Production of Lactic Acid/Lactates from Biomass and Their Catalytic Transformations to Commodities
, E-ISSN: 1520-6890
Simakova Irina L.
Murzin Dmitry Yu.
Laboratory of Industrial Chemistry and Reaction Engineering, Åbo Akademi University, Biskopsgatan 8, 20500 Turku, Finland
Boreskov Institute of Catalysis, Pr. Lavrentieva 5, Novosibirsk 630090, Russia
The aim of this review is to describe the research in the production of lactic acid from biomass and its transformation to commodity chemicals mainly since 2002. The following reactions will be discussed in detail: catalytic production of lactic acid or alkyl lactates using homogeneous and heterogeneous catalysts (section 2), catalytic transformation of lactic acid or alkyl lactates via hydrogenation to 1,2-propanediol (propylene glycol), dehydrogenation to pyruvic acid, dehydration to acrylic acid, decarbonylation and decarboxylation to acetaldehyde, condensation of lactic acid to 2,3-pentanedione, and esterification (section 3), excluding, however, polymerization. The main emphasis is on
elucidation of catalyst properties, the stability of catalysts and their reuse, and reaction conditions and mechanisms in the production of both lactic acid and its derivatives in the presence of homogeneous and heterogeneous catalysts. Furthermore, kinetic modeling and reactor technologies are also discussed in catalytic hydrogenation of lactic acid as well as in its esterification.