What is Green Chemistry?
Green chemistry, also known as environmentally benign chemistry, environmentally friendly chemistry, and clean chemistry, is the design of chemicals and processes that reduce or eliminate the use and production of hazardous substances. Green chemistry involves a wide range of subjects including organic synthesis, catalysis, biochemistry, and analytical chemistry. Green Chemistry advocates the use of chemical technologies and methods to reduce or stop the use and production of raw materials, catalysts, solvents and reagents, products, and by-products that are harmful to human health, community safety, and the ecological environment.
- Green chemistry involves a wide range of subjects including organic synthesis, catalysis, biochemistry, and analytical chemistry. Green Chemistry advocates the use of chemical technologies and methods to reduce or stop raw materials that are harmful to human health, community safety, the ecological environment,
- Green Chemistry originated in the United States. In 1984, the US Environmental Protection Agency (EPA) proposed "waste minimization". The basic idea is to minimize waste by reducing waste generation and recycling waste, initially reflecting the idea of green chemistry. However, waste minimization cannot cover the overall concept of green chemistry. It is just a chemical industry term that does not focus on the green chemical production process.
- In 1989, the US Environmental Protection Agency proposed
- Green chemistry is mainly evaluated in terms of the safety of raw materials, the energy efficiency of the process, the economics of the reactive atoms, and the environmental friendliness of the product.
- Green chemistry uses sustainable development methods to reduce the harmful substances used and produced by chemical products and processes required to maintain human living standards and technological progress. Therefore, related chemical and chemical activities belong to green chemistry Category. In recent years, research on green chemistry has mainly focused on the greening of chemical reactions, raw materials, catalysts, solvents, and products. In the roadmap proposed by the British Crystal Faraday Overseas Chinese Association in 2004, eight technical fields were given, namely green product design, raw materials, reactions, catalysis, solvents, process improvement, separation technology and implementation technology. On this basis, Ji Hongbing and Wu Yuanbin proposed green chemical product design, raw material greening and new raw material platform, new reaction technology, green catalyst preparation and new catalytic technology, green solvent and green solvent, new reactor and process Strengthening and coupling technology, new separation technology, green chemical process system integration, the combination of computational chemistry and green chemistry, and other nine aspects of green chemistry and chemical industry development trends.
- 1. Design of green chemical products
- 2.Greening of raw materials and new raw material platform
- 3. New reaction technology
- 4. Greening of catalyst preparation and new catalysis technology
- 5.Greening of solvents and green solvents
- 6. New reactor and process strengthening and coupling technology
- 7. New separation technology
- 8. Green chemical process system integration
- 9. Combining computational chemistry with green chemistry [3]