An aircraft having vertical takeoff and landing capability provided with at least first and second laterally extending paddle wheels rotatable on a central axis perpendicular to the longitudinal axis of the aircraft fuselage and between its nose and tail.
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7297825 | Catalyst and process for LPG production A catalyst for producing a liquefied petroleum gas according to the present invention comprises a Pd-based methanol synthesis catalyst component and a β-zeolite catalyst component. It can be used in a reaction of carbon monoxide and hydrogen to give a hydrocarbon c... | 11/20/2007 |
| 7115670 | Fischer-Tropsch synthesis process A process for the conversion of synthesis gas to higher hydrocarbons by synthesis gas, at an elevated temperature and pressure, with a suspension of a particulate Fischer-Tropsch catalyst, in a system comprising at least one high shear mixing zone and a reactor vess... | 10/03/2006 |
| 7071238 | Fischer-tropsch process in the presence of a coolant introduced into the reactor system Process for the conversion of synthesis gas to hydrocarbons, at least a portion of which are liquid at ambient temperature and pressure, by contacting the synthesis gas at an elevated temperature and pressure with a suspension comprising a particulate Fischer-Tropsc... | 07/04/2006 |
| 7034062 | Fischer-tropsch process Process for the conversion of synthesis gas to higher hydrocarbons. A gaseous stream comprising synthesis gas is contacted at an elevated temperature and pressure with a suspension comprising a particulate Fischer-Tropsch catalyst suspended in a liquid medium, in a ... | 04/25/2006 |
| 7022741 | Gas agitated multiphase catalytic reactor with reduced backmixing The present invention provides an apparatus and method for optimizing the degree of backmixing within a gas agitated multiphase reactor at a given gas linear velocity. The embodiments of the present invention involve novel configurations of the multiphase reactor in... | 04/04/2006 |
| 6933324 | Method for performing a Fischer-Tropsch process using an iron-containing layered material A method for performing a Fischer-Tropsch process using as a catalyst (precursor) an iron-containing layered material selected from the group consisting of layered materials in which iron is present in the layered structure as divalent and/or trivalent metal (group ... | 08/23/2005 |
| 6855737 | Fischer-tropsch process A process for the production of liquid hydrocarbon products from synthesis gas in a system comprising a reaction zone and a gas separation zone wherein the process comprises: a) in the reaction zone, contacting synthesis gas at elevated temperature and pressure with... | 02/15/2005 |
| 6800101 | Deactivatable biocides for hydrocarbonaceous products The present invention relates to the use of deactivatable biocides for hydrocarbonaceous products, in particular, rapidly biodegradable hydrocarbonaceous products. The present invention also relates to methods of inhibiting growth and reproduction of microorganisms ... | 10/05/2004 |
| 6533945 | Fischer-Tropsch wastewater utilization The present invention is generally directed to handling the wastewater, or condensate, from a hydrocarbon synthesis reactor. More particularly, the present invention provides a process wherein the wastewater of a hydrocarbon synthesis reactor, such as a F... | 03/18/2003 |
| 6433029 | Methanol synthesis Methanol is synthesised in a synthesis loop wherein recycled unreacted gas, optionally together with part of the make-up gas, is passed through a bed of synthesis catalyst under methanol synthesis conditions, make-up gas is then added and the mixture pass... | 08/13/2002 |
| 6387963 | Methanol synthesis Methanol is synthesised in a synthesis loop wherein recycled unreacted gas, optionally together with part of the make-up gas, is passed through a bed of synthesis catalyst under methanol synthesis conditions, make-up gas is then added and the mixture pass... | 05/14/2002 |
| 5714657 | Natural gas conversion to higher hydrocarbons This patent is concerned with a unique process for converting natural gas into hydrocarbons. More particularly, it concerns a novel combination of processing steps wherein the natural gas is first converted into syn gas, the hydrogen of which is reacted w... | 02/03/1998 |
| 5620670 | Process for the production of hydrocarbons A process of converting a feed of hydrocarbon-containing gases into liquid hydrocarbon products including a first reaction of converting the feed into one to 2.5 parts of hydrogen to one part carbon monoxide in the presence of carbon dioxide and then seco... | 04/15/1997 |
| 5476877 | Particulate solids for catalyst supports and heat transfer materials A particulate, precalcined low silica content zirconia, especially one stabilizer with yttria, is useful as a catalyst support or as a heat transfer solids component for conducting chemical reactions at high temperature, in oxidizing, reducing or hydrothe... | 12/19/1995 |
| 5227407 | Water addition for increased CO/H2 hydrocarbon synthesis activity over catalysts comprising cobalt, ruthenium and mixtures thereof which may include a promoter metal The addition of water into a Fischer-Tropsch hydrocarbon synthesis reaction zone employing passing a CO and H2 feed mixture over a catalyst comprising cobalt, ruthenium and mixtures thereof preferably on a titania support and which may include ... | 07/13/1993 |
| 5173513 | Methanol synthesis In producing methanol by the reaction of carbon monoxide and hydrogen, a starting gas deficient in hydrogen, e.g. as produced by coal gasification, is mixed with a hydrogen rich gas and fed to a synthesis loop where it is mixed with unreacted gas from the... | 12/22/1992 |
| 4946477 | IGCC process with combined methanol synthesis/water gas shift for methanol and electrical power production The present invention relates to an improvement to a process for the production of methanol from synthesis gas containing carbon monoxide and hydrogen utilizing a three phase or liquid-phase reaction technology. The improvement to the process is the addit... | 08/07/1990 |
| 4904700 | Iron catalyst for preparation of polymethylene from synthesis gas This invention relates to a process for synthesizing hydrocarbons; more particularly, the invention relates to a process for synthesizing long-chain hydrocarbons known as polymethylene from carbon monoxide and hydrogen or from carbon monoxide and water or... | 02/27/1990 |
| 4762815 | Methanation catalysts Silicon containing methanation catalysts e.g. those prepared by coprecipitation techniques, may be stabilized to prevent leaching of silicon species by a hydrothermal treatment comprising heating the reduced catalyst in a steam reducing gas atmosphere, lo... | 08/09/1988 |
| 4565831 | Process for producing aromatic hydrocarbons from carbon monoxide and water A process is described using novel thallium-promoted iron catalysts in CO hydrogenation with steam. Mixtures of CO and steam are converted to liquid C6 -C13 hydrocarbons containing substantial amounts of C6 -C13... | 01/21/1986 |
| 4559363 | Process for reacting carbon monoxide and water A process for reacting carbon monoxide and water in the presence of a cadmium-containing catalyst is disclosed.... | 12/17/1985 |
| 4525482 | Process for producing a gas containing methane This invention provides an improved, simple and energy saving process for producing a gas containing methane, which process utilizes a reactor having a catalyst bed of a structure wherein a synthesis gas is allowed to pass perpendicularly to the longitudi... | 06/25/1985 |
| 4497910 | Process for methane synthesis by catalytic reduction of carbon monoxide in aqueous phase Process for the catalytic synthesis of methane by reaction of carbon oxides with hydrogen in the presence of liquid water, wherein the catalyst is formed of a carrier consisting either of coal or charcoal, preferably of plant origin, or of alumina-silica,... | 02/05/1985 |
| 4481305 | Process for the preparation of hydrocarbons Hydrocarbons and especially as gasoline are prepared by the catalytic conversion in two subsequent reactors of a synthesis gas containing hydrogen and carbon oxides and having a mole ratio CO/H2 above 1 and when the conversion commences a mole ... | 11/06/1984 |
| 4424282 | Process for the catalytic synthesis of hydrocarbons, particularly of methane, from hydrogen and carbon monoxide Methane is produced by passing hydrogen, carbon monoxide and an aqueous liquid phase downwardly through a fixed bed of a catalyst containing ruthenium on a carrier such as alumina, separating and externally coolng in a heat exchanger the resultant aqueous... | 01/03/1984 |
| 4407974 | Method of and apparatus for catalytic conversion of gases A method of catalytic conversion of feed gases, particularly of a low-sulphur gas mixture rich in carbon monoxide and hydrogen, into a product gas mixture containing methane and/or higher hydrocarbons under high pressure includes the step of removing heat... | 10/04/1983 |
| 4385193 | Process for the preparation of middle distillates Middle distillate hydrocarbons are produced from feed mixtures of carbon monoxide and hydrogen by contacting said feed at elevated temperature and pressure in a first stage with certain impregnated catalysts and contacting at least the middle distillate f... | 05/24/1983 |
| 4345038 | CO Hydrogenation process using steam and molybdenum oxycarbonitride catalyst A process for synthesizing light paraffinic hydrocarbons, preferably C1 -C3 in carbon number, from CO and steam is described utilizing novel molybdenum oxycarbonitride catalyst.... | 08/17/1982 |
| 4341531 | Production of methane-rich gas Methane-rich gas is produced by reacting gas mixtures comprising CO and at least one member selected from the group consisting of H2 and H2 O, such as synthesis gas, in a reactor containing an improved unsupported catalyst comprising... | 07/27/1982 |
| 4279830 | Conversion of synthesis gas to hydrocarbon mixtures utilizing dual reactors The conversion of less than 1 H2 /CO ratio syngas to high yield of C3 plus product is accomplished with a CO reducing catalyst comprising shift characteristics and the product of Fischer-Tropsch synthesis is converted to premium gaso... | 07/21/1981 |
| 4269784 | Process for converting CO and H2 O into hydrocarbons using water-soluble ruthenium catalysts A homogeneous process for preparing hydrocarbons from CO and H2 O, D2 O or T2 O employing a soluble ruthenium catalyst. The process comprises contacting CO and H2 O, D2 O or T2 O in the pre... | 05/26/1981 |
| 4211718 | Methanation process Methane is prepared by contacting carbon monoxide and hydrogen in the presence of a supported iridium-containing or rhodium-containing catalyst and a small, effective amount of steam to maintain methanation catalyst activity. In another embodiment, the me... | 07/08/1980 |
| 4170605 | Synthesis of ethylene glycol from carbon monoxide and hydrogen using a ruthenium complex catalyst and a pyridine base ligand A process for selectively producing ethylene glycol which comprises contacting carbon monoxide and hydrogen with a ruthenium complex catalyst and a pyridine base ligand.... | 10/09/1979 |
| 4170606 | Synthesis of ethylene glycol from carbon monoxide and hydrogen using an iridium complex catalyst and a pyridine base ligand A process for selectively producing ethylene glycol which comprises contacting carbon monoxide and hydrogen with an iridium complex catalyst and a pyridine base ligand.... | 10/09/1979 |
| 4126581 | Catalyst containing copper oxide and zinc oxide, its manufacture and its use for the conversion of carbon monoxide Catalyst for the conversion of carbon monoxide in the presence of water, to produce hydrogen, or in the presence of hydrogen, to produce methanol, said catalyst containing 10 - 60% by weight of copper oxide, 5 - 40% by weight of zinc oxide and 30 - 70% by... | 11/21/1978 |
| 4105591 | Method of preparing and filtering coprecipitated nickel-alumina catalysts A catalyst suitable for the high pressure gasification of heavy hydrocarbons to produce methane-containing gases is a calcined coprecipitated-alumina containing from 50- 65% Ni on a calcined unreduced basis. The catalyst contains (1) from 0 to not more th... | 08/08/1978 |
| 4011058 | Production of substitute natural gas from gasification of coal char A carbonaceous material is converted to a fuel gas which is fungible with natural gas by a combination of steps comprising gasifying the carbonaceous material in the presence of air and carbon dioxide, purifying the effluent stream and separating carbon m... | 03/08/1977 |
| 4005996 | Methanation process for the production of an alternate fuel for natural gas A process is provided for the catalytic enrichment of a gas having a low BTU level and which has been derived from the gasification of coal and which has been scrubbed for removal of impurities and for the partial removal of carbon dioxide. The process in... | 02/01/1977 |
| 3990867 | Process of producing a high-methane gas interchangeable with natural gas High-methane, low-hydrogen gas, interchangeable with natural gas, is prepared by reacting hydrocarbons with steam in the presence of a nickel-based catalyst at elevated temperatures and pressures. The hydrocarbons and the steam are fed to the reaction in ... | 11/09/1976 |
| 3973923 | Processes for the production of methane-containing gases A process for the production of a gas having a methane content between 40 and 99% by volume from a gas mixture which contains hydrogen, carbon dioxide, and at least 20% by weight of carbon monoxide which comprises the following steps: A. humidifying the g... | 08/10/1976 |