I. Instrument Introduction

1. Summary

Environment pollution is attracting more and more governments and public concern. The cry for ecological environment and atmospheric environment protection is increasingly louder. The key culprit to atmospheric destruction and pollution is discharge of CO₂ and SO₂, which are from combustion of power fuels. Lowering down the sulfur content in the gasoline, diesel oil, heavy oils used in vehicles, ships, and airplanes will highly reduce pollution to atmosphere. Europe and our government have promulgated a series of standards on sulfur content of petroleum products to restrict its production and discharge. SO₂ may also cause catalyst poisoning in petrochemical industry and form acid rain in the atmosphere.

The instrument is specially designed to determine sulfur content in the petroleum products. Adopts energy-dispersive principle, and with electrical, mechanical and microprocessor integration design, so it is rapid and accurate. It can meet the requirements of National Standard GB/T 17040 and GB/T11140 on repeatability and reproducibility. It provides a measure to determine sulfur content during petroleum or petrochemical production process.

2. Purpose

(1) It can be used to determine mass% of total sulfur in the crude petroleum, petroleum, heavy oil, diesel oil, gasoline, and naphtha.

(2) It can be used to determine total sulfur content in the products of coal chemical industry, such as primary benzene.

(3) It can be used to determine total sulfur or sulfide in other liquid or solid powder samples.

3. Instrument characteristics

(1) With electrical, mechanical and microprocessor integration design, so it is compact and beautiful;

(2) It can determine various products and in a wide measurement range. It is rapid for analysis and it only need little standard sample.

(3) Adopts fluorescence intensity ratio analysis methods, it can make correction to temperature and pressure automatically .

(4) 8-inch (1024*768)capacitive touch screen;

(5) It can determine its working state and electric parameters by making repeatability test and spectrum scan using reference samples.

(6) It takes disposable sample cell with Mylar film, so it can avoid cross contamination. Sample cell is made by a multifunction pressure shaping device, so it is rapid and convenient.

(7) The sample holder is installed on a slide rail,It is convenient and it can avoid any contamination to detection system.

(8) It can save large quantity of test data. You can browse test data and calibration curves at any time.

(9) It uses a thermal printer, so it is easy to replace printing paper.

(10) Tightly protection measures to avoid oil leakage. The sample cell is placed on the leakage protection device. The sample cell can enter into the detection system together with the leakage protection device only during sample analysis procedures.

(11) Its safe X-ray protection measures can keep people from injury of X-ray radiation.

4. Main technical specification and parameters

(1) Measurement range: 10ppm to 5%;

(2) Repeatability (r): ＜0.4347 X^0.6446;

(3) Reproducibility (R): ＜1.9182 X^0.6446;

(4) Detection limit: 10 ppm;

(5) Oil sample quantity: 5 ml~ 6ml;

(6) Measurement time: it can be set to 60s or 120s or 180s ;

(7) It can make determination automatically for single sample. Replication times can set 1,2, 3, 5, 10 at random; it will show average value and standard deviation at end of measurement.

(8) Calibration curve numbers: it can save 10 calibration curves.

(9) Working condition:

a. Ambient temperature: 10～30℃;

b. Relative humidity: ≦85% (30 ℃);

(10) Power supply: AC 220V±20V, 50 Hz/60Hz; Rated power: 50 W;

(11) Size and weight: 460mm×260mm×260mm; 12 kg;