BIOMASS SYNGAS PURIFICATION PROCESS UNDER NEGATIVE PRESSURE FOR PRODUCING OIL AND SYSTEM CONFIGURATION THEREOF

摘要

PROVIDED IS A BIOMASS SYNGAS PURIFICATION PROCESS UNDER NEGATIVE PRESSURE FOR PRODUCING OIL AND THE SYSTEM THEREOF IN THE PROCESS, A HIGH TEMPERATURE SYNGAS EXTRACTED FROM A GASIFIER ENTERS A WATER-COOLED CHILLING TOWER VIA A WATER-COOLED FLUE, AND THE GAS IS PARTLY CHILLED TO SOLIDIFY SLAG BY SPRAYING WATER THE WASTE HEAT IS RECOVERED BY A WASTE HEAT BOILER OF A WATER-TUBE TYPE AND A WASTE HEAT BOILER OF A HEAT-TUBE TYPE IN TWO STAGES WITH DOUBLE PRESSURE THE BY-PRODUCTS, MIDDLE PRESSURE STEAM AND LOW PRESSURE STEAM, ARE EJECTED EXTERNALLY AFTER THE HEAVY TAR IS CONDENSED AND RECOVERED BY THE WASTE HEAT BOILER OF THE HEAT-TUBE TYPE, SCRUBBING AND DUST EXTRACTION BY A VENTURI SCRUBBER WITHOUT PADDING, DEEP DUST EXTRACTION BY A WET ELECTROSTATIC PRECIPITATOR, AND PURIFICATION BY REMOVING TAR FOG ARE PERFORMED THEN THE RESULTING PRODUCT IS EXTRACTED BY A WET ELECTROSTATIC PRECIPITATOR, AND PURIFICATION BY REMOVING TAR FOG ARE PERFORMED THEN THE RESULTING PRODUCT IS EXTRACTED BY A GAS FAN AND SENT TO A WET GAS-HOLDER FOR STORAGE OR SUPPLIED FOR USE DOWN-STREAM. THE PURIFICATION AIMS OF COOLING OF THE SYNGAS IN STAGES, GRADIENT RECYCLING USE OF WASTE HEAT, DUST EXTRACTION INSTEPS AND TAR REMOVAL ARE ACHIEVED AND THE TECHNICAL PROBLEMS OF A COMPLEX SYSTEM, LONG FLOW, HIGH ENERGY CONSUMPTION, LOW EFFICIENCY, AND POOR STABILITY AND ECONOMY ARE RESOLVED BY OPTIMIZING THE PROCESS AND CONTROLLING THE APPROPRIATE PROCESS PARAMETERS. [FIG.1]