The fully automatic trace residual carbon analyzer is an instrument used to accurately determine the residual carbon content in petroleum products, fuels, and other organic substances. Its core function is to achieve full process automation operation through programmed control, reduce human error, and improve detection efficiency and result reliability.
Based on the principle of combustion method, it will haverepresentativeThe petroleum product sample is placed in a dedicated sample tube and heated to around 500 ℃ according to a preset program under the protection of inert gases such as nitrogen. The organic components in the sample are oxidized into carbon dioxide and water vapor, which are carried away by nitrogen gas flow, while inorganic carbides and metal oxides form residual carbon. After the combustion is completed, the instrument automatically collects the residue, measures its mass through a high-precision weighing system, and then automatically calculates the percentage or ppm value of residual carbon based on the ratio of the residue mass to the original sample mass, and displays the result.
operating procedure
Instrument inspection: Confirm that the power and gas connections are normal, and check whether the core components such as the heating furnace, temperature control system, and timer are intact.
Sample preparation: Select representative samples to ensure they are free from contamination and meet the measurement requirements.
Equipment preparation: Prepare clean porcelain crucibles, crucible covers, tweezers, analytical scales, dryers, etc.
Start the instrument: Turn on the main power switch, start the instrument control system, enter the operation interface, and set the experimental parameters.
Preheating furnace: Start the preheating program of the heating furnace and hold it for 10-15 minutes after the temperature stabilizes and reaches the set value.
Sample weighing and loading: Weigh the sample using a constant weight ceramic crucible, gently place it on the sample rack in the heating furnace, and ensure that it is placed steadily and centered.
Start the experimental program: After confirming that the sample and instrument status are correct, start the experimental running program, and the instrument will start heating according to the preset parameters.
Stop heating and cooling: After the experimental procedure is completed, the instrument automatically stops heating, and the crucible is taken out and placed in a dryer to cool to room temperature.
Residual carbon weighing and data organization: Weigh the total mass of the crucible and residual carbon, calculate the residual carbon content of the sample, and record the instrument parameters and abnormal situations during the experimental process.