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Hongchang Duan

PL Petrochina Company Limited: 9 patents #11 of 890Top 2%
Overall (All Time): #560,817 of 4,157,543Top 15%
9
Patents All Time

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDate
11084024 Method for modifying molecular sieve and a catalytic cracking catalyst containing the molecular sieve Shuhong Sun, Xiaoliang Huang, Haitao Zhang, Gengzhen Cao, Yunfeng Zheng +8 more 2021-08-10
9968918 Catalytic cracking catalyst for high-efficiency conversion of heavy oil and preparation method thereof Xionghou Gao, Haitao Zhang, Di Li, Zhengguo Tan, Xueli Li +6 more 2018-05-15
9968915 Phosphorus-containing ultrastable Y-type rare earth molecular sieve and preparation method therefor Xionghou Gao, Haitao Zhang, Di Li, Xueli Li, Zhengguo Tan +7 more 2018-05-15
9895686 Double-component modified molecular sieve with improved hydrothermal stability and production method thereof Xionghou Gao, Dong Ji, Haitao Zhang, Di Li, Zhengguo Tan +5 more 2018-02-20
9889439 High light received heavy oil catalytic cracking catalyst and preparation method therefor Xionghou Gao, Haitao Zhang, Di Li, Xueli Li, Zhengguo Tan +5 more 2018-02-13
9844772 Heavy oil catalytic cracking catalyst and preparation method therefor Xionghou Gao, Haitao Zhang, Zhengguo Tan, Di Li, Dong Ji +1 more 2017-12-19
9840422 Magnesium modified ultra-stable rare earth Y-type molecular sieve and preparation method therefor Xionghou Gao, Haitao Zhang, Chaowei Liu, Di Li, Xueli Li +5 more 2017-12-12
9789475 Ultra-stable rare earth Y-type molecular sieve and preparation method therefor Xionghou Gao, Haitao Zhang, Zhengguo Tan, Di Li, Dong Ji +1 more 2017-10-17
8545803 Modified molecular sieve characterized by improved sodium-contamination-resisting activity and preparation method thereof Xionghou Gao, Dong Ji, Haitao Zhang, Di Li, Zhengguo Tan +5 more 2013-10-01