18183299. INTEGRATED PROCESSES AND SYSTEMS FOR PRODUCING PARA-XYLENES simplified abstract (SAUDI ARABIAN OIL COMPANY)
Contents
INTEGRATED PROCESSES AND SYSTEMS FOR PRODUCING PARA-XYLENES
Organization Name
Inventor(s)
Mohammed I. Alamer of Dhahran (SA)
Ali S. Abdali of Al-Khobar (SA)
Mosab T. Kheyami of Dhahran (SA)
INTEGRATED PROCESSES AND SYSTEMS FOR PRODUCING PARA-XYLENES - A simplified explanation of the abstract
This abstract first appeared for US patent application 18183299 titled 'INTEGRATED PROCESSES AND SYSTEMS FOR PRODUCING PARA-XYLENES
The integrated process described in the patent application involves catalytically reforming a naphtha feed stream to produce para-xylenes through a series of steps including solvent extraction, separation, isomerization, and upgrading.
- Catalytically reforming a naphtha feed stream to form a reformate stream
- Separating the reformate stream into a C-C hydrocarbon stream and a C7+ hydrocarbon stream
- Exposing the C-C hydrocarbon stream to a first solvent in a solvent extraction unit to separate non-aromatic hydrocarbons and C7+ aromatics
- Separating the C7+ aromatics into at least a toluene feed stream
- Separating the C7+ hydrocarbon stream into a C6- stream and a xylene stream
- Separating the xylene stream in a p-xylene separation unit to obtain para-xylene and xylene isomers
- Isomerizing the xylene isomer stream to produce a para-xylene rich stream
- Upgrading the toluene feed stream and the C6- stream in a hybrid dealkylation/transalkylation unit with a hydrogen stream and a hybrid transalkylation/dealkylation catalyst to produce a product stream including para-xylenes
Potential Applications: - Production of high-quality para-xylenes for various industrial applications such as polyester production - Petrochemical industry for the manufacturing of plastics, fibers, and films
Problems Solved: - Efficient production of para-xylenes from naphtha feed streams - Enhanced separation and purification processes for xylene isomers
Benefits: - Increased yield of para-xylene - Improved process efficiency and cost-effectiveness - Reduced environmental impact through optimized production methods
Commercial Applications: - Petrochemical industry for the production of plastics, fibers, and films - Chemical manufacturing companies for the synthesis of various products requiring para-xylenes
Questions about the Integrated Process for Producing Para-Xylenes: 1. How does the solvent extraction unit contribute to the separation of non-aromatic hydrocarbons and C7+ aromatics? 2. What are the key advantages of isomerizing the xylene isomer stream to produce a para-xylene rich stream?
Original Abstract Submitted
An integrated process for producing para-xylenes may include catalytically reforming a naphtha feed stream to form a reformate stream; separating the reformate stream into a C-Chydrocarbon stream and a C hydrocarbon stream; exposing the C-Chydrocarbon stream to a first solvent in a solvent extraction unit to form a non-aromatic hydrocarbon stream and a C-Caromatics stream; separating the C-Caromatics stream into at least a toluene feed stream; separating the C hydrocarbon stream into a C hydrocarbon stream and a xylene stream; separating the xylene stream in a p-xylene separation unit to form the para-xylene stream and a xylene isomer stream; isomerizing the xylene isomer stream to produce a para-xylene rich stream; and upgrading the toluene feed stream and the C hydrocarbon stream in a hybrid dealkylation/transalkylation unit with a hydrogen stream and a hybrid transalkylation/dealkylation catalyst to produce a product stream including para-xylenes.
