Introduction to the green petrochemical process development process
2022-01-10
(I) Innovative atomic economic reaction
Atomic economic reaction is developed by the concept of atomic economy, the ideal state of petrochemical production reaction in all the raw material atoms are involved in the reaction, and all transformed into the target product, no toxic and hazardous wastes, raw material utilization rate of 100%, that is, to achieve the goal of zero emission of process waste. With the continuous development of China's petrochemical industry, the rapid expansion of petrochemical production scale, millions of tons, 10 million tons of petrochemical projects have gradually become the mainstream, the application of atomic economic reaction can effectively improve product yield, control and reduce the amount of process waste generation, for the promotion of petrochemicals and the environment and the harmonious development of the petrochemical industry, has important practical significance. At present, part of the production of organic raw materials synthesis reaction, has been completed by the traditional secondary reaction to the modern atomic economic reaction of the transformation. For example, the modern epoxy ethylene production process, the use of direct oxidation of ethylene and epoxy ethylene atom economic reaction process production method, instead of the traditional chlorohydrin method of secondary preparation process. Atomic economic reaction to the economy, high efficiency green environmental protection and other characteristics, has become an important topic of green petrochemical process in recent years, with broad prospects for development.
(B) the research and development of non-toxic raw materials utilization
At this stage, in part of the petrochemical production process, in order to obtain some specific chemical functional groups, the operator still continues the traditional production process, using some with toxicity or even highly toxic phosgene as a raw material for production. However, from the perspective of the harmonious development of petrochemical industry and the environment as well as the health of the operators, such toxic substances do not have the corresponding applicability, therefore, non-toxic and harmless raw materials should be actively explored to replace such toxic substances, in order to improve the safety of production and environmental protection.
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