Using stimulus to convert coal to mesophase pitch and carbon fibers
AssigneeCarbon Holdings Intellectual Properties, LLC
InventorCharles Agee Atkins
Life of this patent
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Abstract
A method for forming mesophase pitch can include applying a stimulus to a first amount of coal tar to form a first amount of mesophase pitch. The stimulus can include one or more of an electromagnetic field (“EMF”) or a magnetic field. The method can further include evaluating a characteristic of the first amount of mesophase pitch, changing a parameter of the stimulus in response to evaluating the characteristic of the first amount of mesophase pitch, and applying the stimulus exhibiting the changed parameters to a second amount of coal tar to form mesophase pitch.
Claims20
A method for forming mesophase pitch, comprising:
- continuously providing coal tar to a reactor;
- heating the coal tar to a temperature of from about 100° C. to about 300° C.;
- applying a stimulus to an amount of the coal tar, the stimulus comprising one or more of an electromagnetic field (“EMF”) or a magnetic field;
- and
- continuously forming mesophase pitch from the coal tar.
A method for processing coal tar, comprising:
- evaluating a characteristic of an amount of coal or an amount of coal tar formed from the amount of coal;
- selecting one or more parameters of a stimulus in response to evaluating the characteristic;
- heating the coal tar to a temperature of from about 100° C. to about 300° C.;
- and
- applying a stimulus having the one or more parameters to the amount of coal tar to form mesophase pitch, the stimulus comprising one or more of an electromagnetic field (“EMF”) or a magnetic field.
A method for forming mesophase pitch, comprising:
- applying a stimulus to a first amount of coal tar to form a first amount of mesophase pitch, the stimulus comprising one or more of an electromagnetic field (“EMF”) or a magnetic field;
- evaluating a characteristic of the first amount of mesophase pitch;
- heating the coal tar to a temperature of from about 100° C. to about 300° C.;
- changing a parameter of the stimulus in response to evaluating the characteristic of the first amount of mesophase pitch;
- and
- applying the stimulus exhibiting the changed parameters to a second amount of coal tar to form a second amount of mesophase pitch.
Dependencies are inferred from the claim text.