Method for recycling sulfur dioxide and butadiene
A sulfur dioxide and desulfurization technology, applied in chemical instruments and methods, separation methods, inorganic chemistry, etc., can solve problems such as polluting the environment and wasting resources, and achieve the effects of environmental protection and resource conservation
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[0007] First, replace the sulfolene sulfone desulfurization stirred tank with nitrogen and fill it with nitrogen. The nitrogen pressure is 0.05 MPa, and the stirring is started. The sulfolene sulfone, excess sulfur dioxide and a small amount of butadiene liquid produced in the production are subjected to pressure greater than 1.0 MPa. The pipeline is discharged into the sulfolene sulfone desulfurization stirred tank. When the internal pressure of the stirred tank is greater than 0.20MPa, it should be slowly discharged. The precipitated sulfur dioxide and butadiene gas mixture enters the polymerization inhibitor tank through the pipeline. The sulfur dioxide, butadiene and The nitrogen gas mixture is fully contacted with the inhibitor hydroquinone (using sulfolane as solvent) in the polymerization inhibitor tank through the jet plate in the polymerization inhibitor tank, and the mixed gas comes out of the polymerization inhibitor tank through the pipeline and enters the compressor ...
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