博文

目前显示的是 十月, 2025的博文

An Overview of Mono-Ethylene Glycol Synthesis via CO Coupling Reaction

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  Mono-ethylene glycol (MEG)   is an important industrial chemical, primarily used as a precursor for polyester fibers, antifreeze, and as a component in other chemical applications. Given its wide usage, the efficient and environmentally friendly production of MEG is a topic of significant interest. Among the various methods for MEG production, the synthesis from syngas (a mixture of carbon monoxide and hydrogen) via CO coupling reactions has garnered attention for its potential to provide a green and efficient route.   The Syngas Route to MEG Production The synthesis of  mono-ethylene glycol  via syngas proceeds in two key steps. These include: 1. Carbonylation of Alkyl Nitrile – This is a self-closing, green step where alkyl nitriles undergo carbonylation to produce dialkyl oxalate. 2. Hydrogenation of Dialkyl Oxalate – In this step, the dialkyl oxalate is hydrogenated to produce mono-ethylene glycol.   This method stands out for its environmental friend...

Can CO2 Be Used to Make Plastics?

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 In today's world, sustainability is at the forefront of innovation, and one of the biggest challenges we face is how to reduce carbon dioxide (CO2) emissions. While CO2 is primarily known as a greenhouse gas contributing to global warming, recent advancements show that it can also serve a more constructive purpose—making plastics. Yes, you read that right! CO2, which was once just seen as a pollutant, is now being explored as a raw material for manufacturing sustainable plastics. But how is this possible, and what does it mean for the future of the plastics industry? Let’s dive into the fascinating world of CO2-based plastics.   What Are CO2-Based Plastics?   CO2-based plastics  refer to materials that use carbon dioxide as one of the core ingredients in the polymer-making process. These types of plastics are often referred to as “green plastics” due to their lower environmental impact compared to traditional petroleum-based plastics.   How Is CO2 Used in Plast...