising the hydrotreated residue stream and a minor portion of the residue feedstock to produce a deasphalted oil stream comprising resin and an asphaltene-rich stream;
• feeding a third process stream comprising the deasphalted oil stream to a delayed coker;
• heating the third process stream in the delayed coker under delayed coking conditions to form a batch of the anode grade coke.

A process for preparing anode grade coke from a petroleum residue feedstock containing sulfur and metal contaminants and essentially free of hydrotreated material, comprising:

• hydrotreating a first process stream consisting essentially of a minor portion of the residue feedstock to produce a hydrotreated residue stream of reduced sulfur and metal content;
• solvent deasphalting a major portion of the residue feedstock to produce a deasphalted oil stream comprising resin and an asphaltene-rich stream;
• feeding the hydrotreated residue stream together with a second process stream comprising the deasphalted oil stream to a delayed coker;
• heating the hydrotreated residue stream and the second process stream in the delayed coker under delayed coking conditions to form a batch of the anode grade coke.

A process for preparing anode grade coke from a petroleum residue feedstock containing sulfur and metal contaminants and essentially free of hydrotreated material, comprising:

• solvent deasphalting a first process stream consisting essentially of the residue feedstock to produce a deasphalted oil stream comprising resin and an asphaltene-rich stream;
• hydrotreating a second process stream consisting essentially of the deasphalted oil stream to produce a hydrotreated residue stream of reduced sulfur and metal content;
• feeding a third process stream comprising the hydrotreated residue stream to a delayed coker;
• heating the third process stream in the delayed coker under delayed coking conditions to form a batch of the anode grade coke.