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US 2025/0115767 A1Published application
Methods of Producing Carbon Blacks from Low-Yielding Feedstocks and Products Made from Same
AssigneeCabot Corporation
InventorsDavid M. Matheu, Geoffrey D. Moeser, Theis F. Clarke, Thomas E. McElwain, David S. Crocker, Akshay Gopan, Frederick H. Rumpf, William M. Porteous
Life of this patent
Estimating the term…
Abstract
Methods to produce carbon black from low-yielding carbon black feedstocks are described. Carbon blacks produced from these carbon black feedstocks are further described. The advantages achieved with the methods are further described.
Claims25
A method for producing a carbon black comprising:
- introducing a heated gas stream into a furnace carbon black reactor;
- combining at least one first carbon black feedstock with said heated gas stream to form a reaction stream wherein the at least one first carbon black feedstock comprises at least 10 wt. % of the total feedstock;
- combining downstream at least one low-yielding carbon black feedstock to said reaction stream present to form the carbon black, wherein the at least one low-yielding carbon black feedstock comprises at least 10 wt. % of the total feedstock;
- and
- recovering the carbon black in the reaction stream, wherein the first carbon black feedstock is a liquid at room temperature and pressure, and has the following properties:
- a Bureau of Mines Correlation Index (BMCI)≥100,
- an atomic H:C ratio of ≤1.23, and
- a specific gravity >1.02;
- and wherein the low-yielding carbon black feedstock has at least one of the following properties:
- a Bureau of Mines Correlation Index (BMCI)<100, or
- an atomic H:C ratio of >1.23, or
- a specific gravity of ≤1.02, or
- is a gas at room temperature and pressure, and
- wherein the at least one low-yielding carbon black feedstock is pyrolysis oil and is present in an amount of from 10 wt % to 90 wt %, based on said total feedstock, and the at least one first carbon black feedstock is present in an amount of from 10 wt % to 90 wt % based on said total feedstock.
11 more elements
A method for producing a carbon black comprising:
- introducing a heated gas stream into a furnace carbon black reactor;
- combining at least one first carbon black feedstock with said heated gas stream to form a reaction stream wherein the at least one first carbon black feedstock comprises at least 10 wt. % of the total feedstock;
- combining downstream at least one low-yielding carbon black feedstock to said reaction stream present to form the carbon black, wherein the at least one low-yielding carbon black feedstock comprises at least 10 wt. % of the total feedstock;
- and
- recovering the carbon black in the reaction stream, wherein the first carbon black feedstock is a liquid at room temperature and pressure, and has the following properties:
- a Bureau of Mines Correlation Index (BMCI)≥100,
- an atomic H:C ratio of ≤1.23, and
- a specific gravity >1.02;
- and wherein the low-yielding carbon black feedstock has at least one of the following properties:
- a Bureau of Mines Correlation Index (BMCI)<100, or
- an atomic H:C ratio of >1.23, or
- a specific gravity of ≤1.02, or
- is a gas at room temperature and pressure, and
- wherein the at least one low-yielding carbon black feedstock is ethylene or natural gas or both and is present in an amount of from 30 wt % to 90 wt %, based on said total feedstock, and the at least one first carbon black feedstock is present in an amount of from 10 wt % to 70 wt % based on said total feedstock.
11 more elements
A method for producing a carbon black comprising:
- introducing a heated gas stream into a furnace carbon black reactor;
- combining at least one first carbon black feedstock with said heated gas stream to form a reaction stream wherein the at least one first carbon black feedstock comprises at least 10 wt. % of the total feedstock;
- combining downstream at least one low-yielding carbon black feedstock to said reaction stream present to form the carbon black, wherein the at least one low-yielding carbon black feedstock comprises at least 10 wt. % of the total feedstock;
- and
- recovering the carbon black in the reaction stream, wherein the first carbon black feedstock is a liquid at room temperature and pressure, and has the following properties:
- a Bureau of Mines Correlation Index (BMCI)≥100,
- an atomic H:C ratio of ≤1.23, and
- a specific gravity >1.02;
- and wherein the low-yielding carbon black feedstock has at least one of the following properties:
- a Bureau of Mines Correlation Index (BMCI)<100, or
- an atomic H:C ratio of >1.23, or
- a specific gravity of ≤1.02, or
- is a gas at room temperature and pressure, and
- wherein the at least one low-yielding carbon black feedstock is bio-based feedstock and is present in an amount of from 10 wt % to 90 wt %, based on said total feedstock, and the at least one first carbon black feedstock is present in an amount of from 10 wt % to 90 wt % based on said total feedstock.
11 more elements
A method for producing a carbon black comprising:
- introducing a heated gas stream into a furnace carbon black reactor;
- combining a blend comprising at least one first carbon black feedstock and at least one low-yielding carbon black feedstock with said heated gas stream to form a reaction stream to form the carbon black, wherein the at least one low-yielding carbon black feedstock comprises at least 10 wt. % of the total feedstock and the at least one first carbon black feedstock comprises at least 10 wt. % of the total feedstock;
- and
- recovering the carbon black in the reaction stream, wherein the first carbon black feedstock is a liquid at room temperature and pressure, and has the following properties:
- a Bureau of Mines Correlation Index (BMCI)≥100,
- an atomic H:C ratio of ≤1.23, and
- a specific gravity >1.02;
- and wherein the low-yielding carbon black feedstock has at least one of the following properties:
- a Bureau of Mines Correlation Index (BMCI)<100, or
- an atomic H:C ratio of >1.23, or
- a specific gravity of ≤1.02, or
- is a gas at room temperature and pressure, and
- wherein the at least one low-yielding carbon black feedstock is pyrolysis oil and is present in an amount of from 10 wt % to 90 wt %, based on said total feedstock, and the at least one first carbon black feedstock is present in an amount of from 10 wt % to 90 wt % based on said total feedstock.
10 more elements
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Dependencies are inferred from the claim text.