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    • 2. 发明公开
      EP3350290A1 A BATCH PROCESS FOR PRODUCING BIO-OIL FROM SPENT BLACK LIQUOR 有权
    • A BATCH PROCESS FOR PRODUCING BIO-OIL FROM SPENT BLACK LIQUOR
    • EP3350290A1
    • 2018-07-25
    • EP15904212.6
    • 2015-09-16
    • SCA Forest Products AB
    • KUGGE, Christian , HULTGREN, Anders , FRÖJDHOLM, Hampus
    • C10L1/02 , C07G1/00 , C08H7/00 , C12P7/64 , D21C11/00
    • C07G1/00 , C08H6/00 , C08H8/00 , C10L1/02 , D21C11/0007
    • A process for batch wise production of bio-oil comprising the steps of a) preparing a black liquor composition comprising kraft black liquor, and having a hydroxide ion concentration of -40 g/l, preferably 5-15 g/l based on the volume of black liquor, if necessary adjusting the hydroxide ion concentration by means of addition of an acidifying agent (AA1);b) reacting the black liquor composition in a reactor (R) and reacting the black liquor composition at 220-350 °C for 10-120 minutes, preferably 30-60 minutes in the absence of a solid catalyst; or at 180- 240 °C for 10-120 minutes, preferably 30-60 minutes, in the presence of a solid catalyst, thereby causing depolymerization of lignin in the black liquor;c) cooling the composition to a temperature below the boiling point of a solvent to be added in a subsequent step;d) acidifying the composition by adding one or more acidifying agents (AA2) until a pH of 4-5 is reached;e) adding a solvent (S) to the composition, in order to extract oil from the composition;f) separating the composition by phase separation in a first separation step (S1) intoan oil phase (A) comprising solvent, oil, and organic acids; a first water phase (B) comprising water, salts, and non-depolymerized lignin solids; a second water phase (C1) comprising water and salts;g) filtering (F2) the first phase (A) to remove any particles;h) desalting the filtered oil phase (A) byi) washing it by adding water and separating by phase separation in a second separation step (S2) into an oil phase (D) comprising oil and solvent, and a third water phase (C2) comprising salts; orii) adding adsorbent and/or absorbent material or ion exchange material, or combinations thereof;i) evaporating (E2) the solvent comprised in the oil phase (D), thus obtaining a bio-oil.
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
    • 3. 发明公开
      EP3350289A1 A CONTINUOUS PROCESS FOR PRODUCING BIO-OIL FROM SPENT BLACK LIQUOR 有权
    • A CONTINUOUS PROCESS FOR PRODUCING BIO-OIL FROM SPENT BLACK LIQUOR
    • EP3350289A1
    • 2018-07-25
    • EP15904211.8
    • 2015-09-16
    • SCA Forest Products AB
    • KUGGE, Christian , HULTGREN, Anders , FRÖJDHOLM, Hampus
    • C10L1/02 , C07G1/00 , C08H7/00 , C12P7/64 , D21C11/00
    • A process for continuously producing bio-oil comprising the steps of a) forming a black liquor composition in a mixing tank (T) by mixing kraft black liquor,acidifying agent (AA1), in an amount sufficient to adjust the hydroxide ion concentration of the black liquor to 1-40 g/l, preferably 5-15 g/l based on the volume of black liquor;b) introducing the black liquor composition into a reactor (R), applying a pressure of 5-150 bar of H2 or H2/CO, and a hydrogen/ black liquor composition flow ratio of 50-3000 l/l, preferably 100-600 l/l, and reacting the black liquor composition at 220-350 °C for 10-120 minutes, preferably 30-60 minutes in the absence of a solid catalyst; or at 180-240 °C for 10-120 minutes, preferably 30- 60 minutes, in the presence of a solid catalyst,thereby causing depolymerization of lignin in the black liquor composition;c) cooling the composition to a temperature below the boiling point of a solvent to be added in a subsequent step;d) acidifying the composition by adding one or more acidifying agents (AA2) until a pH of 4-5 is reached;e) adding a solvent (S) to the composition, in order to extract oil from the composition; f) separating the composition by phase separation in a first separation step (S1) into an oil phase (A) comprising solvent, oil, and organic acids; a first water phase (B) comprising water, salts and non-depolymerized lignin solids; a second water phase (C1) comprising water and salts;g) filtering (F2) the first phase (A) to remove any particles;h) desalting the filtered first phase (A) by i) washing it by adding water and separating by phase separation in a second separation step (S2) into an oil phase (D) comprising oil and solvent, and a third water phase (C2) comprising salts; or ii) adding adsorbent and/or absorbent material or ion exchange material, or combinations thereof;h) evaporating (E2) the solvent comprised in the oil phase (D), thus obtaining a bio-oil;and j) recycling solvent evaporated in step i) to step e).
    • 基本信息 添加关注 加入工作空间 PDF全文 PDF下载 全文下载 相似专利 双屏查看 权利要求书 说明书全文 Global Dossier Espacenet 法律信息 同族专利 专利引用
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