Zhang Lei is currently the Deputy Director of Product Development No.1 of Guangxi Petrochemical Company of PetroChina Company Limited.He is mainly responsible for the production and operation management of eight units including the catalytic cracking unit with a capacity of 3.5 million tons/year.He was fully involved in the construction and commencement of the heavy oil catalytic cracking unit with the capacity of 3.5 million tons/year,which adopted the feedstock with the worst properties,was the largest in scale in China,and introduced all foreign advanced technologies.Over the past ten years,he has devoted himself to the production line and grown from an operator to an expert in the industry and an industry benchmark responsible for catalytic units.