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4 results about "Biorefinery" patented technology
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A biorefinery is a refinery that converts biomass to energy and other beneficial byproducts (such as chemicals). The International Energy Agency Bioenergy Task 42 defined biorefining as "the sustainable processing of biomass into a spectrum of bio-based products (food, feed, chemicals, materials) and bioenergy (biofuels, power and/or heat)" . As refineries, biorefineries can provide multiple chemicals by fractioning an initial raw material (biomass) into multiple intermediates (carbohydrates, proteins, triglycerides) that can be further converted into value-added products.. Each refining phase is also referred to as a "cascading phase". The use of biomass as feedstock can provide a benefit by reducing the impacts on the environment, as lower pollutants emissions and reduction in the emissions of hazard products. In addition, biorefineries are intended to achieve the following goals...
Systems and methods for producing high-purity carbon dioxide from carbon dioxide-containing gas streams
Described systems produce high-purity carbon dioxide from a CO2-rich gas, such as from CO2-rich tail gas produced as a waste stream during an upgrading or conditioning stage in a renewable natural gas (RNG) biorefinery. An example method comprises H2S filtration, compression, and cooling of the CO2-rich tail gas, subsequent filtration of oil, water, VOCs, and other sulfur-comprising compounds from the CO2-rich tail gas, and subsequent drying and compression of the CO2-rich tail gas. The CO2-rich tail gas is then condensed and a portion of CH4 is separated from the CO2-rich tail gas via flash separation and column distillation. The CO2-rich tail gas is then communicated into a reboiler to further separate CH4 from the CO2-rich tail gas. After subsequent further chilling / cooling, if the CO2-rich tail gas has a sufficiently high CO2 concentration, the CO2-rich tail gas is a finished CO2 product, such as food-grade CO2 or beverage-grade CO2.
Owner:EFI USA LLC
Method to treat and minimize sludge from biorefineries
It is a continuing goal to reduce the amount of sludge produced in a biorefinery while also improving oil quality and water quality. In one aspect, an exemplary method of minimizing sludge from biorefineries includes the steps of feeding a source feedstock into a degumming centrifuge, where the source feedstock is separated into wet oil and a primary sludge stream, and conveying a portion of the primary sludge stream to a three-phase centrifuge. At the three-phase centrifuge, the portion of the primary sludge stream is separated into recovered centrifuge oil, which is retrieved; centrifuged water, which is conveyed to a wastewater treatment plant; and centrifuged sludge. The remainder of the primary sludge stream is conveyed to a gravity separator, where the remainder of the primary sludge stream is separated into recovered oil and residual sludge. The residual oil is retrieved from the gravity separator.
Owner:BAKER HUGHES OILFIELD OPERATIONS LLC
Bioprocess for bioremediation and biorefinery of effluents using microalgae and low-cost illuminated bioreactors with full utilization of biomass, its uses and applications.
Owner:UNIV FEDRAL DE PELOTAS
Systems and methods for producing high-purity carbon dioxide from carbon dioxide-containing gas streams
Described systems produce high-purity carbon dioxide from a CO2-rich gas, such as from CO2-rich tail gas produced as a waste stream during an upgrading or conditioning stage in a renewable natural gas (RNG) biorefinery. An example method comprises H2S filtration, compression, and cooling of the CO2-rich tail gas, subsequent filtration of oil, water, VOCs, and other sulfur-comprising compounds from the CO2-rich tail gas, and subsequent drying and compression of the CO2-rich tail gas. The CO2-rich tail gas is then condensed and a portion of CH4 is separated from the CO2-rich tail gas via flash separation and column distillation. The CO2-rich tail gas is then communicated into a reboiler to further separate CH4 from the CO2-rich tail gas. After subsequent further chilling / cooling, if the CO2-rich tail gas has a sufficiently high CO2 concentration, the CO2-rich tail gas is a finished CO2 product, such as food-grade CO2 or beverage-grade CO2.
Owner:EFI USA LLC