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| Number | Title | Issue Date |
| 7935226 | Method and system to remove coke from a coker drum A method to remove coke from a coker drum is disclosed. The method includes the steps of impinging fluid from a fluid jet on the inside surface of the coker and then determining the vibration signal of the coker drum. The signal is then transformed to determine the ... | 05/03/2011 |
| 7931782 | Method for recovering a liquid medium and system for recover a liquid medium A method of recovering a liquid medium from a mixture containing the liquid medium, the method including: (a) blowing a first gas into the mixture containing the liquid medium to vaporize the liquid medium, in a first vaporizing means, thereby to form a second gas c... | 04/26/2011 |
| 7815775 | Optimized coke cutting method for decoking substantially free-flowing coke in delayed cokers A method for coke removal in delayed coker drums is provided. The method comprises the steps of draining from the drum of substantially free-flowing coke, performing a vibration signature analysis on the drum to identify whether and where any coke remains attached t... | 10/19/2010 |
| 7708864 | Method for refinery foulant deposit characterization The present invention is a method to identify a refinery solid foulant of unknown composition including the following steps: obtaining a solid foulant sample, removing trapped feed from the sample with a solvent to obtain an insoluble sample, scanning the insoluble ... | 05/04/2010 |
| 7645362 | Method for pretreating and improving coking coal quality for blast furnace coke Methods for pretreating and improving coking coal quality for producing blast-furnace coke by: (a) rapid-heating the coal charge in a fluidized-bed to a temperature range between not lower than 300° C. and not higher than the temperature at which the coal charge be... | 01/12/2010 |
| 7364791 | Developer carrying member and developing method by using thereof The present invention relates to a developer carrying member for carrying a developer having at least a substrate and a resin-coated layer formed on the surface of the substrate. The developer carrying member is the one which carries a one-component developer to vis... | 04/29/2008 |
| 7223511 | Developer carrying member and developing method by using thereof The present invention relates to a developer carrying member for carrying a developer having at least a substrate and a resin-coated layer formed on the surface of the substrate. The developer carrying member is the one which carries a one-component developer to vis... | 05/29/2007 |
| 7208570 | Method of refining tall oil The present invention relates to a method of refining crude tall oil. According to the method, the crude tall oil is fed into a column distiller, where it is separated into desired fractions. The conditions of the column distiller are adjusted on the basis of the co... | 04/24/2007 |
| 7128812 | Apparatus and method for determining the level in a coke drum A foam level in a delayed coking drum is detected by utilizing the varying density of the boiling mass in the coke drum which has larger bubbles and is less dense at the top and smaller bubbles and a higher density at the bottom. A plurality of radiation detectors a... | 10/31/2006 |
| 7122099 | Method and device for evacuating hot raw gases from coke ovens The invention relates to a method and a device for evacuating hot raw gases which occur in the oven chambers of a coke oven battery during coking. The oven gases are lead from the oven chambers into a hot gas collector. The pressure in the oven chambers is controlle... | 10/17/2006 |
| 7097743 | Method for operating a coke-oven battery A method is provided for operating a coke oven battery including many identical coking chambers, a raw gas receiver, and throttle devices arranged in the receiver for individually controlling the gas pressure in the chambers. Each throttle device includes an immersi... | 08/29/2006 |
| 7094321 | Device for controlling the gas pressure in a coke oven chamber A device for controlling the gas pressure in a coke oven chamber, has an immersion cup, to which water is supplied, and with an immersion pipe which is connected to the gas space of the coke oven chamber and terminates in the, immersion cup. The immersion cup has an... | 08/22/2006 |
| 6918999 | Device and method for sealing levelling door aperture of a coke oven chamber The invention relates to a device for sealing a leveling door aperture of a coke oven chamber when loading bulk coking coal. The device includes a housing and a leveling door aperture, a leveling arm, composed of at least side panels and cross spacers connecting the... | 07/19/2005 |
| 6758945 | Method and apparatus for quenching the coke drum vapor line in a coker A method and apparatus for quenching the coke drum vapor line from a coke drum to the main fractionator in a coker unit whereby the volume of quench liquid prevents the drum vapor line from plugging with carbon-based deposits. A differential pressure control techniq... | 07/06/2004 |
| 6746497 | Waste incineration disposal method A waste is dry-distilled in a gasification furnace and generated combustible gas is combusted in a combustion furnace. A temperature in the combustion furnace is set to be substantially constant at a first preset temperature or more. When the temperature in the comb... | 06/08/2004 |
| 6344361 | Method of detecting the presence of impurities, unit and method for vaporizing liquid, and double air-distillation column A film-type vaporizer in a vaporization enclosure, for example the upper column of a double air-distillation column, is associated with a measurement and analysis box where a polished surface and a spillway reconstruct the flow of liquid in the vaporizer ... | 02/05/2002 |
| 6168252 | Ink jet printer An ink jet printer has a printhead formed of a piezoelectric element having an electrical capacitance with a known temperature characteristic. A memory stores a reference temperature Tref and a reference capacitance Cref of the printhead measured at the r... | 01/02/2001 |
| 6139692 | Method of controlling the operating temperature and pressure of a coke oven The pressure in the coking chamber of a coke oven is held at about atmospheric pressure, and the temperatures at the opposite longitudinal ends of the combustion chamber are independently controlled. Fuel gas is supplied to hold the temperature at the opp... | 10/31/2000 |
| 6033528 | Process for making blast furnace coke A blast furnace coal is produced by rapidly heating a coal blend having 10 to 30% by weight of a non-slightly-caking coal having softening initiation temperature T with the balance including a caking coal having softening initiation temperature T0 | 03/07/2000 |
| 5968320 | Non-recovery coke oven gas combustion system A system for transporting and burning under negative pressure in a boiler a raw coke oven gas to produce steam energy. The system has the usual battery of coke ovens and corresponding ascension pipes connected to a collector main. Flushing liquor is spray... | 10/19/1999 |
| 5855742 | Decoking process and device A device for drilling a layer of coke within a reactor to effect the decoking of the reactor includes a decoking tool arranged at one end of a hose for conveying a decoking fluid to the tool. The decoking tool has a first part and a second part coaxial wi... | 01/05/1999 |
| 5795445 | Method of controlling the quench of coke in a coke drum A method of controlling the rate of quench of coke in a coke drum to reduce deterioration of the coke drum sidewall in which water is admitted into the coke drum filled with hot coke to cool the coke includes the steps of determining the stress imposed on... | 08/18/1998 |
| 5688376 | Method for the gas sealing manufacture of a door frame of a coke oven battery and such a door frame structure Method for the gas sealing manufacture of a door frame of a coke oven battery which battery comprises a refractory structure with an armor plate connected to it onto which the door frame is fitted characterized by the following steps: measuring the profil... | 11/18/1997 |
| 5609730 | Method of operating dry quenching apparatus for hot coke A dry quenching apparatus for hot coke is operated by collecting data on preceding operations. The heat balance is calculated based on the collected data to determine the heat content of the charged hot coke, and an optimal operating schedule is calculate... | 03/11/1997 |
| 5595633 | Coking process for a battery of coke ovens A method for operating a battery of coke ovens capable of accomplishing an increase in production and a decrease in the quantity of heat required for carbonization. The battery of cove ovens include a plurality of carbonization chambers to which a series ... | 01/21/1997 |
| 5443693 | Method of recovering components from coke oven gases using predictive techniques A method for recovering a component from gas that is produced by a coke oven battery. The total amount of gas that will be produced by the coke oven battery is predicted by determining a quantity of coal charged, and determining variations of a production... | 08/22/1995 |
| 5401364 | Process for treating noncaking, noncoking coal to form char with process derived gaseous fuel having a variably controllable calorific heating value According to this invention there is provided a process for the heat treatment of noncaking, noncoking coal with a process derived gaseous fuel having a variably controllable calorific heating value.... | 03/28/1995 |
| 5318671 | Method of operation of nonrecovery coke oven battery A method of controlling operation of a nonrecovery coke oven battery including a plurality of elongated coke ovens constructed in side-by-side relation with each oven having a separate system of sole flues beneath each end connected to the crown of the ov... | 06/07/1994 |
| 5224432 | Method for retorting organic matter A method of retorting organic matter including the steps of advancing the organic matter through a chamber in the absence of oxygen, sensing the temperature in the chamber at a plurality of locations along the length of the chamber, individually adjusting... | 07/06/1993 |
| 5132918 | Method for control of a distillation process A method for automated control of a petroleum distillation column in which signals representing temperatures, pressures and fluid flow rates for selected product streams withdrawn from the column are transmitted to a digital computer where, by means of a ... | 07/21/1992 |
| 4980028 | Method of controlling fuel for a coke oven A method fo controlling fuel for a coke oven by a programmed heating method in which the fuel supply rate is changed at least once during the coal carbonization process in the coke oven, wherein the improvement comprises conducting the substantial reducti... | 12/25/1990 |
| 4973386 | Passive acoustic power spectra to monitor and control processing A process for the detection and measurement of wall coke at a specific location in a fluid bed coker through the measurement of the vibrations of the external shell of the coker at the location.... | 11/27/1990 |
| 4941952 | Process for the treatment of waste material In the treatment of hydrocarbon-containing waste material, in particular plastic-containing waste material, by pyrolysis, gases containing hydrogen halide compounds which are formed are neutralized by the addition of basic additive material. Since the rea... | 07/17/1990 |
| 4877488 | Passive acoustic power spectra to monitor and control processing A process is disclosed for the detection and measurement of wall coke at a specific location in a fluid bed coker through the measurement of the vibrations of the external shell of the coker at that location.... | 10/31/1989 |
| 4851084 | Procedure for operating a pyrolysis process In a pyrolysis plant having a preliminary cooling stage and a final cooling stage, in the event of an operational malfunction of the preliminary cooling stage as indicated by temperature measurement of the pyrolysis gas cooled therein, the pyrolysis gas i... | 07/25/1989 |
| 4800165 | Method of detecting corrosion rate of member of steel material A method of detecting the rate of corrosion of an existing steel structure installed in a corrosive environment is disclosed. The method includes treating a measurement surface of the member so that an AC impedance of the measurement surface, when electro... | 01/24/1989 |
| 4725337 | Method for drying low rank coals A process is disclosed for removing a substantial portion of water and impurities from low rank coal and peat, whereby an improved coal or peat product (not found in nature) is obtained. The low rank coal and peat are subjected to a superheated gaseous me... | 02/16/1988 |
| 4706581 | Fossil fuel furnace reactor A fossil fuel furnace reactor is provided for simulating a continuous processing plant with a batch reactor. An internal reaction vessel contains a batch of shale oil, with the vessel having a relatively thin wall thickness for a heat transfer rate effect... | 11/17/1987 |
| 4701838 | Characterizing and handling multi-component substances A method of handling, as bulk material, a substance which is one member of a class of multi-component substances includes subjecting successive test samples of the substance to a series of measurements which provide multiple data points which are influenc... | 10/20/1987 |
| 4692216 | Method for controlling heat input into a coke oven Method of controlling heat input into a coke oven to obtain a desired temperature of the coke mass of the oven at the time of pushing comprising (1) determine the moisture content and heat of carbonization of a sample of coal scheduled for transfer into t... | 09/08/1987 |
