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AssigneeSekab E-Technology AB
InventorTorjorn Van Der Van Der Meulen
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The present invention relates to the use of a comparatively cheap material for the containment of at least a strongly acidic mineral acid solution highly diluted with water, by means of which saccharides are extracted from lignocellulose material by hydrolysis at a temperature of 175-240° C. and a pressure of 6-34 bar (0.6-14 MPa) as well as a time of 1-60 minutes and is characterized in that the material comprises, in addition to iron in an amount greater than any other individual substance and usually at least 50% by weight, at least chromium in an amount of 10.5-30% by weight, nickel in an amount of 2.5-29% by weight, and molybdenum in an amount of 0-7% by weight. The invention also relates to an apparatus.
Apparatus for extraction of saccharides from lignocellulose material by means of hydrolysis under the usage of a strongly acidic mineral acid solution highly diluted with water at a temperature of 175-240° C. and a pressure of 6-34 bar (0.6-3.4 MPa) as well as a time of 1-60 min, wherein the parts of the apparatus that contain at least the mineral acid solution consist of a comparatively inexpensive material, which comprises, in addition to iron in an amount greater than any other individual substance and usually at least 50% by weight, at least chromium in an amount of 10.5-30% by weight, nickel in an amount of 2.5-29% by weight, and molybdenum in an amount of 0-7% by weight.
Use of comparatively cheap material for the containment of at least a strongly acidic mineral acid solution highly diluted with water, by means of which saccharides are extracted from lignocellulose material by hydrolysis at a temperature of 175-24O<0>C and a pressure of 6-34 bar (0.6-3.4 MPa) as well as a time of 1-60 minutes, wherein the material comprises, in addition to iron in an amount greater than any other individual substance and usually at least 50% by weight, at least chromium in an amount of 10.5-30% by weight, nickel in an amount of 2.5-29% by weight, and molybdenum in an amount of 0-7% by weight.
Dependencies are inferred from the claim text.