US 12,392,763 B2
Hydrocarbon contaminant detection using polymer film
Khawlah Kharashi, Thuwal (SA); Maha Nour, Thuwal (SA); and Khaled Nabil Salama, Thuwal (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA); and King Abdullah University of Science and Technology, Thuwal (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA); and King Abdullah University of Science and Technology, Thuwal (SA)
Filed on Apr. 17, 2023, as Appl. No. 18/135,535.
Prior Publication US 2024/0345061 A1, Oct. 17, 2024
Int. Cl. G01N 33/28 (2006.01)
CPC G01N 33/2888 (2013.01) 20 Claims
OG exemplary drawing
 
1. A hydrocarbon contaminant detection system comprising:
a sensor assembly comprising a cyclic olefin copolymer (COC) film comprising electrically conductive materials, the sensor assembly configured to complete an electrical circuit, the COC film configured to dissolve in a presence of a hydrocarbon contaminant to cause the electrical circuit to break;
a syringe configured to carry a lubrication oil sample to be tested using the sensor assembly, the syringe operable to contact the lubrication oil sample with the COC film of the sensor assembly;
a controller comprising:
one or more processors, and
a computer-readable medium storing instructions which when executed by the one or more processors cause the one or more processors to perform operations comprising operating the syringe to flow the lubrication oil sample onto the COC film of the sensor assembly at a pre-determined flowrate.