Complete set of technology of methanol-formaldehyde production DMMn passed the appraisal

Sinochem News.

The appraisal expert group believes that the technical results of the synthesis of DMMn by using trioxane have advanced and reliable technical indicators and strong applicability.

Academician Shu Xingtian of the Chinese Academy of Engineering pointed out that the project has developed a new process for coupling of anhydrous paraformaldehyde, invented the key technology and process for coupling strengthening of internals of the reactive extractive distillation column, and a new type of dual-functional modified resin catalyst, forming independent knowledge.

The project also overcomes the problems of low reaction efficiency in the existing production process, uneven gas-liquid distribution in the tower, difficult control of the reaction process, inaccurate simulation results, high process energy consumption, and low product economy.

Project leader Mao Jinchi, chief engineer of Kairui Environmental Technology Co.

It is understood that DMMn is an internationally recognized new type of oxygen-containing environmentally friendly diesel blending agent for reducing flue gas emissions and improving diesel quality; its cetane number is 76, oxygen content is 47%-50%, sulfur and aromatics, and it is used in diesel The medium blending of 10%-20% can significantly reduce the cold filter filter point of diesel, improve the combustion quality of diesel in the engine, increase thermal efficiency, and greatly reduce engine exhaust smoke