摘要:
The present description relates to a method and system for generating a fuel from high sulfur fuel waste materials having a reduced SO2 emission. In one example, the fuel may include petroleum coke, a biomass constituent, and an alkali substituent. Further in another example, the fuel may include iron oxide catalyst increasing the capture of SO2.
摘要:
Provided herein is a method for upgrading a bio-oil using a supercritical alcohol, and the bio-oil upgraded by the method, the method including removing oxygen existing in the molecule of the bio-oil using the supercritical state alcohol as a solvent and reacting the bio-oil and the alcohol solvent at supercritical state so as to increase the energy content, removing organic acids that increase the acidity of the bio-oil including formic acid and acetic acid or converting the organic acids to other materials so as to reduce the acidity, and converting hydrophilic materials in the bio-oil to hydrophobic materials so as to reduce the moisture content, and increasing the pH of the bio-oil to reduce the corrosiveness, thereby providing the effectiveness in upgrading a bio-oil.
摘要:
High energy (e.g., ultrasonic) mixing of a hydrocarbon feedstock and reactants comprised of an oxidation source, acid, and optional catalyst yields a liquid hydrocarbon product having increased cetane number. Ultrasonic mixing creates cavitation, which involves formation and violent collapse of micron-sized bubbles, which greatly increases reactivity of the reactants. Cavitation substantially increases cetane number compared to reactions carried out using conventional mixing processes, such as simple mechanical stirring. An aqueous mixture comprising water and acid can be pretreated with ozone or other oxidizer using ultrasonic cavitation prior to reacting the pretreated mixture with a hydrocarbon feedstock to promote cetane-increasing reactions. Controlling temperature inside the reactor promotes beneficial cetane-increasing reactions while minimizing formation of water-soluble sulfones.
摘要:
The invention relates to a device for dispensing a liquid additive into a fuel circulation circuit for an internal combustion engine, comprising a reservoir (12) of liquid additive allowing an additive to be distributed into the fuel circulation circuit by means of a distribution line (16), characterized in that it comprises an additive chamber (22) in communication with the fuel circulation circuit and at least one wall (32) that is mobile and fluidtight between said additive chamber and the additive reservoir which, on the one hand, provides a fluidtight division and, on the other hand, maintains equal pressure between the additive in the additive reservoir and the fuel in the additive chamber.
摘要:
The present description relates to a method and system for generating a fuel from high sulfur fuel waste materials having a reduced SO2 emission. In one example, the fuel may include petroleum coke, a biomass constituent, and an alkali substituent. Further in another example, the fuel may include iron oxide catalyst increasing the capture of SO2.
摘要:
The present description relates to a method and system for generating a fuel pellet from high sulfur fuel waste materials having a reduced SO2 emission. In one example, the fuel pellet may include petroleum coke, a biomass constituent, and an alkali substituent. Further in another example, the fuel pellet may include iron oxide catalyst increasing the capture of SO2.
摘要:
The present invention describes a process for the production of biofuel, said process comprising, pretreating a feedstock, mixing a catalyst with said feedstock, transferring the mixture of catalyst and feedstock into a reactor,and subjecting said mixture to a heating sequence by applying microwave energy thereto, wherein the catalyst comprises an aluminosillicate mineral, the percentage of aluminosillicate mineral in the catalyst-feedstock mixture is less than 10% (w/w), and the temperature of the mixture of catalyst and feedstock is no higher than 450° C. during the process.
摘要:
A fuel synthesis device includes: a supplier to supply CO2 and H2 gasses; a fuel synthesis catalyst to chemically react the CO2 and H2 gasses to synthesize fuel; a gas-liquid separator to liquefy the fuel into liquid and separate the liquid from a gas containing unreacted CO2 and H2 gasses, and CH4 gas as a side product; a return path to return the separated gas to a point between the supplier and the fuel synthesis catalyst; a bypass path to bypass, and merge downstream of, the return path, and to include a CH4 separator to separate the CH4 and a CH4 oxidation catalyst to oxidize the CH4; and a switching valve to selectively switch between communication with the return path and communication with the bypass path, wherein whether the switching valve communicates with the return path or bypass path is controlled based on the density of CH4.
摘要:
Disclosed is a catalyst for desulfurization, including (a) an oxide selected from among SiO2, Al2O3, Fe2O3, TiO2, MgO, MnO, CaO, Na2O, K2O and P2O3, (b) a metal selected from among Li, Cr, Co, Ni, Cu, Zn, Ga, Sr, Cd and Pb, and (c) a liquid compound selected from among sodium tetraborate (Na2B4O7.10H2O), sodium hydroxide (NaOH), sodium silicate (Na2SiO3) and hydrogen peroxide (H2O2). The catalyst of the invention has a 2:1 type layered structure in which one octahedral layer is interposed between two tetrahedral layers and which has a net negative charge due to occupation of only two of three positively charged sites in the octahedral layer, and the catalyst for desulfurization is provided in the form of a metal chelate compound through chelation with a metal ion, whereby sulfur oxide (SOx) can be adsorbed and removed at high efficiency upon combustion of a combustible substance.
摘要:
A mobile diesel fuel refinery system comprise a particulate filter adapted to remove particulates from diesel fuel flowing through the diesel fuel conduction system, a water filter adapted to remove water from diesel fuel flowing through the diesel fuel conduction system following its passage through the particulate filter, a magnetic field of sufficient strength to further refine the diesel fuel flowing through the diesel fuel conduction system following its passage through the water filter, a catalyst injector configured to inject the catalyst from a catalyst tank into the diesel fuel flowing through the diesel fuel conduction system following its passage through the magnetic field, a dispensing conduit configured to conduct the diesel fuel from the diesel fuel refinement apparatus following injection of the catalyst.