Method for early detection of carbonization during drying of organic material
AssigneeLG Chem, Ltd.
InventorsYong Joon Choi, Won Chan Park, Kyung Hyun Song
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Abstract
The present invention relates to a method for early detection of carbonization during the drying of an organic material. The method of the present invention measures temperature variation per unit time of exhaust gas containing water (H2O), carbon monoxide (CO), or carbon dioxide (CO2), which are to be generated by the pyrolysis of an organic material, and the concentration of carbon monoxide/carbon dioxide of the exhaust gas, so as to determine the occurrence of carbonization therethrough, thereby enabling early detection of carbonization within a dryer.
Claims10
A method for the early detection of carbonization during a drying process of an organic material, comprising:
- (1) hot-air drying the organic material in a dryer, wherein the hot-air drying produces an exhaust comprising one or more of water (H2O), carbon monoxide (CO), and carbon dioxide (CO2);
- and
- at least one of:
- (2) detecting a change in temperature per unit time of the exhaust;
- or
- (3) detecting a concentration of carbon monoxide in the exhaust;
- or
- (4) detecting a concentration of carbon dioxide in the exhaust,
- determining that carbonization has occurred when the change in temperature per unit time of the exhaust is 0.5° C./min or more.
A method for the early detection of carbonization during a drying process of an organic material, comprising:
- (1) hot-air drying the organic material in a dryer, wherein the hot-air drying produces an exhaust comprising one or more of water (H2O), carbon monoxide (CO), and carbon dioxide (CO2);
- and
- at least one of:
- (2) detecting a change in temperature per unit time of the exhaust;
- or
- (3) detecting a concentration of carbon monoxide in the exhaust;
- or
- (4) detecting a concentration of carbon dioxide in the exhaust,
- determining that carbonization has occurred when the concentration of carbon monoxide exceeds 2 ppm and when a change in the concentration of carbon dioxide is 10% or more.
Dependencies are inferred from the claim text.