Furfural vapor-residue treatment system

Abstract

The invention discloses a furfural vapor-residue treatment system, and relates to the technical field of auxiliary equipment for furfural production. The system comprises a vapor-residue separator, awaste gas cooling and dehumidifying device, a cooling device and a combustion device, wherein an inlet of the vapor-residue separator is connected with a residue discharge port of a hydrolysis kettle,a gas outlet of the vapor-residue separator is connected with the inlet of the waste gas cooling and dehumidifying device, the cooling device is connected with the waste gas cooling and dehumidifyingdevice, a feed inlet of the combustion device is connected with the residue discharge port of the vapor-residue separator, and an air intake of the combustion device is connected with an exhaust portof the waste gas cooling and dehumidifying device. The vapor-residue separation is carried out on furfural residues discharged from the hydrolysis kettle by using the vapor-residue separator, and thecooling device and the waste gas cooling and dehumidifying device are used for cooling and drying the separated waste gas; the separated slag enters a boiler for combustion, and the cooled and dehumidified waste gas enters a boiler blower to promote the combustion of the furfural slag; and the waste slag and the waste gas of the furfural can be thoroughly treated through the combustion, and the environment pollution is reduced.

Description

technical field [0001] The invention relates to the technical field of furfural production auxiliary equipment, in particular to a furfural slag treatment system. Background technique [0002] Furfural is produced by using agricultural production waste such as corncobs, rice husks, etc., to react with dilute acid, hydrolyze, dehydrate and distill under high temperature and pressure. Furfural slag is the waste after furfural production. For every ton of furfural produced, about 18 tons of slag (containing about 56% moisture) will be produced. The dehydrated furfural slag has a high acid content, so it cannot be directly returned to the field, nor can it be used as feed. At present, my country's furfural production accounts for about 70% of the world's production. In the furfural production process, most enterprises discharge furfural slag and acid-doped waste gas into the slag shed, and the waste gas is directly discharged into the atmosphere to cause air pollution. Meet the ...

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Problems solved by technology

At present, my country's furfural production accounts for about 70% of the world's production. In the furfural production process, most enterprises discharge furfural slag and acid-doped waste gas into the slag shed, and the waste gas is directly discharged into the atmosphere to cause air pollution. Meet the requirements of clean production; if the furfural slag is not recycled, it will also cause waste of production resources and increase the cost

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