Core Viewpoint - A new composite catalyst developed by a research team at Anhui University successfully synthesizes para-xylene directly from carbon dioxide and hydrogen, setting a world record for single-pass space-time yield [1][2] Group 1: Catalyst Development - The new composite catalyst consists of metal oxides and molecular sieves, designed to enhance the selectivity for para-xylene through a "capsule" design and surface passivation to prevent side reactions [1] - The catalyst achieves a single-pass space-time yield of 1000.8 grams of para-xylene using 1000 grams of catalyst over one day, significantly surpassing existing performance levels reported in scientific literature [2] Group 2: Industry Impact - Para-xylene is a critical raw material for producing polyester fibers, coatings, and dyes, with China's annual demand exceeding 30 million tons [1] - Traditional methods for synthesizing para-xylene are energy-intensive and environmentally harmful, consuming approximately 4 tons of oil and emitting about 3 tons of carbon dioxide for every ton produced [1] - The new method utilizing renewable energy for hydrogen production and direct synthesis from carbon dioxide offers a sustainable alternative to conventional high-energy, high-emission processes [1]