Jump to content

20250207041. Device Method Preparing Aromatic Hydrocarbons Na (CHINA SHENHUA COAL TO LIQUID AND CHEMICAL .,)

From WikiPatents
Revision as of 18:34, 26 June 2025 by Wikipatents (talk | contribs) (Automated patent report)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)

DEVICE AND METHOD FOR PREPARING AROMATIC HYDROCARBONS FROM NAPHTHA

Abstract: the application discloses a device and method for preparing aromatic hydrocarbons from naphtha, and the device comprises a fluidized bed reactor and a riser reactor; the fluidized bed reactor is used for introducing a naphtha raw material to make contact with a catalyst from the riser reactor and react to generate a btx-containing product gas stream and a spent catalyst, the product gas stream is subjected to gas-solid separation, the product gas stream after separation is sent to a downstream working section, and unconverted naphtha after separation returns to the fluidized bed reactor as a raw material; and a part of low-carbon alkanes after separation return to the riser reactor as raw materials and are further converted into aromatic hydrocarbons and other components. according to the application, by connecting a high-temperature riser reactor and a relatively low-temperature fluidized bed reactor in series, a yield of low-carbon alkane is reduced and a yield of aromatic hydrocarbons is increased; and linear-chain and branched-chain aliphatic hydrocarbons can be efficiently converted into the aromatic hydrocarbons in a highly selective mode, and a content of p-xylene in a xylene mixture is greater than 50 wt %.

Inventor(s): Tao ZHANG, Jiming ZHANG, Zhongmin LIU, Guochun YAN, Mao YE, Liang WEN, Jinling ZHANG, Yanbin ZHANG, Hailong TANG, Huadong LIN, Jinming JIA, Haibo XU, Cheng ZHANG, Zhichao MA, Xiangao WANG, Xiang WANG, Xiangang MA, Gangbin FAN, Jing WANG, Guangyue XIE, Tao LV, Qinbao KANG

CPC Classification: C10G35/14 (CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION (cracking to hydrogen or synthesis gas ; cracking or pyrolysis of hydrocarbon gases to individual hydrocarbons or mixtures thereof of definite or specified constitution ; cracking to cokes ); RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES)

Search for rejections for patent application number 20250207041


Cookies help us deliver our services. By using our services, you agree to our use of cookies.