Methods are provided to prepare a low sulfur fuel from hydrocarbon sources, such as light tight oil and high sulfur fuel oil, often less desired by conventional refiners, who split crude into a wide range of differing products and may prefer presence of wide ranges (C3 or C5 to C20 or higher) of hydrocarbons. These fuels can be produced by separating feeds into untreated and treated streams, and then recombining them. Such fuels can also be formulated by combinations of light, middle and heavy range constituents in a selected manner as claimed. Not only low in sulfur, the fuels of this invention are also low in nitrogen and essentially metals free. Fuel use applications include on-board large marine transport vessels but also on-shore for large land based combustion gas turbines, boilers, fired heaters and transport vehicles and trains.

A process for the reuse of oilfield drilling waste with an natural affinity for oil which has had at least a portion of the contaminants removed using a remediation technology. The drilling waste can be further refined to ensure the waste meets a desired particle size distribution and thereafter sent for reuse by mixing the drilling waste with hot bituminous tar and thereafter using the liquids phase in roofing materials. A method of mixing the drilling waste with conventional fillers is also described to create a blended mixture of drilling waste and conventional fillers to create a new hybrid filler which is mixed with hot bituminous tar for use in roofing materials.

The use of recycled materials can have significant economic value. With the increasing quantity of recycled material used in viscoelastic materials, especially asphalt mixture, understanding how they interact with original materials to produce a mixture that performs successfully, becomes critical. Currently, the technology to determine the effect of additives on the performance of asphalt mixture is lacking. The present invention relates to a new unified methodology for mechanical testing of asphalt mixture and other viscoelastic materials that improves the current practice in speed, convenience, and accuracy. A new improved specimen mounting method on Dynamic Shear Rheometer (DSR), a new recovery method for fine portion of asphalt mixture, and three new tests for the performance of recovered material using DSR is disclosed. The new methods provide performance grading of asphalt mixtures that is new to the industry and provide necessary tools for determining the effect of recycled materials on performance.

In a system and method for processing recycled asphalt pavement or aggregate for asphalt production, a heating and drying unit includes a trough positioned within an external housing. A hollow auger is positioned in the trough, such that the recycled asphalt pavement or aggregate received at a first end of the trough is transported to a second end of the trough via rotation of the hollow auger. The trough is constructed of two or more sections to allow for thermal expansion, with only one end of each of the two or more sections connected to the external housing. Heated air is introduced into the trough via an inlet and exits the trough via an outlet. Heated oil is pumped through the hollow auger, entering via an inlet and exiting via an outlet. The heated air and heated oil raise the temperature of the recycled asphalt pavement or aggregate.

A method for installing hot asphalt pavement includes heating an aggregate to a temperature of from about 350 F. to about 400 F. using an emitter comprising a birefringent material, the emitter generating electromagnetic radiation having a wavelength of from 2 microns to 1 millimeter, wherein the aggregate is a recycled asphalt pavement; adding the aggregate to an asphalt in a mill to yield a mixture of aggregate with baked-on asphalt; laying the mixture down over a base to form a first layer of lift; and compacting the first layer.

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.

The present invention provides a densifying agent adopted a total weight of a refined pitch which is 100 as a basis, the composition of the refined pitch includes 19-30 toluene insolubles (TI) by weight, 0.10.3 quinoline insolubles (QI) by weight, 00.001 ash by weight and 1830 quinoline solubles (QS) by weight, in which the temperature of the softening point of the refined pitch is in the range of about 120 C. to 140 C. Accordingly, the amount of the toluene insolubles (TI) and the small amount of the quinoline insolubles (QI) can be mixed with the carbon-based material to increase the density of the carbon-based material, and the content of the quinoline solubles (QS) is used for adjusting the binding effect of the densifying agent with the binder.

Methods are provided to prepare a low sulfur fuel from hydrocarbon sources, such as light tight oil and high sulfur fuel oil, often less desired by conventional refiners, who split crude into a wide range of differing products and may prefer presence of wide ranges (C3 or C5 to C20 or higher) of hydrocarbons. These fuels can be produced by separating feeds into untreated and treated streams, and then recombining them. Such fuels can also be formulated by combinations of light, middle and heavy range constituents in a selected manner as claimed. Not only low in sulfur, the fuels of this invention are also low in nitrogen and essentially metals free. Fuel use applications include on-board large marine transport vessels but also on-shore for large land based combustion gas turbines, boilers, fired heaters and transport vehicles and trains.

Methods are provided to prepare a low sulfur fuel from hydrocarbon sources, such as light tight oil and high sulfur fuel oil, often less desired by conventional refiners, who split crude into a wide range of differing products and may prefer presence of wide ranges (C3 or C5 to C20 or higher) of hydrocarbons. These fuels can be produced by separating feeds into untreated and treated streams, and then recombining them. Such fuels can also be formulated by combinations of light, middle and heavy range constituents in a selected manner as claimed. Not only low in sulfur, the fuels of this invention are also low in nitrogen and essentially metals free. Fuel use applications include on-board large marine transport vessels but also on-shore for large land based combustion gas turbines, boilers, fired heaters and transport vehicles and trains.

Methods are provided to prepare a low sulfur fuel from hydrocarbon sources, such as light tight oil and high sulfur fuel oil, often less desired by conventional refiners, who split crude into a wide range of differing products and may prefer presence of wide ranges (C3 or C5 to C20 or higher) of hydrocarbons. These fuels can be produced by separating feeds into untreated and treated streams, and then recombining them. Such fuels can also be formulated by combinations of light, middle and heavy range constituents in a selected manner as claimed. Not only low in sulfur, the fuels of this invention are also low in nitrogen and essentially metals free. Fuel use applications include on-board large marine transport vessels but also on-shore for large land based combustion gas turbines, boilers, fired heaters and transport vehicles and trains.