Processes for preparing a low particulate liquid hydrocarbon product are provided and include blending a tar stream containing particles with a fluid and heating to a temperature of 250° C. or greater to produce a fluid-feed mixture that contains tar, the particles, and the fluid. The fluid-feed mixture contains about 20 wt % or greater of the fluid, based on a combined weight of the tar stream and the fluid. Also, about 25 wt % to about 99 wt % of the particles in the tar stream are dissolved or decomposed when producing the fluid-feed mixture.

Processes for preparing a low particulate liquid hydrocarbon product are provided and include blending a tar stream containing particles with a fluid and heating to a temperature of 250° C. or greater to produce a fluid-feed mixture that contains tar, the particles, and the fluid. The fluid-feed mixture contains about 20 wt % or greater of the fluid, based on a combined weight of the tar stream and the fluid. Also, about 25 wt % to about 99 wt % of the particles in the tar stream are dissolved or decomposed when producing the fluid-feed mixture.

A treatment composition for reducing viscosity, pour point, and precipitate content of a hydrocarbon fluid at temperatures below 90° F., preferably 34° F. to 90° F. The treatment composition includes one or more mixed fatty acid methyl esters, an aromatic mixture consisting essentially of C.sub.9 to C.sub.15 aromatic compounds, and a main solvent consisting essentially of low odor kerosene, low odor diesel, or a mixture of low odor diesel or low odor kerosene. The treatment composition solubilizes hydrocarbon deposits for removal. The treatment composition also solubilizes paraffins and asphaltenes in a hydrocarbon fluid to prevent or mitigate the formation of hydrocarbon deposits.

A treatment composition for reducing viscosity, pour point, and precipitate content of a hydrocarbon fluid at temperatures below 90° F., preferably 34° F. to 90° F. The treatment composition includes one or more mixed fatty acid methyl esters, an aromatic mixture consisting essentially of C.sub.9 to C.sub.15 aromatic compounds, and a main solvent consisting essentially of low odor kerosene, low odor diesel, or a mixture of low odor diesel or low odor kerosene. The treatment composition solubilizes hydrocarbon deposits for removal. The treatment composition also solubilizes paraffins and asphaltenes in a hydrocarbon fluid to prevent or mitigate the formation of hydrocarbon deposits.

Corrosion and/or calcium scale deposition on a surface in contact with corrosion forming components and/or scale forming components within a subterranean formation may be decreased, prevented, and/or inhibited by contacting the surface with at least one protein. The protein(s) may be or include, but is not limited to, at least one aspein protein, at least one aspolin protein, at least one dentine protein, at least one DRICH-1 protein, at least one nacrein protein, at least one SMDT-1 protein, derivatives thereof, fragments thereof, mimetics thereof, and combinations thereof. The surface may be or include, but is not limited to a metal surface, a plastic surface, a ceramic surface, a painted surface, a coated surface, and combinations thereof.

Corrosion and/or calcium scale deposition on a surface in contact with corrosion forming components and/or scale forming components within a subterranean formation may be decreased, prevented, and/or inhibited by contacting the surface with at least one protein. The protein(s) may be or include, but is not limited to, at least one aspein protein, at least one aspolin protein, at least one dentine protein, at least one DRICH-1 protein, at least one nacrein protein, at least one SMDT-1 protein, derivatives thereof, fragments thereof, mimetics thereof, and combinations thereof. The surface may be or include, but is not limited to a metal surface, a plastic surface, a ceramic surface, a painted surface, a coated surface, and combinations thereof.

A method of mitigating fouling in a delayed coking unit heater may include forming a plastic mixture including a plastic material and a carrier. The plastic mixture may be combined with a coker feedstock upstream of a coke drum.

A method is provided for reducing foaming within a coke drum of a delayed coking unit. The method may include forming a plastic mixture including a plastic material and a carrier. The method may also include injecting the plastic mixture into the coke drum during operation of the coke drum.

The process begins by obtaining a first batch of monomers selected from a group of acrylates with a molecular weight equal to or less than butyl acrylate and/or methacrylate with a molecular weight equal to or less than butyl methacrylate. A second batch of monomers is then selected from a group of acrylates with a molecular weight greater than butyl acrylate and/or methacrylate with a molecular weight greater than butyl methacrylate. A mixture is then prepared by mixing the first batch of monomers and the second batch of monomers, wherein the second batch of monomers are greater than 50% by weight of the mixture. Finally, the mixture is polymerized to produce a drag reducing polymer. The drag reducing polymer is capable of imparting drag reducing properties in liquid hydrocarbons.

The process begins by obtaining a first batch of monomers selected from a group of acrylates with a molecular weight equal to or less than butyl acrylate and/or methacrylate with a molecular weight equal to or less than butyl methacrylate. A second batch of monomers is then selected from a group of acrylates with a molecular weight greater than butyl acrylate and/or methacrylate with a molecular weight greater than butyl methacrylate. A mixture is then prepared by mixing the first batch of monomers and the second batch of monomers, wherein the second batch of monomers are greater than 50% by weight of the mixture. Finally, the mixture is polymerized to produce a drag reducing polymer. The drag reducing polymer is capable of imparting drag reducing properties in liquid hydrocarbons.