Quiz on Green Chemistry

2. (2) Sinopec uses non-toxic, less toxic or harmless materials in making fluids for drilling and fracturing in order to reduce its negative impact on the environment. ​ ​ ​ ​ (a)  

• Waste prevention
• Developing real-time analysis for pollution
• Using renewable raw materials:
• Using safer solvents and auxiliaries
• Using safer chemicals for production

(3) ​ Sinopec reduces water resource consumption by making full use of rainwater, operation waste liquid and domestic sewage in the factory area. Besides, it reuses larger quantities of industrial wastewater and domestic wastewater in order to reduce wastewater discharge.​ ​​ ​ (a)  

• Using renewable raw materials
• Designing for energy efficiency
• Using catalysts
• Maximizing atomic economy
• Waste prevention

(4) ​ Sinopec carries out clean production audits to strengthen on-site supervision for controlling the environmental risks (e.g. pollution) in all production and operation processes.​ (a)  

• Developing real-time analysis for pollution
• Waste prevention
• Using renewable raw materials
• Reduce the chance of accident
• Making Degradable products

(5) Using renewable raw materials: more electricity BASF uses is generated from renewable resources rather than from fossil fuels. In 2020, 19 of its sites were partially or fully powered by emission-free electricity. (a)  

• Using renewable raw materials
• Waste prevention
• Designing for energy efficiency
• Using catalysts
• Producing degradable products

• (6) BASF is developing a new production process for hydrogen from natural gas. This process is called methane pyrolysis. It splits natural gas directly into hydrogen and carbon. The carbon obtained can be used in steel or aluminium production. In addition, this process requires relatively little energy. (a)   ​ ​

• Waste prevention
• Producing safer chemical products
• Using renewable raw materials
• Using catalysts

(7) BASF is developing electrically heated steam crackers for the production of basic chemicals. Then less fuel is needed for carrying out cracking. (a)  

• Designing for energy efficiency
• Developing real-time analysis for pollution
• Designing safer chemicals and products
• Making degradable products
• Reducing chance for accidents

(8) With new high-performance catalysts, BASF can produce olefins (or referred to as alkenes) from methane by a new process in which the emissions of carbon dioxide can be significantly reduced. (a)  

• Using catalysts
• Maximizing atom economy
• Using renewable raw materials
• Developing real-time analysis for pollution
• Making Degradable products

(9) more than 50% of 3M’s total electricity use will be generated from renewable energy sources by 2025. Besides, more products and packaging will be made from bio-based plastics (and recycled resources) rather than from petroleum-based plastics. (a)  

• Using renewable raw materials
• Developing real-time analysis for pollution
• Producing safer chemical products
• Using safer solvents and auxiliaries
• Maximizing atom economy

(10) 3M will reduce water use at its manufacturing facilities by 20% by 2025. Besides, 3M will apply regenerative water purification technology at locations with large water consumption by 2024. This technology can raise the quality of used water before the water is discharged to the environment. (a)  

• Waste prevention
• Developing real-time analysis for pollution
• Using catalysts
• Using safer solvents and auxiliaries
• Preventing derivatives

(11) a brand of 3M’s cleansing products includes dishwashing liquid, toilet cleaners and floor cleaners. The brand claims that these products do not contain carcinogenic, toxic or mutagenic substances. Therefore, they are safe for users. (a)  

• Producing safer chemical products
• Waste prevention
• Using safer solvents and auxiliaries
• maximizing atom economy
• Making degradable products