Abstract: Embodiments herein relate to a system (200; 300; 400; 500) for obtaining methanol from foul condensate (101) of a pulping process. The system (200; 300; 400; 500) comprises a primary stripper (102) arranged to strip the foul condensate (101) from pollutants, whereby a first methanol-containing condensate is obtained from the polluted stripper off gases (SOGs). The system (200; 300; 400; 500) also comprises a first acidification unit (202) arranged to acidify the first methanol-containing condensate. Further, the system (200; 300; 400; 500) comprises a secondary stripper (204) arranged to strip the acidified first methanol-containing condensate from pollutants to obtain a second methanol-containing condensate, and a distillation column (107) arranged to distil the second methanol-containing condensate from the secondary stripper (204) so as to obtain methanol.

Abstract: Embodiments herein relate to a system (200; 300; 400; 500) for obtaining methanol from foul condensate (101) of a pulping process. The system (200; 300; 400; 500) comprises a primary stripper (102) arranged to strip the foul condensate (101) from pollutants, whereby a first methanol-containing condensate is obtained from the polluted stripper off gases (SOGs). The system (200; 300; 400; 500) also comprises a first acidification unit (202) arranged to acidify the first methanol-containing condensate. Further, the system (200; 300; 400; 500) comprises a secondary stripper (204) arranged to strip the acidified first methanol-containing condensate from pollutants to obtain a second methanol-containing condensate, and a distillation column (107) arranged to distil the second methanol-containing condensate from the secondary stripper (204) so as to obtain methanol.

Abstract: The present invention relates to a method for production of p-cymene from cyclic monoterpenes in the presence of an Fe(III)-salt as a catalyst. In particular it relates to a method for production of p-cymene from cyclic monoterpenes containing high levels of sulphur, such as crude sulphate turpentine. The method can be performed as two different, subsequent processes for the isomerization and oxidation reactions, or in a single process wherein these reactions take place at the same time.

Abstract: The invention relates to a method of isolating cymene comprising the following steps: a) providing a solution comprising cymene and monoterpenes, b) adding sulphuric acid to the solution in a) such that the concentration of sulphuric acid in the solution is at least 0.5% (w/w), such as 1-25% (w/w), c) distilling the solution mixture from step b) such that a target chemical stream enriched in cymene is obtained and separated from a residual stream.