An organic waste pyrolysis oil and gas purification recovery process and purification recovery device

Abstract

The invention discloses an organic waste pyrolysis oil and gas purification recovery process and device. The high-temperature pyrolysis oil gas enters the multi-stage cooling and purification separator through the gas phase guide pipe, and the gas phase decompression guide pipe is passed between the cooling and purification separators of each stage. It is connected with the liquid phase guide pipe. After the high-temperature cracked oil gas is cooled and absorbed by the built-in water in the cooling and purifying separators of each stage, the separated non-condensable gas is collected from the upper end of the cooling and purifying separator of the final stage, and the wax oil is collected from the cooling and purifying separator of each stage. The wax oil outlet at the lower end is collected, the fuel oil is collected from the fuel oil outlet of the final cooling and purification separator, and the settled impurities and liquid are discharged from the sewage outlet at the bottom of the final cooling and purification separator. The invention has the following outstanding advantages: using liquid water as the cooling and separating medium, it can quickly separate the wax oil, fuel oil and non-condensable gas contained in the oil and gas; The problem of pressure suppression in the cavity of the stage cooling and purification separator and air resistance in the liquid phase diversion pipeline.

Description

technical field [0001] The invention relates to an organic waste pyrolysis oil and gas purification and recovery device, especially for rapid separation and collection of wax oil, fuel oil and non-condensable gas contained in high-temperature oil and gas under normal pressure. Background technique [0002] The organic solid waste is heated at high temperature in the cracking furnace under normal pressure and anoxic state to break the chain of polyolefin macromolecules in the organic waste, crack them into small molecular substances and precipitate them. After entering the system in a gas state, most of them are converted into a liquid state. , that is, pyrolysis oil, and the gas that cannot be liquefied is non-condensable gas. For a long time, the efficient and safe collection of pyrolysis oil and gas from organic waste has been a major problem that plagues the organic waste treatment industry. People usually use the following methods, one of which: during the pyrolysis pro...

AI Technical Summary

Problems solved by technology

[0003] Aiming at the dilemma of oil collection that has plagued the organic solid waste pyrolysis industry for a long time, the present invention provides an efficient, safe and environmentally friendly organic waste disposal solution that can effectively solve the problem of high pressure in the cooling and purification separator and the air resistance of the liquid phase diversion pipeline. Pyrolysis oil, gas purification recovery device

Images