Lyondellbasell Acetyls Llc patents

Acetic acid process

The present disclosure provides for a method for measuring the concentration of one or more components in a reactor or a separation unit of an acetic acid process by Raman spectroscopic analyses. In some embodiments, the conditions in the reactor or in any subsequent step of the acetic acid production... Lyondellbasell Acetyls Llc

Removal of aldehydes in acetic acid production processes

The present technology discloses processes for producing carboxylic acid. In some embodiments, the processes include contacting methanol and carbon monoxide in the presence of a liquid reaction medium under carbonylation conditions sufficient to form a carbonylation product, including acetic acid and acetaldehyde. The liquid reaction medium may include a carbonylation... Lyondellbasell Acetyls Llc

Selective removal of impurities in acetic acid production processes

Processes for producing carboxylic acid are included herein. The processes include contacting methanol and carbon monoxide in the presence of a liquid reaction medium under carbonylation conditions sufficient to form a carbonylation product including acetic acid and one or more components selected from acetaldehyde, formic acid and combinations thereof, wherein... Lyondellbasell Acetyls Llc

Additives for carboxylic acid production processes

Processes for producing carboxylic acid are included herein. The processes include contacting an alcohol and carbon monoxide in the presence of a liquid reaction medium under carbonylation conditions sufficient to form a carbonylation product including the carboxylic acid and recovering the carboxylic acid from the carbonylation product. The liquid reaction... Lyondellbasell Acetyls Llc

Catalyst stability and corrosion prevention in acetic acid production process

Processes for producing acetic acid herein generally include contacting methanol and carbon monoxide in the presence of a reaction medium under carbonylation conditions sufficient to form acetic acid, the reaction medium including a carbonylation catalyst selected from rhodium catalysts, iridium catalysts and palladium catalysts; from 1 wt. % to 14... Lyondellbasell Acetyls Llc