Process and apparatus for purifying material of biological origin
AssigneeUpm-Kymmene Corporation
InventorsJaakko Nousiainen, Heli Laumola, Arto Rissanen, Jari Kotoneva, Matti Ristolainen
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Abstract
The present invention relates to a process and an apparatus for purifying a mixture of terpene material and tall oil material for the production of biofuels and components thereof. The present invention relates further to hydroprocessing of the purified material to obtain biofuels and components thereof.
Claims35
A process for purifying a mixture of terpene material and tall oil material, wherein the mixture of terpene material and tall oil material is obtained by adding terpene material to the tall oil material, to improve separation of water from the mixture and the terpene material is added in an amount of 1-80% and wherein the process comprises the following steps
- (a) evaporating the mixture of terpene material and tall oil material in a first evaporation step (E) to produce a first fraction comprising hydrocarbons having a boiling point of up to 250° C. at normal pressure and water and a second fraction comprising fatty acids, resin acids, neutral substances and residue components,
- wherein the evaporation is performed at a temperature of 50 to 250° C. and at a pressure of 5 to 100 mbar,
- (b) evaporating said second fraction in at least one further evaporation step (G;
- F,G) to produce a third fraction comprising fatty acids, resin acids and neutral substances having a boiling point under 500° C. at normal pressure, and a residue fraction, and
- (c) recovering said first fraction, third fraction and residue fraction.
A process for purifying a mixture of terpene material and tall oil material, wherein the mixture of terpene material and tall oil material is obtained by adding terpene material to the tall oil material, and wherein the process comprises the following steps
- (a) evaporating the mixture of terpene material and tall oil material in a first evaporation step (E) to produce a first fraction comprising hydrocarbons having a boiling point of up to 250° C. (NTP) at normal pressure and water and a second fraction comprising fatty acids, resin acids, neutral substances and residue components, wherein the evaporation is performed at a temperature of 50 to 250° C. and at a pressure of 5 to 100 mbar,
- (b) evaporating said second fraction in at least one further evaporation step (G;
- F,G) wherein said at least one further evaporation step (F,G) is performed in two steps (F,G), whereby the first (F) of said two further evaporation steps is performed at a temperature of 180 to 350° C. and at a pressure of 0.1 to 40 mbar and the second (G) of said two further evaporation steps is performed at a temperature of 200 to 450° C. and at a pressure of 0 to 50 mbar, to produce a third fraction comprising fatty acids, resin acids and neutral substances having a boiling point under 500° C. (NTP) at normal pressure, and a residue fraction, and
- (c) recovering said first fraction, third fraction and residue fraction.
Dependencies are inferred from the claim text.