Detect gasoline pollution in the environment, how to operate the sulfur analyzer when doing gasoline analysis? Everyone can follow me with the following analysis.

The COD analysis method and the UV spectrum can be used to determine the content of the hydrocarbon in the liquid. The gasoline in the gas can be directly detected by hollow column chromatography, FID detector. The sulfur analyzer can be used in the soil as a headspace chromatographic method, which is the same as in gas detection. These tests are all national standards and can be found in the national standards for environmental protection tests.

If it is to determine the composition of gasoline by a sulfur analyzer, first, gasoline is not a substance but a low molecular hydrocarbon organic mixture, with thousands of components, and you need to test the concentration of that molecule. The main components of gasoline are hydrocarbon compounds (99.9%) containing trace metals (ppm grade). China's national standard on the analysis of gasoline hydrocarbon composition test using the United States astm standard reference formulation, with a sulfur analyzer to indicate its molecular content distribution. The sulfur analyzer is just a characterization parameter, not a specific indicator.

Sulfur analyzer analysis is a conditional experiment, that is, using a distillation range analyzer, under standard conditions, according to the provisions of the experimental conditions in the flask heating distillation of petroleum products, in the condenser tube condensation collected into the measuring cylinder, under the thermometer in the flask, Continuously measure the volume of the condensate oil at different temperatures during the temperature increase process, draw a temperature-volume curve, and identify the components of the petroleum component. The calculation of the molecular composition of the petroleum product can be roughly determined by the sulfur meter calculation. The exact test method is the internationally recognized PONA gas chromatographic method. PONA uses a specific column (cross-linked methyl silicone oil and other stationary phases) to separate the components of gasoline at a specified temperature, and to detect the contents of each component of the petroleum product using a FID detector. method. Its disadvantages are that the separation effect of individual components is not good, the qualitative analysis of olefins is poor, and the components above C12 are immature, but it is sufficient for gasoline. If necessary, the sulfur analyzer uses MS mass spectrometry to test individual components online. This analysis method has certain complexity.

The entire structure of the sulfur analyzer uses an integrated design, compact and harmonious, beautiful and generous. The furnace adopts a new thermal insulation structure, which is small in size and good in heat insulation. The gas flow in the furnace enters the cell from the top of the electrolytic cell, and the sulfur analyzer effectively prevents the backward flow of the electrolyte. Now most oil companies in China still use this as a benchmark for oil testing.

Palm Dates Processing Line

The Palm Dates Processing Line is considered one of the commercial and industrial food processing equipment. The Dates Washing and Cleaning Line from Colead is characterized by a very high productivity of up to 2 tons per hour, thanks to the high compatibility between mechanical operations within the machines that make up this line, and the line guarantees obtaining sterile, clean dates ready for any subsequent operations, whether packing or direct sales, and the line is also suitable for cleaning several materials such as citrus and vegetables.

The palm dates line is characterized by ease of cleaning and maintenance. The work begins with dates of different types and sizes, which is fed to the line through a conveyor belt, which transfers it to a specially designed vibratory cleaning machine to get rid of the impurities and sticks that may be found between the dates, then the dates pass through the quality control and manual inspection conveyor, which is equipped with overhead lights to facilitate the exclusion of any dates which are not valid by workers deployed on both sides of the line, then the dates are transferred via a conveyor belt to the water spray washing machine, which sprinkles cold or hot water over the dates with constant vibration to ensure that the dates are turned over and washed from all directions, then the washed dates pass through the air-drying process that aims to dry them from the washing water, then it goes to the drying and sterilization tunnel, which ensures that the dates are dried and sterilized from germs and agricultural pests, and it also softens the dates, which helps them to fill them later if desired. finally; the clean and sterilized dates are moved to the final product conveyor which give us the final product.

Palm Dates Washing Machine,Palm Dates Processing Machine,Palm Dates Size Grading Machine,Fruit Inspection Conveyor

Shandong Colead Intellectualized Food Processing Equipment Co.,LTD , https://www.colead-tech.com