Integrated hydrocracking process
US-9850438-B2 · Dec 26, 2017 · US
Petroleum coke and production method for same
US9732278B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9732278-B2 |
| Application number | US-201415107736-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 19, 2014 |
| Priority date | Dec 24, 2013 |
| Publication date | Aug 15, 2017 |
| Grant date | Aug 15, 2017 |
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Abstract
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Provided are petroleum coke having a sufficiently small coefficient of thermal expansion (CTE) and yielding sufficiently suppressed puffing phenomenon and a method for stably producing the petroleum coke. Specifically, the method for producing the petroleum coke comprises the step of coking feedstock oil comprising light oil having an end point of distillation of 380° C. or less, and heavy oil having an initial boiling point of 200° C. or more and comprising 50% by mass or more of an aromatic component, sulfur content of 0.5% by mass or less, and nitrogen content of 0.2% by mass or less.
First claim
Opening claim text (preview).
The invention claimed is: 1. A method for producing needle coke, the method comprising the steps of: coking a feedstock oil comprising light oil and heavy oil at 400 to 600° C. to obtain raw coke, wherein the light oil has an initial boiling point of 180° C. or more and an end point of distillation of 380° C. or less, and the heavy oil has an initial boiling point of 200° C. or more, and comprises 50% by mass or more of an aromatic component, sulfur content of 0.5% by mass or less, and nitrogen content of 0.2% by mass or less, and calcining the raw coke at 1000 to 1500° C. to obtain the needle coke having sulfur content of 0.3% by mass or less and a coefficient of thermal expansion of 1.5×10 −6 /° C. or less. 2. The method according to claim 1 , wherein the feedstock oil comprises 10 to 30% by mass of the light oil. 3. The method according to claim 1 , wherein the light oil is derived from fluid catalytic cracking or delayed coking, and the heavy oil is obtained by fluid catalytic cracking. 4. Needle coke obtained by the method according to claim 1 . 5. The method according to claim 2 , wherein the light oil is derived from fluid catalytic cracking or delayed coking, and the heavy oil is obtained by fluid catalytic cracking. 6. The needle coke according to claim 4 , wherein the feedstock oil comprises 10 to 30% by mass of the light oil. 7. The needle coke according to claim 4 , wherein the light oil is derived from fluid catalytic cracking or delayed coking, and the heavy oil is obtained by fluid catalytic cracking. 8. The needle coke according to claim 6 , wherein the light oil is derived from fluid catalytic cracking or delayed coking, and the heavy oil is obtained by fluid catalytic cracking.
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Inventors
Classifications
Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material (cracking oils C10G) · CPC title
- C10B57/045Primary
containing mineral oils, bitumen, tar or the like or mixtures thereof · CPC title
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- What does patent US9732278B2 cover?
- Provided are petroleum coke having a sufficiently small coefficient of thermal expansion (CTE) and yielding sufficiently suppressed puffing phenomenon and a method for stably producing the petroleum coke. Specifically, the method for producing the petroleum coke comprises the step of coking feedstock oil comprising light oil having an end point of distillation of 380° C. or less, and heavy oil …
- Who is the assignee on this patent?
- Jx Nippon Oil & Energy Corp
- What technology area does this patent fall under?
- Primary CPC classification C10B57/045. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Aug 15 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).