Recently, because of the enforcement of environmental protection, the industries pay much attention to the development of green chemistry, sustainable chemistry and clean processes, The role of chemists and engineers is to minimize the risk of production and reduce the impact on the environment to a sustainable level, including the development of new catalyst, supercritical fluid technology, new reactor technology, utilization of clean raw material and renewable resources, etc. The development of catalysts and catalytic processes will play an important and key role in green chemistry.