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Technology
- Name
- Ruihua Bz Alkylation with Pure Ethylene
- Owner
-
/ Changzhou Ruihua Chemical Engineering Technology Co., Ltd. - Brand
- Ruihua Benzene Alkylation with Pure Ethylene
- Process
- Alkylation
- Type
- Alkylation of Aromatic Compounds
- Available
-
CN111574318A describes Ruihua's technology for alkylation reaction of benzene with pure ethylene in liquid phase for the production of ethylbenzene.
The technology involves the steps of:
a. Treating the benzene raw material two impurity absorbers, a light component (tail gas) removal tower and a benzene recovery tower. b. Protection reaction involving an alkylation reactor and a protection reactor. c. Alkylation reaction involving steam generators and two catalyst-bed layers. d. Benzene recovery from the benzene recovery column. e. Ethylbenzene recovery from the ethylbenzene recovery column. f. Polyethylbenzene recovery from the polyethylbenzene recovery column. g. Trans-alkylation reaction in the trans-alkylation reactor.
The attached image depicts the corresponding process design according to:1. Alkylation reactor. 2. Steam generator 3. Protection reactor 4. Benzene recovery column 5. Light components (tail gas) removal tower 6.&7. Impurity absorbers 8. Ethylbenzene recovery column 9. Polyethylbenzene recovery column 10.&12. Booster pumps 11. Trans-alkylation reactor 13. Heat exchanger 14. Condenser
Operational details are provided in the referenced document. In the example 2, it is mentioned that:- ethylbenzene selectivity reaches 90%
- steam consumption is 5.1 t/h for an ethylene flow of 9,160 kg/h
- Standard oil consumption is 10 kg per tonne of ethylbenzene
Source: 和成刚 et al., CN111574318A, Filling Date 4th Jun 2020, Energy-saving reaction process for producing ethylbenzene from pure ethylene, Assigned to Changzhou Ruihua Chemical Eng & Tech Co ltd.
- Link
System Info
- Updated by
-
Kokel, Nicolas - Updated
- 10/24/2024 7:42 PM
- Added by
-
Kokel, Nicolas
- Added
- 10/22/2024 2:25 PM
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