Abstract: A continuous process for obtaining acrolein by catalytic dehydration of glycerol or glycerin, in the presence of an acid catalyst, wherein said process comprises the concomitant regeneration of said catalyst and is carried out in a fluidized bed reactor, said reactor comprising two zones, a first zone, or lower zone, termed catalyst regeneration zone, in which a fluidization gas comprising oxygen is introduced, and a second zone, or upper zone, termed reaction zone, in which the glycerol or glycerin is introduced and converted into acrolein.

Abstract: A continuous process for obtaining acrolein by catalytic dehydration of glycerol or glycerin, in the presence of an acid catalyst, wherein said process comprises the concomitant regeneration of said catalyst and is carried out in a fluidized bed reactor, said reactor comprising two zones, a first zone, or lower zone, termed catalyst regeneration zone, in which a fluidization gas comprising oxygen is introduced, and a second zone, or upper zone, termed reaction zone, in which the glycerol or glycerin is introduced and converted into acrolein.

Abstract: Method characterised by the following steps: a first fraction of animal's blood, for example pig's blood or cow's blood or alternatively derivatives thereof such as cruor, is subjected to a process of controlled enzyme hydrolysis to obtain a first hydrolysate containing haem iron complexed with large-sized peptides; the first hydrolysate is enriched by ultra-filtration to obtain a hydrolysate solution enriched with haem iron-peptide complexes; in parallel, a second fraction of animal's blood or derivatives thereof such as cruor, is subjected to a process of advanced enzyme hydrolysis to obtain an extrinsic haem solution highly complexed with small peptides; the hydrolysate solution enriched with haem iron-peptide complexes is mixed with the extrinsic haem solution to enable the extrinsic haem to fix on the large-sized peptides of the hydrolysate solution and to obtain a haemic peptide fraction with a high content of iron soluble at an acid pH.