A system and a method for storing biological feedstock

A method for storing biological feedstock suitable for use in renewable hydrocarbon production, the method comprising:

• supplying biological material containing the biological feedstock to one or more receiving tanks;
• transferring, from the one or more receiving tanks to one or more storage tanks, the biological feedstock separated from the biological material;
• transferring, from the one or more receiving tanks to one or more slop tanks, sludge deposited on a bottom portion of each receiving tank,
• transferring, from the one or more slop tanks to the one or more receiving tanks, biological feedstock separated from the sludge;
• and
• transferring, from the one or more storage tanks to the one or more slop tanks, sludge deposited on a bottom portion of each storage tank.

A method for producing a renewable hydrocarbon, the method comprising:

• receiving biological material containing biological feedstock;
• storing the biological feedstock, and subsequently:
• producing the renewable hydrocarbon from the biological feedstock, where the method for storing the biological feedstock includes:
• supplying the biological material containing the biological feedstock to one or more receiving tanks;
• transferring, from the one or more receiving tanks to one or more storage tanks, the biological feedstock separated from the biological material;
• transferring, from the one or more receiving tanks to one or more slop tanks, sludge deposited on a bottom portion of each receiving tank;
• transferring, from the one or more slop tanks to the one or more receiving tanks, biological feedstock separated from the sludge;
• and
• transferring, from the one or more storage tanks to the one or more slop tanks, sludge deposited on a bottom portion of each storage tank.

A system for storing biological feedstock, the system comprising:

• one or more receiving tanks configured to receive biological material containing the biological feedstock from a source external to the system, one or more storage tanks, and one or more slop tanks;
• a first material transfer system configured to transfer, from the one or more receiving tanks to the one or more storage tanks, the biological feedstock separated from the biological material;
• a second material transfer system configured to transfer, from the one or more receiving tanks to the one or more slop tanks, sludge deposited on a bottom portion of each receiving tank;
• a third material transfer system configured to transfer, from the one or more slop tanks to the one or more receiving tanks, biological feedstock separated from the sludge;
• and
• a fourth material transfer system configured to transfer, from the one or more storage tanks to the one or more slop tanks, sludge deposited on a bottom portion of each storage tank.

A system for producing renewable hydrocarbons, the system comprising:

• a storage system configured to receive biological material and to store biological feedstock contained by the biological material;
• a delivery system configured to remove the biological feedstock from the storage system;
• and
• an oil refinery configured to receive the biological feedstock from the delivery system and to produce the renewable hydrocarbons from the biological feedstock, wherein the storage system includes:
• one or more receiving tanks configured to receive the biological material containing the biological feedstock from a source external to the storage system, one or more storage tanks, and one or more slop tanks;
• a first material transfer system configured to transfer, from the one or more receiving tanks to the one or more storage tanks, the biological feedstock separated from the biological material;
• a second material transfer system configured to transfer, from the one or more receiving tanks to the one or more slop tanks, sludge deposited on a bottom portion of each receiving tank;
• a third material transfer system configured to transfer, from the one or more slop tanks to the one or more receiving tanks, biological feedstock separated from the sludge;
• and
• a fourth material transfer system configured to transfer, from the one or more storage tanks to the one or more slop tanks, sludge deposited on a bottom portion of each storage tank.