The subject invention provides microbe-based products, as well as their use to improve oil well production and increase the value of heavy crude oil. Specifically, the subject invention provides cultivated yeast products, which can be applied to oil and/or oil and gas production equipment to improve production and increase the economic value of heavy crude oil by, for example, upgrading heavy oils and/or converting heavy hydrocarbon substances, such as asphalts, asphaltenes, tars, bitumens and/or petcokes into lighter hydrocarbon substances.

The subject invention provides microbe-based products, as well as their use to improve oil well production and increase the value of heavy crude oil. Specifically, the subject invention provides cultivated yeast products, which can be applied to oil and/or oil and gas production equipment to improve production and increase the economic value of heavy crude oil by, for example, upgrading heavy oils and/or converting heavy hydrocarbon substances, such as asphalts, asphaltenes, tars, bitumens and/or petcokes into lighter hydrocarbon substances.

The subject invention provides microbe-based products, as well as their use to improve oil production and refining efficiency by, for example, remediating the disposable layers in oil tanks and other oil storage units. In preferred embodiments, the microbe-based products comprise biochemical-producing yeast and growth by-products thereof, such as, e.g., biosurfactants. The subject invention can be used to remediate rag layer and/or other dissolved solid layers that form in water-oil emulsions. Furthermore, the subject invention can be used for remediating solid impurities, such as sand, scale, rust and clay, in produced water, flow-back, brine, and/or fracking fluids.

The subject invention provides microbe-based products, as well as their use to improve oil production and refining efficiency by, for example, remediating the disposable layers in oil tanks and other oil storage units. In preferred embodiments, the microbe-based products comprise biochemical-producing yeast and growth by-products thereof, such as, e.g., biosurfactants. The subject invention can be used to remediate rag layer and/or other dissolved solid layers that form in water-oil emulsions. Furthermore, the subject invention can be used for remediating solid impurities, such as sand, scale, rust and clay, in produced water, flow-back, brine, and/or fracking fluids.

Provided are embodiments that include a hydrocarbon fluid processing system including an ultrasonic hydrocarbon degassing unit including a vapor recovery vessel adapted to direct flow of a hydrocarbon fluid mixture along a flowpath extending through an interior of the vapor recovery vessel, and an ultrasonic transducer system disposed inside the vapor recovery vessel and in the flowpath of the hydrocarbon fluid mixture. The hydrocarbon fluid mixture including a hydrocarbon liquid and a gas entrained in the hydrocarbon liquid, the ultrasonic transducer system adapted to transmit ultrasonic signals into the hydrocarbon fluid mixture along the flowpath, and the ultrasonic signals adapted to separate the gas from the hydrocarbon liquid.

Provided are embodiments that include a hydrocarbon fluid processing system including an ultrasonic hydrocarbon degassing unit including a vapor recovery vessel adapted to direct flow of a hydrocarbon fluid mixture along a flowpath extending through an interior of the vapor recovery vessel, and an ultrasonic transducer system disposed inside the vapor recovery vessel and in the flowpath of the hydrocarbon fluid mixture. The hydrocarbon fluid mixture including a hydrocarbon liquid and a gas entrained in the hydrocarbon liquid, the ultrasonic transducer system adapted to transmit ultrasonic signals into the hydrocarbon fluid mixture along the flowpath, and the ultrasonic signals adapted to separate the gas from the hydrocarbon liquid.

Provided is a p-type TiO.sub.2/n-type WO.sub.3 heterojunction catalyst and a preparation method and use thereof. The catalyst comprises p-type TiO.sub.2 and n-type WO.sub.3 supported on a surface of the p-type TiO.sub.2.

The invention provides environmentally-friendly compositions and methods for reducing the viscosity of crude oil using microorganisms and/or biosurfactants produced by microorganisms.

The invention provides environmentally-friendly compositions and methods for reducing the viscosity of crude oil using microorganisms and/or biosurfactants produced by microorganisms.

The subject invention provides microbe-based products, as well as their use to improve oil production and refining efficiency by, for example, remediating the disposable layers in oil tanks and other oil storage units. In preferred embodiments, the microbe-based products comprise biochemical-producing yeast and growth by-products thereof, such as, e.g., biosurfactants. The subject invention can be used to remediate rag layer and/or other dissolved solid layers that form in water-oil emulsions. Furthermore, the subject invention can be used for remediating solid impurities, such as sand, scale, rust and clay, in produced water, flow-back, brine, and/or fracking fluids.