Asphalt compositions are provided that include bio-oil. Some compositions allow for upgrading of deasphalter rock to asphalt with a performance grade suitable for use as paving asphalt by addition of bio-oil to the deasphalter rock. Other compositions allow for upgrading of paving grade asphalt to roofing asphalt by addition of bio-oil followed by oxidation. Methods of forming asphalt compositions including bio-oil are also provided.

A asphalt binder modifier or a stand-alone asphalt binder and the method of making the asphalt binder or binder modifier are disclosed. The asphalt modifier or binder consisting of treated re-refined engine oil bottoms/VTB's treated by injecting air into re-refining engine oil bottoms/VTB's at temperatures between 150° F. and 550° F. The re-refined engine oil can be processed with ground tire rubber. The binder modifier was blended with various paving and roofing asphalts to form performance-enhanced modified asphalt binders used in paving, roofing, and industrial products.

A asphalt binder modifier or a stand-alone asphalt binder and the method of making the asphalt binder or binder modifier are disclosed. The asphalt modifier or binder consisting of treated re-refined engine oil bottoms/VTB's treated by injecting air into re-refining engine oil bottoms/VTB's at temperatures between 150° F. and 550° F. The re-refined engine oil can be processed with ground tire rubber. The binder modifier was blended with various paving and roofing asphalts to form performance-enhanced modified asphalt binders used in paving, roofing, and industrial products.

The present application relates to a method to prevent the emission of hydrogen sulphide in the production of hot bitumen or asphalt having a temperature of between 150 and 200° C., wherein the method comprises the steps of providing a bituminous or asphalt mixture, heating the mixture until a temperature of between 150-200° C. and adding an aqueous calcium nitrate solution or a calcium nitrate powder while mixing the bituminous or asphalt mixture. The present application furthermore relates to the use of an aqueous calcium nitrate solution or a calcium nitrate powder during mixing of a bituminous or asphalt mixture in the production of a hot bitumen or asphalt having a temperature of between 150 and 200° C. to prevent the emission of hydrogen sulphide.

The present application relates to a method to prevent the emission of hydrogen sulphide in the production of hot bitumen or asphalt having a temperature of between 150 and 200° C., wherein the method comprises the steps of providing a bituminous or asphalt mixture, heating the mixture until a temperature of between 150-200° C. and adding an aqueous calcium nitrate solution or a calcium nitrate powder while mixing the bituminous or asphalt mixture. The present application furthermore relates to the use of an aqueous calcium nitrate solution or a calcium nitrate powder during mixing of a bituminous or asphalt mixture in the production of a hot bitumen or asphalt having a temperature of between 150 and 200° C. to prevent the emission of hydrogen sulphide.

A asphalt binder modifier or a stand-alone asphalt binder and the method of making the asphalt binder or binder modifier are disclosed. The asphalt modifier or binder consisting of treated re-refined engine oil bottoms/VTB's treated by injecting air into re-refining engine oil bottoms/VTB's at temperatures between 150 F. and 550 F. The re-refined engine oil can be processed with ground tire rubber. The binder modifier was blended with various paving and roofing asphalts to form performance-enhanced modified asphalt binders used in paving, roofing, and industrial products.

This invention provides for a method for producing polymer modified asphalt using base asphalt (bitumen) blended with partially air blown (puffed) asphalt which is further modified with polymers and additives to attain desired properties for industrial applications. The partially blown or blown asphalt is oxidized to a target softening point to suit the application. In another embodiment, the base asphalt is blended with hard PEN asphalt (Zero PEN Asphalt) which is further modified with polymers and additives to attain desired properties. By using the partially oxidized asphalt or blending the base asphalt with partially oxidized asphalt or hard PEN asphalt, the amount of polymers and additives needed to achieve desired properties and performance are significantly reduced. This technique can be used to attain polymer modified asphalt having a highly desirable combination of characteristics not otherwise attainable using the base asphalt.

This invention provides for a method for producing polymer modified asphalt using base asphalt (bitumen) blended with partially air blown (puffed) asphalt which is further modified with polymers and additives to attain desired properties for industrial applications. The partially blown or blown asphalt is oxidized to a target softening point to suit the application. In another embodiment, the base asphalt is blended with hard PEN asphalt (Zero PEN Asphalt) which is further modified with polymers and additives to attain desired properties. By using the partially oxidized asphalt or blending the base asphalt with partially oxidized asphalt or hard PEN asphalt, the amount of polymers and additives needed to achieve desired properties and performance are significantly reduced. This technique can be used to attain polymer modified asphalt having a highly desirable combination of characteristics not otherwise attainable using the base asphalt.

The present invention relates to a method for producing an impregnated pitch from a petroleum-based raw material and to an impregnated pitch produced using the same, and when the method for producing an impregnated pitch according to the present invention is used, it is possible to produce an impregnated pitch having a high carbonization yield (40 wt % or more) and low quinoline insoluble matter (QI, 2% or less) for improving efficiency of an impregnation process from a petroleum-based raw material. Therefore, when an impregnation process is applied to a carbon compact by using the impregnated pitch according to the present invention, it is possible to remarkably reduce micropores inside the carbon compact, and to produce a carbon compact having physical properties such as excellent electrical conductivity and mechanical strength.

The present invention relates to a method for producing an impregnated pitch from a petroleum-based raw material and to an impregnated pitch produced using the same, and when the method for producing an impregnated pitch according to the present invention is used, it is possible to produce an impregnated pitch having a high carbonization yield (40 wt % or more) and low quinoline insoluble matter (QI, 2% or less) for improving efficiency of an impregnation process from a petroleum-based raw material. Therefore, when an impregnation process is applied to a carbon compact by using the impregnated pitch according to the present invention, it is possible to remarkably reduce micropores inside the carbon compact, and to produce a carbon compact having physical properties such as excellent electrical conductivity and mechanical strength.