Application of green chemical technology in chemical engineering and technology

4 Application of green chemical technology in chemical engineering and technology

4.1 Cleaner production technology

Cleaner production technology is widely used in seawater desalination, waste treatment, metallurgy and other aspects. Cleaner production technology has the advantage of no toxic side effects, so it has less pollution and damage to the environment. Seawater desalination can use clean production technology to extract salt and other substances in seawater, which can not only convert seawater into fresh water for living purposes, but also extract substances in seawater for other applications. Membrane chemistry technology can promote the transformation of renewable resources and realize the effective output of chemical products [10]. Membrane technology is one of the important components of cleaner production technology, which is a technology to separate, purify and concentrate different components of the feed liquid by using materials with selective separation function. It is similar to filtration technology, but can achieve molecular separation. The application of membrane technology, which does not involve phase changes, does not need to add additives, is an efficient clean production technology. It is used in various types of chemical production, not only in seawater desalination has been applied, in non-ferrous metallurgy, energy and power, water supply engineering, sewage recycling, food and medicine also has a wide range of applications, is one of the important driving forces for the development of green chemical technology. Green chemical technology plays an important role in seawater desalination. The reserve of seawater is relatively large, but it cannot be used without special treatment, so it needs to be desalinated. Green chemical technology will be applied in seawater desalination treatment. The scale inhibitor mainly composed of hydroxyethylenediphosphonic acid polyacrylic acid and hydrolyzed polymaleic anhydride is the main raw material for seawater desalination treatment [11]. With the development of green chemical technology, clean production technology also has a higher standard. In order to improve the activity of scale inhibitor, hyperbranched polyester materials can be added to enhance the activity of scale inhibitor and improve the efficiency of seawater desalination treatment [12].

4.2 Biotechnology

Biotechnology is also widely used in chemical engineering and processes. Biotechnology mainly uses microorganisms, enzymes and other substances to promote the improvement of chemical production efficiency and reduce environmental pollution caused by chemical production. Biotechnology can realize the recycling of resources and promote the improvement of chemical production efficiency. Biological enzyme technology is widely used in chemical production, because biological enzymes have good catalytic effect, high efficiency and transferability, and are an important basis for promoting biological chemical production [13]. Green chemical technology pays more attention to the selection of raw materials and catalysts, so it will choose to use enzymes in nature to achieve resource regeneration and recycling, and reduce the damage to the environment. In chemical production, the application of biological enzyme technology is also an important way of green chemical technology, is an important embodiment of the development of green chemical technology. For example, in the process of producing petrochemical products, in order to extract petroleum raw materials, some chemical materials or catalysts will be used, which will cause more serious pollution to the environment, and the use of biological enzymes, that is, enzymes existing in nature for treatment, can reduce the pollution of the natural environment and improve the efficiency of chemical production.

4.3 Production of environmentally friendly chemical products

The sustainable development strategy mentioned that in the new era, we should not only pay attention to the current economy, but also pay attention to the future development of ecological environment. The ecological environment, as the basis of human daily life, will pose a threat to human existence once it is destroyed. The improvement of economic level makes people pay more and more attention to the control of environmental pollution. All future production activities of mankind should be carried out on the basis of environmental protection. Therefore, more and more attention is paid to the research and development of environmentally friendly products in the process of chemical production. There are many types of environmentally friendly products, which are not only common green environmental protection and energy-saving equipment, but also new non-polluting building materials and low-toxicity coatings, which are all products of the development of environmentally friendly products [14]. The application of green chemical technology has promoted the development of environmentally friendly products, can control the total consumption of energy, reduce the waste of resources, and effectively control environmental pollution. Environmentally friendly chemical products are not only reflected in products, but also in fuels, raw materials and other aspects.