Inventor

LI DADONG

CN23 patents

⚠️ This page may combine multiple inventors who share the name “LI DADONG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

LI DADONG

CHINA PETROLEUM & CHEM CORP

Process for hydrotreating heavy raw oils

Process for treating gasoline

Process for producing light olefins and aromatics

Process for converting inferior feedstock oil

Process and system for hydrotreating deoiled asphalt

Process and system for processing aromatics-rich fraction oil

Hydrofining catalyst, its preparation and application thereof

PANGANG GROUP PANZHIHUA IRON & STEEL RES INSTITUTE CO LTD

Hypereutectoid steel rail and preparation method thereof

Method for optimizing microstructure of rail welded joint

Heat treatment method for increasing the depth of hardening layer in a steel rail and steel rail obtained with the method

CHINA PETROCHEMICAL CORP

Catalyst for hydrorefining fraction oils, its carrier and preparation

Distillate hydrofining catalyst and a process for the preparation of the same

CHINA PETROLEUM & CHEMICAL

Catalyst for selective hydrogenation of olefins and its preparation as well as use

Process for reducing sulfur and olefin contents in gasoline

MAO YICHAO

Hydrocracking catalyst, the preparation process and use of the same

Hydrocracking catalyst, a process for producing the same, and the use of the same

GAO YONGCAN

Integrated process for hydrogenation and catalytic cracking of hydrocarbon oil

Combined process of hydrotreating and catalytic cracking of hydrocarbon oils

NIU CHUANFENG

Combined process for hydrotreating and catalytic cracking of residue

LONG JUN

Process for producing light olefins and aromatics

LONG XIANGYUN

Hydrogenation catalyst and use thereof

RES INST OF PETROLEUM PROC

Distillate hydrocracking catalyst and process for the preparation of the same

PANGANG GROUP RES INSTITUTE CO LTD

Mobile flash butt welding method for 136RE+SS heat-treated rail