PetroChina Group issued a press release on May 31, 2013 saying that Dalian Petrochemical's petrol quality upgrade project has officially started production. Dalian Petrochemical has the capacity to produce 4 million tons of national V gasoline per year, and has already provided oil supplies to Beijing and Shanghai. As a result, it became PetroChina's largest national V gasoline production base. At present, apart from Beijing, which has already supplied the country V gasoline, in the second half of this year, some countries in East China and South China will also implement the National V Standard. The national implementation of the national V standard transition period to 2017. As the largest oil refinery company of PetroChina, Dalian Petrochemical began to supply Beijing IV, Shanghai IV and Guangzhou IV gasoline to Beijing, Shanghai and Guangzhou in 2008 respectively. In May 2012, Dalian Petrochemical officially initiated the project of upgrading petrol, including the construction of 2.25 million tons of catalytic gasoline hydrodesulfurization equipment and 1 million tons of light gasoline etherification equipment and supporting systems. The total investment is over 400 million yuan and gasoline sulfur can be used. The content decreased from 200ppm to 20ppm. In June of that year, the petrochemical quality upgrade project of Dalian Petrochemical started. It was completed on April 25 this year. Previously, Dalian Petrochemical produced more than 4 million tons of gasoline components each year, of which the catalytic gasoline with higher sulfur content accounted for more than 50%. After the project is put into production, the sulfur content of Dalian Petrochemical's catalytic gasoline can be reduced to less than 20ppm, and the gasoline produced by the company can all meet the national V standard. Fiberglass Filter Bag,Needle Felt Bag Filter,Non Woven Filter Bag Century New Power International Trade Co., Ltd. , http://www.tjdustcollector.com