A CIR train that is adapted to traverse a roadway of asphalt pavement in order to recycle and repair the asphalt pavement includes a milling machine for removing asphalt paving material from the roadway. The CIR train also includes an asphalt cement supply tank and a mechanism for dispensing asphalt cement onto asphalt paving material that has been removed from the roadway. A heater is in fluid communication with the asphalt cement supply tank and the mechanism for dispensing asphalt cement on the asphalt paving material that has been removed from the roadway. The heater is adapted to heat the asphalt cement from the asphalt cement supply tank prior to said asphalt cement being dispensed on the asphalt paving material that has been removed from the roadway.

A process for producing mesophase pitch from high-temperature coal tar comprises: removing salts and quinoline insoluble fraction from a high-temperature coal tar to obtain a decant oil; using the decant oil as a hydrogenation feedstock, or pre-distilling the decant oil to obtain a residue with a boiling point higher than 230 and formulating the residue into a hydrogenation feedstock; catalytic hydrorefining the hydrogenation feedstock to obtain a hydrofined oil; distilling the hydrofined oil to obtain hydrogenated pitch; and subjecting the hydrogenated pitch to the thermal polymerization to obtain the mesophase pitch. The process has features such as an easily controllable degree of hydrogenation, complete removal of impurities, good raw material flowability, not tending to form the carbon deposition and the coking during the process, and not tending to jam the reactor. The product has a high content of mesophase pitch, a low softening point and a low impurity content.

A raw material pitch for carbon fiber production, with which carbon fiber excellent in tensile strength can be produced at relatively low costs, is provided. The raw material pitch is obtained from coal, is a pitch for producing carbon fiber by melt spinning, and contains oxygen in a content of 1.0% by mass or more and a toluene-soluble component in a content of 20% by mass or more. The coal is preferably bituminous coal or sub-bituminous coal. The raw material pitch is preferably prepared by subjecting a solvent-soluble component separated from a thermal decomposition product of coal in a solvent by a solvent extraction treatment at a temperature of less than 300 C. to a heat treatment at a temperature of 150 C. or more.

A method for providing bituminous backings for the construction industry, includes the following steps obtaining a semi-finished product having a reinforcement to which a bituminous layer is applied, on the outer surface of which inert materials are or are not distributed and/or inside which the inert materials are embedded. The method also includes annealing the semi-finished product, directly following the step of bituminization of the reinforcement or after the step of applying bitumen to the reinforcement so as to embed the inert materials in the bituminous layer, while at the same time drying the outer surface.

Processes comprising: heat treating a heavy hydrocarbon feedstock in a heat treatment unit to produce a first effluent comprising a heat treated product; at least partially removing a mixture of gas and distillate from the first effluent in a first separation unit to produce a second effluent comprising a separation bottom product; deasphalting the second effluent in a second separation unit in the presence of a first solvent to produce: a soluble product fraction comprising a first portion of the first solvent, a deasphalted oil (DAO) product, and a first pitch product; an insoluble product fraction comprising a second portion of the first solvent and a portion of the first pitch product; and at least partially removing the second portion of the first solvent from the first pitch product in a third separation unit to produce a purified pitch product.

A method for forming mesophase pitch can include applying a stimulus to a first amount of coal tar to form a first amount of mesophase pitch. The stimulus can include one or more of an electromagnetic field (EMF) or a magnetic field. The method can further include evaluating a characteristic of the first amount of mesophase pitch, changing a parameter of the stimulus in response to evaluating the characteristic of the first amount of mesophase pitch, and applying the stimulus exhibiting the changed parameters to a second amount of coal tar to form mesophase pitch.

Provided are a method of preparing a high softening point pitch and the high softening point pitch prepared thereby, in which a polyene radical intermediate is formed, and an alkylaromatic radial material is linearly linked to the polyene radical intermediate in a benzyl or methylene form to be polymerized. The method includes performing heat treatment by adding a compound, which is able to a polyene radical intermediate, to 1- to 4-ring alkylaromatic condensates to produce a basic pitch, and performing vacuum heat treatment for the basic pitch.

A method of manufacturing a refined pitch includes the steps of providing a pitch and performing a heated blending process thereon to produce a pitch solution; adding an aromatic additive to the pitch solution; adding an aliphatic additive to the pitch solution; performing a quiescent sedimentation process on the pitch solution; and separating a liquid part from the pitch solution. Therefore, the method allows a concentrated mesophase pitch to be manufactured quickly and by heat processing.

The present disclosure provides a process that includes providing bitumen; performing thermal upgrading on the bitumen to form mildly upgraded bitumen; distilling the mildly upgraded bitumen to form streams of naphtha; distillates and/or gas oils; and residue; combining the naphtha and residue to form a naphtha/residue stream, which causes deasphalting to occur, and forming streams of deasphalted oil and high-carbon pitch comprising asphaltenes; and adding the distillates and/or gas oils to the deasphalted oil to form partially upgraded bitumen.

The present invention relates to methods and compositions for improving froth quality and bitumen recovery during bitumen extraction. In particular, the disclosure provides a method for using multivalent ionic liquids and binary process aid combinations comprising tricholine citrate for improving bitumen extraction efficiency and reducing water and mineral solids in bitumen froth.