заплесневелый
After more than 40 годы развития, the petrochemical industry has occupied an important position in the national economy and has gradually become one of the country’s pillar industries. With the substantial increase in petroleum consumption worldwide, petroleum resources are increasingly depleted, and the continuous increase of inferior oil products puts the refining industry facing severe tests. В настоящий момент, laboratory test methods are commonly used in the analysis of material components in the petrochemical industry, and the test results need to wait for more than 6 hours. Because the analysis cycle is too long, the analysis value lags, and the real-time and reliability of the various data of the product cannot meet the corresponding requirements. After research and analysis, NMR technology can be effectively used for oil detection, and accurate analysis values can be obtained in only 6-10 минуты, which not only greatly shortens the detection time, but most importantly, it can control product quality in time, which can effectively Avoid the appearance of unqualified products caused by manual analysis errors, thereby reducing production costs and reducing losses, and can be widely used in petrochemical industries.
Настольный ЯМР technology is based on the basic principles of NMR. The Benchtop NMR takes online samples from the process pipeline. The sample is drained through the permanent magnetic field system, and radio frequency pulse energy is emitted to the sample stream through the probe system. All rotating protons in the sample process and produce energy level transitions. . When the radio frequency pulse signal is removed, the proton releases energy and eventually returns to its original axis. During this process, they will generate a free induction attenuation signal that decays exponentially, and the probe system induces data acquisition and processing by the Benchtop NMR and uploads it to the computer system. The signal is filtered, processed by a computer, and converted into a frequency domain map. The frequency domain data is analyzed and forecasted by a chemometric calibration model to produce the analysis results of the chemical composition and other physical characteristics required by the user.
В настоящий момент, most of the traditional online process analyzers we use are improved from laboratory instruments. Due to the limitation of detection principles, one instrument can only detect one parameter. If you need to measure multiple parameters, you need to purchase multiple instruments. The equipment investment is large, the maintenance amount is large, and the maintenance frequency is high. The Benchtop NMR can realize the analysis of material components and online detection of process parameters in the petrochemical industry, with fast analysis speed, accurate and reliable analysis results, and timely feedback to the DCS system, providing real-time online analysis and quality card edge control for the refining and petrochemical industries. Distillation, catalytic reforming, ethylene cracking unit, refined oil blending and optimization provide fast and accurate composition and index analysis results.
