US 11,668,666 B2
Method for early detection of carbonization during drying of organic material
Yong Joon Choi, Daejeon (KR); Won Chan Park, Daejon (KR); and Kyung Hyun Song, Daejeon (KR)
Assigned to LG Chem, Ltd.
Appl. No. 16/462,061
Filed by LG Chem, Ltd., Seoul (KR)
PCT Filed Feb. 23, 2018, PCT No. PCT/KR2018/002270
§ 371(c)(1), (2) Date May 17, 2019,
PCT Pub. No. WO2018/236026, PCT Pub. Date Dec. 27, 2018.
Claims priority of application No. 10-2017-0079445 (KR), filed on Jun. 23, 2017.
Prior Publication US 2019/0331619 A1, Oct. 31, 2019
Int. Cl. G01N 25/48 (2006.01); F26B 3/02 (2006.01); F26B 23/02 (2006.01); G01K 11/00 (2006.01)
CPC G01N 25/482 (2013.01) [F26B 3/02 (2013.01); F26B 23/02 (2013.01); G01K 11/003 (2013.01)] 10 Claims
OG exemplary drawing
 
1. 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.