Carbon Hydrogen Elemental Analyzer for Coal and Organic Materials Determination

Product Overview

This high-precision elemental analysis system is designed for the quantitative determination of carbon and hydrogen mass fractions in coal, coke, solid fuels, and diverse synthetic organic compounds. Operating on the proven principle of high-temperature combustion in a purified oxygen stream, the equipment converts organic carbon and hydrogen into carbon dioxide and water vapor. These combustion products are selectively captured by analytical-grade absorption media within calibrated gravimetric trains, enabling laboratory personnel to determine absolute elemental concentrations with exceptional analytical repeatability and baseline stability in full compliance with GB/T 476 standard test methods.

Engineered specifically for demanding energy, petrochemical, mining, and quality assurance facilities, the analyzer integrates a dual-tube combustion architecture with a three-stage independent furnace assembly. This multi-zone configuration allows simultaneous processing of two distinct samples, effectively doubling laboratory throughput without compromising thermal stability or combustion efficiency. The system is ideally suited for fuel characterization laboratories, thermal power generation utilities, metallurgical coke testing facilities, and specialized research institutes requiring rigorous stoichiometric evaluation of carbonaceous materials.

Constructed with premium industrial-grade alloys, precision-machined mechanical tracks, and high-stability digital temperature controllers, this combustion instrument delivers consistent thermal profiles up to 1100°C. Its robust split-hinge furnace architecture facilitates rapid maintenance, effortless tube inspection, and swift thermal cycling. Whether deployed for routine regulatory compliance testing or sophisticated organic compound assaying, the unit provides continuous, high-duty-cycle reliability under rigorous daily testing protocols.

Key Features

• Dual-Sample Parallel Combustion Architecture: Engineered with dual parallel stainless-steel combustion chambers within a unified structural housing, allowing technicians to analyze two analytical samples simultaneously under identical flow and thermal conditions to maximize laboratory efficiency.
• Three-Stage Independent Thermal Profiling: Features three discrete tube furnace segments (240 mm, 320 mm, and 150 mm) governed by independent digital controllers, establishing dedicated combustion, oxidation, and catalytic conversion thermal zones tailored to complete sample breakdown.
• High-Accuracy Digital Temperature Regulation: Integrated with 0.5-class precision digital instrumentation and responsive nickel-chromium/nickel-silicon thermocouples, ensuring tight temperature regulation with tolerances within ±10°C across all active operational ranges.
• Split-Hinge Radial Opening Mechanism: Designed with a 45-degree radial opening split-furnace body and smooth horizontal track mobility, enabling direct physical access for rapid tube replacement, cleaning, heating element inspection, and accelerated post-test cooling.
• Standard-Compliant Classical Gravimetric Train: Utilizes a sequence of precision absorption U-tubes for targeted moisture capture, nitrogen oxide removal, and dual carbon dioxide absorption, paired with a concentrated sulfuric acid bubble meter for visual flow verification and gas backflow prevention.
• Heavy-Duty Stainless Steel Reaction Tubes: High-grade Φ25 mm × 2.5 mm × 1100 mm reaction tubes offer superior thermal shock resistance, structural integrity under prolonged thermal exposure, and resistance to high-temperature oxidative corrosion.
• Integrated Gas Purification System: Equipped with an internal 500 mL desiccating gas drying tower and an adjustable precision rotameter (0 to 150 mL/min) to ensure pristine, moisture-free oxygen delivery for interference-free oxidation.
• Broad Dynamic Elemental Detection Range: Reliably measures carbon fractions from 1.00% to 99.00% and hydrogen fractions from 0.50% to 50.00%, accommodating everything from low-volatile anthracite and lignite to high-hydrogen hydrocarbon polymers.

Applications

Technical Specifications

System Specifications

Multi-Zone Combustion Furnace Specifications

Auxiliary Subsystem Specifications

Why Choose This Product

• Uncompromising Methodological Accuracy: Designed specifically around classical, unalterable gravimetric principles, the system eliminates the drift, frequent recalibration cycles, and costly reference gases required by carrier-gas thermal conductivity or infrared detection systems.
• Optimized Laboratory Throughput: The integrated dual-tube combustion core enables parallel testing of two analytical batches under unified thermal conditions, cutting analytical lead times by half and accelerating sample clearing in high-volume testing labs.
• Robust Mechanical and Thermal Engineering: Featuring heavy-duty track rails, 45-degree radial shell opening, and industrial-grade stainless steel reaction tubes, this equipment withstands sustained high-temperature thermal cycling without body warpage, cracking, or gas seals degrading.
• Zoned Precision Process Control: Three independent digital controllers deliver tailored thermal platforms (850°C, 800°C, and 600°C) with tightly controlled constant-temperature zones, ensuring 100% complete oxidation of volatile hydrocarbons and refractory carbon residues alike.
• Cost-Effective Operational Longevity: Relying on durable nickel-chromium resistance heating wire, off-the-shelf standard analytical reagents, and standard laboratory U-tubes, the analyzer delivers remarkably low consumable costs and simplified ongoing maintenance over decades of service.

Connect with our technical applications team today to request a comprehensive quotation, explore customized laboratory integration options, or discuss specific sample testing configurations.

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