Which design institutes are capable of carrying out cyclohexane design?

Nanhua Institute is currently designing four sets at the same time! Who’s up there?

I work in the oil refining industry. A new oil refining project has an excess of hydrogen, and it is planned to install a cyclohexane unit that will consume benzene and steam on a scale of 300,000 tons per year. Could you provide the contact information for Nanhua Institute on the upper floor?

I work at Ningbo Engineering Co., Ltd., which is part of the Second Chemical Industry Design Institute. Our company is capable of carrying out **, and we have already completed two projects of this kind

The main production technologies for cyclohexane currently include: the phenol method, the partial benzene hydrogenation method, the benzene hydrogenation method (which includes liquid-phase hydrogenation and gas-phase hydrogenation), and the catalyst-free oxidation method； The partial hydrogenation method (a patented technology of Japanese company Asahi Kasei) offers advantages such as low operating costs, reduced environmental pressure, and high conversion rates. However, dimethylacetamide, which must be added during the separation stage, introduces trace impurities, which prevents the resulting product from meeting the requirements for producing caprolactam (the caprolactam and final products may exhibit issues such as short fibers). This is why Asahi Kasei’s patented technology is currently used only to produce the intermediate product, without further processing into caprolactam or other derived products. The complete hydrogenation of benzene primarily focuses on the purity of raw materials such as benzene, hydrogen, and oxygen; it makes it easy to control the specifications of cyclohexane, thereby meeting the requirements for the production of caprolactam. Experts, is what was said above correct? The cyclohexane in our project will be used to produce caprolactam.

Please leave your contact information for further communication, thank you! :handshake

Does the second 200,000 tons per year caprolactam production line planned by Nanjing DSM Eastern Chemical Co., Ltd. include a cyclohexane unit? If so, what is the capacity of that cyclohexane unit per line? Thank you!

Not included: Nanjing DSM Eastern Chemical Co., Ltd. is not allowed to purchase it; only Nanhua Company can buy it! Nanhua Company is installing a 2x100,000-ton **plant!

The original poster still plans to install more **units**; I am not very optimistic about the future prospects of **. Alone, the **units that I have been responsible for building total three units with a capacity of around 260,000 tons per year, plus four alcohol tower units with a capacity of 280,000 tons per year each； There are also several new projects related to caprolactam production; the traditional method involves the air oxidation of cyclohexane – its advantage is reliable quality, but its disadvantages include a high level of risk associated with the equipment, significant environmental pollution, and high production costs! The new process is a partial hydrogenation method for benzene – its advantages include low production costs, high molecular utilization efficiency, low pollution levels, and intrinsic safety. The current drawback is that it results in less stable quality of caprolactam; therefore, the person considering this option should think carefully, conduct thorough research, and avoid relying solely on individual opinions

The design institutes currently involved in this design include: the Cyclohexane Air Oxidation method – Hunan Baili Institute, Nanhua Institute, Zhejiang Engineering Design Co., Ltd., Tianchen Institute, and Hua Er Institute； New process: I won’t write about it; we can talk about it if there’s a chance

Thank you! Since cyclohexane is to be used to produce caprolactam, only the oxidation method can be employed. :handshake