Method for upgrading an oil, a fuel product and a hydrocarbon product fraction

Abstract

Pyrolysis oil is upgraded by evaporating water from a mixture of the pyrolysis oil and a hydrocarbon having an atmospheric boiling point of at least 130° C. The method yields a de-watered pyrolysis oil mixture.

What is claimed is: 
     
         1 . A method for upgrading of a pyrolysis oil containing water comprising: (a) providing a mixture of said pyrolysis oil and a hydrocarbon having an atmospheric boiling point of at least 130° C.; and (b) evaporating water from the mixture to produce a de-watered pyrolysis oil mixture. 
     
     
         2 . The method of  claim 1  wherein the method additionally comprises the step of producing the mixture by mixing the pyrolysis oil and the hydrocarbon. 
     
     
         3 . The method as claimed in of  claim 2  wherein the mixture is produced by combining the pyrolysis oil and the hydrocarbon in a weight ratio of pyrolysis oil to hydrocarbon of at most 75/25. 
     
     
         4 . The method of  claim 1  wherein the hydrocarbon has an atmospheric boiling point of at least 150° C. 
     
     
         5 . The method of  claim 1  wherein the asphaltenes content of the hydrocarbon is equal to or more than 0.2% wt. 
     
     
         6 . The method of  claim 1  wherein the hydrocarbon is a hydrocarbon mixture comprising a refinery stream. 
     
     
         7 . The method of  claim 6  wherein the hydrocarbon mixture has an H/C ratio as determined by ASTM D5291 of at most 0.15 w/w and/or the hydrocarbon mixture has an asphaltenes content as determined by IP143, using n-heptane as a solvent of at least 0.7% wt. 
     
     
         8 . The method of  claim 1  wherein the water is evaporated by employing a bottom temperature in the range of from 50° C. to 200° C. and a pressure in the range of from 0.1 kPa to 60 kPa (absolute). 
     
     
         9 . The method of  claim 1  further comprising:
 c) converting the de-watered pyrolysis oil mixture in a hydrocarbon conversion process; and 
 (d) separating the product of the hydrocarbon conversion process into hydrocarbon product fractions. 
 
     
     
         10 . A fuel product produced by the method of  claim 1 . 
     
     
         11 . The fuel product of  claim 10  having
 (i) a solids content of at most 10% wt, relative to the weight of the pyrolysis oil, wherein solids content is as measured by using the Hot filtration test according to ASTM D4870, modified in that the prescribed rinsing of the filter employed in the Hot filtration test is followed by rinsing with ethanol; 
 (ii) a kinematic viscosity measured at 50° C. which kinematic viscosity has a value which is constant or variable within at most 15%, relative to the value at the start of the storage, during storage of the fuel product at 50° C. for a period of 14 days, wherein kinematic viscosity is as measured according to ASTM D445; and 
 (iii) a Total acid number (TAN) of at most 20% of the quotient A/B, wherein A represents the Total acid number of the pyrolysis oil and B represents the weight fraction of the pyrolysis oil in the mixture comprising the pyrolysis oil and the high boiling hydrocarbon, wherein Total acid number is as measured by using ASTM D664. 
 
     
     
         12 . A hydrocarbon product fraction produced by the method of  claim 9 .