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Analysis of trace chlorine content in petrochemical products

2022-07-21 10:22:15   

Application Overview
   In the process of petroleum refining and chemical production, if the raw materials contain excessive chlorine, it will not only accelerate the consumption of catalysts, but also corrode equipment, easily causing losses and accidents. Therefore, it is necessary to control the chlorine content of raw materials, products and production processes. The traditional microcoulometric method is cumbersome to operate, the chlorine conversion rate is affected by various conditions of the instrument, and the accuracy and repeatability are poor. The latest standard "NB/SH/T0977-2019 Determination of Chlorine Content in Light Oil Products by Single Wavelength Dispersive X-ray Fluorescence Spectrometer", the detection limit of chlorine is low, and the results are stable and reliable. More and more analysts tend to use single-wavelength X-ray fluorescence spectrometer to analyze trace chlorine content in petrochemical products.

Application data
（1）linearity

（2） Repeatability
















（3）Analysis of high sulfur and low chlorine content in crude oil or residual oil



Accuracy

	Content of  sulfur	S-0.7%	S-1.2%	S-2.2%	S-2.7%
Content of chlorin-2mg/kg	First	2.2	2.2	2.5	2.1
	Second	2	2.7	2.1	1.6
	Third	2.5	2.4	2.4	1.6

 
 
 
 
 
 

Note: 
   White oil matrix, the standard added sulfur content is 0.7%, 1.2%, 2.2%, 2.7%, and the chlorine content is 2.0mg/kg. The chlorine content in the high-sulfur sample is obtained by DUBHE-1710 and HSLC software analysis.


Features and advantages
   Ultra-low detection limit


monochromatic focused excitation makes the detection limit of chlorine element reach 0.1mg/kg.
 
   Stability


The optical path is locked and does not touch the sample, which is stable and reliable for a long time.
 
   Scalability


Patented HSLC technology, special optical path and software to correct the effect of high sulfur on low chlorine.
 
   Low consumption


there is no gas, solvent consumption, maintenance and analysis’s costs are low.




Original statement:
This article is the original work of ancoren company except for the quotation. If it is forwarded and quoted, the source must be indicated, otherwise it may involve infringement. For more detailed technical information, please consult the staff of Ancoren.

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