Study and practice of alcohol/aldehyde flexible production technology in butanol facility

Journals

Online: 17 October 2022; Volume 1, Issue 1, No.2 PDF DOWNLOAD

Title：
Study and practice of alcohol/aldehyde flexible production technology in butanol facility
Author：
Liang Chang, Zhang Yu
Author Affiliation：
Yankuang Lunan Chemicals Co., Ltd., Tengzhou, China

Abstract

Butanol facility of Yankuang Lunan Chemicals Co., Ltd. adopts DAVY/D0W low pressure oxo synthesis process, with design capacity of n-butanol at 135kt/a and iso-butanol at 15kt/a, and the butanol facility only sells n-butanol/iso-butanol products to foreign countries. However according to market survey, the market of the intermediate products n-butyl aldehyde/iso-butyl aldehyde produced by the butanol facility fails to be saturated, and the price of n-butanol/iso-butanol and n-butyl aldehyde/iso-butyl aldehyde fluctuates with the market situation, and the profit-creating capacity of various products differs greatly, therefore, it is of great significance to make technological reformation of the butanol facility to realize alcohol/aldehyde flexible production. Upon analysis and study, by using efficient energy-saving distillation technology, namely adding a butyl aldehyde isomer tower to the system, the butanol facility can realize alcohol/aldehyde flexible production by organizing the production mode flexibly. After reformation of the butanol facility, n-butyl aldehyde/iso-butyl aldehyde can be separated effectively, and the quality of the output products could reach relevant international quality standards and requirements; the butanol facility can organize the production mode flexibly,

and put the product portfolio with high profit-creating capability into market as much as possible. Under the current production mode, many indicators of product consumption per ton of products in the butanol facility decrease effectively,

and the butanol facility can create an addition annual benefit of about RMB 206.1718 million compared with that before reformation.

References

[1] Zhang Gui-hua, QI Yi, Zhang Ai-min, et al. Market Analysis and Forecast of Iso-butyl Aldehyde [J]. Chemical Industry, 2016, 34(6):38-41.

[2] ZHU Xia-lin. Development and Application of Novel Packing and Tower Inner Parts in Distillation [J]. Modern Chemical Industry, 2008, 28(S1):57-58.

[3] HUANG Zhi-fu, ZHANG Shu-fen. Research Progress and Industrial Application Research of Distillation Technology [J]. Petrochemical Industry Technology, 2021, 28(3):16-17.