Abstract
Life cycle assessment can be used to evaluate the environmental issues involved in the entire product production process (including raw material acquisition, production, transportation, use/maintenance and final disposal). It is an important support tool for screening and developing an efficient, low-cost and environmentally friendly product. In this study, based on the life cycle method, an environmental impact assessment of the resource consumption and pollutant emission data was carried out for the mesoporous K-Ag/Co<sub>3</sub>O<sub>4</sub> catalyst life cycle. The results show that the proportion of resource consumption to produce 1 kg of mesoporous K-Ag/Co<sub>3</sub>O<sub>4</sub> is 0.132. Environmental impact types mainly contain fossil depletion, climate change, human health and particulate matter formation; The substances produced by mesoporous K-Ag/Co<sub>3</sub>O<sub>4</sub> catalyst life cycle have the greatest impact on human health, including carcinogens, resp. inorganics and human toxicity. These substances are mainly gas pollutants, CO<sub>2</sub> emission is the largest, followed by SO<sub>2</sub> and CH<sub>4</sub>. Whether it is health impact, environmental impact or resource depletion, electricity consumption is the main factor. Thus, it is necessary to improve the production process and use low-power equipment to reduce the environmental impact of the entire life cycle. The use of mesoporous K-Ag/Co<sub>3</sub>O<sub>4</sub> catalyst has purified a large amount of formaldehyde and has a good environmental effect.
Highlights
With the development of modern science and technology, technology evaluation has become an indispensable method of technology selection and is an important part of the management of science and technology
principal component analysis (PCA) has the function of decreasing the dimensionality and removing the correlation, but the data that it contains are not comprehensive, and it is likely that data will be lost during the analysis [3]
The results showed that consumer behavior markedly affects the environmental impacts during the use phase
Summary
With the development of modern science and technology, technology evaluation has become an indispensable method of technology selection and is an important part of the management of science and technology. Catalytic combustion has many advantages, such as a wide range of applications, simple equipment, and no secondary pollution It is the main choice for the industrial purification of VOCs. The core of the technology is the catalyst products. Based on LCA, researchers have carried out environmental impact analyses and established LCA databases for approximately 16 industries, such as metal [12], buildings [13], electronic devices [13] and textiles [15]. These data and analyses can provide a scientific basis and technical support for formulating industry environmental management indicators and cleaner production management. We provide a technical reference for improving the clean production management of the VOCs purification industry
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