Multi-stage raw gas washing system

• Main Authors: FRANK HANNEMANN, MANFRED SCHINGNITZ
• Format: Patent
• Language: English
• Published: 06.05.2015
• Subjects: CARBURETTING AIR OR OTHER GASES; CHEMISTRY; FUELS; LUBRICANTS; METALLURGY; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROMSOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLEGASES CONTAINING CARBON MONOXIDE; TECHNICAL GASES CONTAINING CARBON MONOXIDE

The utility model relates to a multi-stage raw gas washing system. In order to remove dust in gas stream gasified raw gas at a pressure up to 10MPa and a temperature exceeding the melting point of fuel ash, a multi-stage gas washing system is adopted. A first washing stage comprises an improved quenching system and a postpositional cleaning cylinder working as a blowing column; a second washing stage comprises one or more venturi cleaners which are connected in series; and a third washing stage comprises a plurality of high-pressure spraying mechanisms for washing water, a partial condenser and a separation cylinder, wherein the partial condenser is used for cooling the raw gas at a amplitude of 1 DEG C-15 DEG C and is provided with a condensed water formation mechanism and the separation cylinder is provided with a cleaning bottom plate and a defogger coated with plastic.