Method for hydrocracking, method for producing hydrocracked oil, hydrocracking device, and device for producing hydrocracked oil
The present invention provides a method for hydrocracking of petroleum heavy oil containing a heavy metal component, comprising a supplying step of supplying a raw material slurry containing the petroleum heavy oil and an iron-based catalyst as well as a hydrogen gas to a hydrocracking reactor; a hydrocracking step of hydrocracking the petroleum heavy oil in the hydrocracking reactor; a recovering step of recovering a residual oil component containing the iron-based catalyst from a product after the hydrocracking step; a disintegrating step of disintegrating the iron-based catalyst of the recovered residual oil component to acquire a disintegrated iron-based catalyst; and a resupplying step of resupplying a processed residual oil component containing the disintegrated iron-based catalyst to the hydrocracking reactor. At the disintegrating step, the iron-based catalyst may be pulverized by a pulverizing machine. The iron-based catalyst may be limonite.
1. A method for hydrocracking of petroleum heavy oil containing a heavy metal component, the method comprising:
supplying a raw material slurry comprising the petroleum heavy oil and an iron-based catalyst, and a hydrogen gas to a hydrocracking reactor;
hydrocracking the petroleum heavy oil in the hydrocracking reactor;
recovering a residual oil component comprising the iron-based catalyst from a product after the hydrocracking;
disintegrating the iron-based catalyst of the recovered residual oil component to acquire a disintegrated iron-based catalyst; and
resupplying a processed residual oil component comprising the disintegrated iron-based catalyst to the hydrocracking reactor,
wherein the disintegrating comprises pulverizing the iron-based catalyst by a pulverizing machine.
2. The method for hydrocracking according to claim 1 , wherein the iron-based catalyst is limonite.
3. A method for hydrocracking of petroleum heavy oil containing a heavy metal component, the method comprising:
supplying a raw material slurry comprising the petroleum heavy oil and an iron-based catalyst and a hydrogen gas to a hydrocracking reactor;
hydrocracking the petroleum heavy oil in the hydrocracking reactor;
recovering a residual oil component comprising the iron-based catalyst from a product after the hydrocracking;
disintegrating the iron-based catalyst of the recovered residual oil component to acquire a disintegrated iron-based catalyst; and
resupplying a processed residual oil component comprising the disintegrated iron-based catalyst to the hydrocracking reactor,
wherein the disintegrating produces a disintegrated iron-based catalyst that has an average particle size of from 0.1 μm to 5 μm.
4. A method for hydrocracking of petroleum heavy oil containing a heavy metal component, the method comprising:
supplying a raw material slurry comprising the petroleum heavy oil and an iron-based catalyst, and a hydrogen gas to a hydrocracking reactor;
hydrocracking the petroleum heavy oil in the hydrocracking reactor;
recovering a residual oil component comprising the iron-based catalyst from a product after the hydrocracking;
disintegrating the iron-based catalyst of the recovered residual oil component to acquire a disintegrated iron-based catalyst; and
resupplying a processed residual oil component comprising the disintegrated iron-based catalyst to the hydrocracking reactor,
wherein the disintegrating comprises screening the disintegrated iron-based catalyst to provide a catalyst having a maximum particle diameter equal to or less than 30 μm.
5. The method for hydrocracking according to claim 1 , wherein a content of the iron-based catalyst relative to the petroleum heavy oil in the raw material slurry is from 0.1% by mass to 3% by mass in terms of iron.
6. The method for hydrocracking according to claim 1 , wherein a supply amount of the heavy reaction product contained in the processed residual oil component relative to the petroleum heavy oil in the raw material slurry is from 10% by mass to 80% by mass.
7. The method for hydrocracking according to claim 1 , wherein a supply amount of the disintegrated iron-based catalyst relative to the petroleum heavy oil in the raw material slurry is from 1% by mass to 10% by mass.
8. A hydrocracking device for petroleum heavy oil containing a heavy metal component, comprising:
a hydrocracking means hydrocracking the petroleum heavy oil by using a raw material slurry containing the petroleum heavy oil and an iron-based catalyst as well as a hydrogen gas;
a disintegrating means disintegrating the iron-based catalyst after hydrocracking the petroleum heavy oil by the hydrocracking means to acquire a disintegrated iron-based catalyst; and
a resupplying means resupplying the disintegrated iron-based catalyst to the hydrocracking means.
9. The hydrocracking device according to claim 8 , wherein the disintegrating means is a pulverizing machine.
10. The hydrocracking device according to claim 8 , further comprising a screening means for screening the disintegrated iron-based catalyst before resupply to the hydrocracking means to make the maximum particle diameter thereof equal to or less than 30 μm.
11. The method for hydrocracking according to claim 3 , wherein a supply amount of the heavy reaction product contained in the processed residual oil component relative to the petroleum heavy oil in the raw material slurry is from 10% by mass to 80% by mass.
12. The method for hydrocracking according to claim 4 , wherein a supply amount of the heavy reaction product contained in the processed residual oil component relative to the petroleum heavy oil in the raw material slurry is from 10% by mass to 80% by mass.
13. The method for hydrocracking according to claim 3 , wherein a supply amount of the disintegrated iron-based catalyst relative to the petroleum heavy oil in the raw material slurry is from 1% by mass to 10% by mass.
14. The method for hydrocracking according to claim 4 , wherein a supply amount of the disintegrated iron-based catalyst relative to the petroleum heavy oil in the raw material slurry is from 1% by mass to 10% by mass.