Name: YEK-S Sulfur Analyzer
Brand: YEKGLOBAL
SKU: 59
Availability: InStock

Question 1

What is a sulfur analyzer and what is it used for?

Accepted Answer

A sulfur analyzer precisely measures the sulfur (S) content in solid and liquid fuels. Sulfur content in coal, coke, petroleum products, cement raw materials, and biomass fuels is critical for fuel quality control, environmental compliance (SOx emissions), and raw material acceptance testing. YEK-S provides reliable, fast, and repeatable measurements using an inductive furnace combined with an infrared (IR) detector.

Question 2

What is the operating principle of the YEK-S Sulfur Analyzer?

Accepted Answer

YEK-S employs the combustion-infrared (Combustion-IR) method. The sample is combusted in a high-frequency inductive furnace at approximately 1350-1400°C in a pure oxygen atmosphere; the resulting SO₂ is measured by an infrared cell. The measured SO₂ concentration is converted to the sulfur percentage of the sample. Compatible with ASTM D4239, ISO 19579, and GB/T 214 standards; analysis time is 2-4 minutes.

Question 3

What is the measurement range and accuracy of the YEK-S Sulfur Analyzer?

Accepted Answer

YEK-S covers 50 ppm to 5% S by weight (trace model: 1-200 ppm; standard model: 0.01-5%). Reproducibility per ASTM D4239 is 0.01% S absolute or better. Accuracy depends on calibration with certified reference material (SRM); typical relative deviation is ±3%.

Question 4

Which sample types can be analyzed with YEK-S?

Accepted Answer

Bituminous coal, lignite, anthracite, coke, petroleum coke, biomass, RDF, heavy fuel oil, diesel, cement clinker, iron-steel ores, and gypsum are all suitable for analysis. Sample format is ground powder (0.1-1 g, <250 µm) or liquid via a sealed capsule method. Appropriate ceramic crucibles must be used to prevent cross-contamination.

Question 5

Which industries and processes consider sulfur analysis critical?

Accepted Answer

Power plants: high-sulfur coal increases SO₂ emissions and can breach legal thresholds (IED/local regulations), overloading FGD systems. Steel industry: coke sulfur content directly affects steel quality. Cement sector: elevated S in raw materials disrupts clinker formation. Petroleum refineries require mandatory QC at production exit to comply with legal sulfur limits (EN 590 / Euro 5/6).

Question 6

How is the YEK-S Sulfur Analyzer calibrated and maintained?

Accepted Answer

Daily calibration using NIST or ASTM-traceable SRM with a multi-point curve verification should be performed at the start of each analysis batch. The furnace tube and crucible holder should be cleaned every 50-100 analyses. IR cell optical windows accumulate moisture and debris that reduce sensitivity; clean per manufacturer instructions. Annual service includes IR detector calibration and exhaust system inspection.

YEK-S Sulfur Analyzer

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