Akzo Nobel Chemicals International B.v.

Carbonoro B.v.

Nouryon Chemicals International B.v.

Technische Universiteit Eindhoven

Matheus Theodorus De Groot

Antoon Jacob Berend Ten Kate

Dirk Theodorus Andreas Van Asseldonk

Gerrald Bargeman

Melle Rinze Nieuwhof

Lars Magnus Tollin

Johannes Petrus Aldegonda Custers

Johannes Theodorus Faustinus Keurentjes

Anton Alexandru Kiss

Jacobus Theodorus Josef Aaldering

Henricus Johannes Marinus Petrus Van Hal

Arie Grootenboer

Johannes Jozef Pragt

John Van Der Schaaf

Dipnarain Bindraban

Maikel Maria Van Iersel

Shohreh Moshtarikhah

Paola Granados Mendoza

The present invention pertains to a process for the purification of a feed comprising monochloroacetic acid and dichloroacetic acid wherein the feed is subjected to a catalytic hydrodechlorination step by contacting it with a source of hydrogen to convert dichloroacetic acid into monochloroacetic acid in the presence of a solid heterogeneous hydrogenation catalyst comprising a Group VIII noble metal on a carrier under hydrodechlorination conditions, wherein the reaction is carried out in the presence of a catalyst enhancer which comprises a salt of a metal selected from the group of non-noble metals of Group VIII, Group VIB, Group VIIB, and Group IIB. It was found that the presence of a catalyst enhancer leads to reduced deactivation of the catalyst and/or increased activity of the spent catalyst. This allows longer production cycles, less downtime, and lower formation of side products. The catalyst enhancer preferably comprises one or more salts of one or more of nickel, cobalt, or iron, more in particular of iron. The salts preferably comprise one or more of chloride salts and acetate salts.

Process for the purification of monochloroacetic acid

A process capturing COfrom a CO-containing gas stream, contacting a CO-containing gas stream with a CO-absorbing agent in an absorption step in a vessel with maximum temperature Tresulting in absorption of CO. The COabsorbing agent comprising a polymer dissolved in an aqueous medium, the polymer, a thermoresponsive copolymer, comprising amine monomer distributed through the copolymer, subjecting the CO-containing absorbing agent to a desorption step in a vessel with maximum temperature T, releasing CO, wherein Tis below LCST of the thermoresponsive polymer at maximum COloading, and Tis above LCST of the thermoresponsive polymer at minimum COloading. COabsorbing agent comprises amine component dissolved in the aqueous medium. Use of the specific polymer dissolved in an aqueous medium at T, wherein amine monomer, distributed through the copolymer with an amine component, improves net COsorption and high absorption speed, allowing a relatively small absorption reactor.

Process for capturing CO2 from a CO2-containing gas stream using a thermoresponsive copolymer

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Utrecht, Netherlands

Matheus Theodorus De Groot