
Mc Clelland Engineers Pvt. Ltd., established in 1985 and headquartered in Navi Mumbai, is India’s premier manufacturer of high‑performance incineration systems. Managing over 300 installations worldwide—including liquid, gaseous, and solid waste incinerators for pharma, petrochemical, bio‑medical, municipal, and hazardous waste applications—the company is trusted for its engineering excellence.
1. Gaseous (Exhaust Gas) Incinerators
Exhaust gas incinerators combust harmful or combustible gases to temperatures above 1100 °C, neutralizing organics by flame combustion. Variants include:
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Direct Combustion: ideal for high‑calorific gases
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Catalytic Combustion: oxidation via catalysts into CO₂ and H₂O
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Regenerative Combustion: heat recovery for improved energy efficiency
Prior to design, Mc Clelland ensures detailed analysis of exhaust composition, calorific value, and optimal incineration method. Advanced tail‑gas controls ensure compliance with emission norms.
2. Liquid (Waste Liquid) Incinerators
Designed to handle pumpable wastes such as sludges, slurries, and chemical effluents, these incinerators rely on atomization nozzles to ensure complete combustion. Selection of atomizers, furnace shape, lining, and temperature profiles are customized to prevent salt fouling and ensure post‑combustion dust/acid gas treatment. Mc Clelland’s systems offer long service life, high efficiency, and low maintenance costs.
3. Pyrolysis (Medical / Hazardous) Incinerators
These incinerators operate under oxygen‑limited conditions. Waste undergoes staged thermal breakdown into pyrolysis gas and char, which are further combusted in a secondary chamber. The controlled layering ensures maximal destruction of hazardous medical waste while capturing released heat and emissions effectively.
4. Rotary Kiln Incinerators
Consisting of an inclined, refractory‑lined rotating cylinder, these incinerators efficiently handle mixed-phase waste—including solids, liquids, and sludge. Fuel sources include natural gas, oil, or pulverized coal. Mc Clelland’s rotary kiln systems are tailored with secondary combustion chambers, auxiliary burners, and liquid injection nozzles to ensure full destruction and emission control.
Notable operational features include:
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Reverse and co‑current flows for optimized combustion and turbulence
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Temperatures above 1200 °C to destroy toxic organics
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Design based on the 3T principle (time, temperature, turbulence) with destruction efficiencies > 99.99%
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Controlled negative‑pressure combustion to prevent gas leakage
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Durable refractory linings ensuring outer‑wall temperatures stay below 70 °C
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Frequency‑controlled motor rotation for adjustable residence times and stable operation
Why Mc Clelland Engineers Stands Out
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Over 40+ Years of Expertise: A legacy of delivering custom incinerators across India and abroad, backed by partnerships in Switzerland and Japan.
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Wide-Ranging Applications: Off-the-shelf and tailor-made systems for hazardous waste, municipal solid waste, medical effluents, shipboard, chlorine waste, precious‑metal recovery, and more.
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Innovative Emission Control: Integrated low‑NOx combustion, flue‑gas recirculation, SNCR, acid gas scrubbers, and waste heat recovery options for sustainable operation.
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Globally Recognized: Accredited with congressional recognition by the U.S. and the Sir C.V. Raman Award (Los Angeles County), 300+ global installations, and certification under ISO 9001 standards.
