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Felix Hoffmann, a German chemist, was searching for something to relieve his father's arthritis. In doing so, he "rediscovered" acetylsalicylic acid and in 1900, patented a stable process for developing it. Hence, we have aspirin.
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| Number | Title | Issue Date |
| 8182672 | Process for preparing lube basestocks having superior low temperature properties at high VI A process for preparing basestocks having superior low temperature properties at high viscosity index (VI). More particularly, a waxy feedstock is contacted with a first dewaxing catalyst having a refined constraint index (CI*) 2.0 or less followed by contacting wit... | 05/22/2012 |
| 8048290 | Process for producing branched hydrocarbons The invention relates to a process for producing base oils, comprisings the steps where feedstock selected from ketones, aldehydes, alcohols, carboxylic acids, esters of carboxylic acids and anhydrides of carboxylic acids, alpha olefins, metal salts of carboxylic ac... | 11/01/2011 |
| 7981272 | Process for reforming a hydrocarbon stream in a unit having fixed and moving bed reaction zones A process for reforming a hydrocarbon stream in a reforming unit can include passing a gas including a halogen-containing material from a product separation zone through an adsorption zone to remove at least some of the halogen-containing material before the gas ent... | 07/19/2011 |
| 7967973 | Process for producing a hydrocarbon component The invention relates to a process for producing a new type of high-quality hydrocarbon base oil of biological origin. The process of the invention comprises ketonisation, hydrodeoxygenation, and isomerization steps. Fatty acids and/or fatty acid esters based on a b... | 06/28/2011 |
| 7850841 | Process for producing a branched hydrocarbon base oil from a feedstock containing aldehyde and/or ketone The invention relates to a process for producing high-quality hydrocarbon base oil particularly of biological origin. The process of the invention comprises aldol condensation, hydrodeoxygenation, and isomerization steps. Aldehydes and/or ketones, preferably of biol... | 12/14/2010 |
| 7776207 | Process to produce middle distillate A process for producing alkyl aromatic middle distillate fuels is described. The process includes (a) catalytically converting paraffinic naphtha to a composition containing benzene and olefins; (b) processing the olefin/benzene composition in an aromatic alkylation... | 08/17/2010 |
| 7419583 | Process for catalytically reforming a hydrocarbonaceous feedstock A process for catalytically reforming a gasoline boiling range hydrocarbonaceous feedstock in the presence of hydrogen involving the following steps: (a) reforming at least 5 vol % and at most 50 vol % of the feedstock in a first r... | 09/02/2008 |
| 7312173 | Regeneration method with efficient oxygen utilization This invention relates to regeneration of coked catalyst by combustion so that the catalyst can be reused in a hydrocarbon conversion reaction. The completion of coke burn is generally measured with a combination of temperature or change in oxygen concentration. Dro... | 12/25/2007 |
| 7300642 | Process for the production of ammonia and Fischer-Tropsch liquids A gasification plant for producing ammonia, Fischer-Tropsch fuels, and electrical power from carbon-bearing feedstocks. ... | 11/27/2007 |
| 7291311 | Process for controlling a moving bed combustion zone and its use Process for controlling the combustion zone of a fluidized bed process comprising a regeneration zone and a reaction zone, the catalyst circulating between these two zones, and the regeneration zone comprising a combustion stage of the coke deposited on the catalyst... | 11/06/2007 |
| 7285205 | Process of regenerative reforming In a regenerative reforming facility using a series of moving beds, a direct supply of regenerated catalyst, optionally reduced is passed into at least two of the reactors of the series. Spent catalysts from different reactors are passed into a common mixing apparat... | 10/23/2007 |
| 7273893 | Process for converting carbon dioxide to oxygenates A catalyst and process for converting carbon dioxide into oxygenates. The catalyst comprises copper, zinc, aluminum, gallium, and a solid acid. ... | 09/25/2007 |
| 7220505 | Autothermal reformer-reforming exchanger arrangement for hydrogen production Low-energy, low-capital hydrogen production is disclosed. A reforming exchanger 14 is placed in parallel with an autothermal reformer (ATR) 10 to which are supplied a preheated steam-hydrocarbon mixture. An air-steam mixture is supplied to the burner/m... | 05/22/2007 |
| 7217303 | Pressure swing reforming for fuel cell systems The present invention provides an improvement in the process of producing hydrogen from hydrocarbon-containing streams. A cyclic reforming process, referred to as pressure swing reforming, provides an efficient means for producing a hydrogen containing synthesis gas... | 05/15/2007 |
| 7150821 | High purity olefinic naphthas for the production of ethylene and propylene The present invention relates to an olefinic naphtha and a process for producing lower olefins from this naphtha. In the process of the present invention for producing lower olefins, preferably ethylene, at least a portion of a hydrocarbon asset is converted to synt... | 12/19/2006 |
| 7133784 | Process and method for chemical manufacturing using transformation of on-line instrumentation data A method for providing improved estimates of properties of a chemical manufacturing process is disclosed. The method regesses process variables with scores or other gains obtained from the mathematical transformation of data obtained from an on-line analyzer. Chemic... | 11/07/2006 |
| 7067052 | Process for the production of reformate having reduced ethylbenzene content A process for reforming a hydrocarbon feed containing precursors of ethylbenzene, e.g., C8 isoalkane and/or C8 isoalkene precursors of ethylbenzene, that results in the formation of reduced amounts of ethylbenzene. The process is carried out in... | 06/27/2006 |
| 7045477 | Process for continuously regenerating catalyst particles A process for continuously regenerating catalyst particles comprising: passing deactivated catalyst particles downwards in sequence through the first coke-burning zone, second coke-burning zone, oxychlorination zone, and calcination zone in the regenerator, wherein ... | 05/16/2006 |
| 6936665 | Integrated advanced chemical process control The application discloses a system for controlling a chemical manufacturing process having at least one piece of process limiting equipment in addition to a reactor. The system employs one or more multivariable predictive optimizer controllers for optimizing control... | 08/30/2005 |
| 6890423 | Distillate fuel blends from Fischer Tropsch products with improved seal swell properties The invention provides distillate fuel blend components with improved seal swell and lubricity properties obtained from Fischer Tropsch products. The blends contain a highly paraffinic distillate fuel component and distillate-boiling alkylcycloparaffins and/or disti... | 05/10/2005 |
| 6875339 | Octane improvement of a hydrocarbon stream The invention relates to methods for improving the octane number of a synthetic naphtha stream and optionally for producing olefins and/or solvents. In one embodiment, the method comprises aromatizing at least a portion of a synthetic naphtha stream to produce an ar... | 04/05/2005 |
| 6875338 | Process for endothermic conversion of hydrocarbons, its uses, and a unit for carrying out the process The invention concerns a process for converting hydrocarbons using at least one globally endothermic chemical reaction, in which a hydrocarbon feed successively traverses at least two reaction zones each containing at least one solid catalyst and comprising between ... | 04/05/2005 |
| 6797153 | Catalyst for hydrocracking of heavy oils and method of hydrocracking heavy oils A catalyst for the hydrocracking of heavy oils contains iron and active carbon having an MCH conversion rate of 40-80%, a specific surface area of 600-1000 m2/g of, a pore volume of 0.5 to 1.4 cm3/g, 2-50 nanometers' mesopore volume of not less... | 09/28/2004 |
| 6740228 | Process for reforming petroleum hydrocarbon stocks Processes for reforming, and in particular aromatising, hydrocarbons from a petroleum source may be carried out by contacting the hydrocarbons with a catalyst of a zeolite KL impregnated with a metal promotor such as platinum, in which the zeolite crystals are of ho... | 05/25/2004 |
| 6709569 | Methods for pre-conditioning fischer-tropsch light products preceding upgrading Embodiments of the present invention are directed to methods for hydroprocessing Fischer-Tropsch products. The embodiments in particular are related to integrated methods for producing liquid fuels from a hydrocarbon stream provided by a Fischer-Tropsch synthesis pr... | 03/23/2004 |
| 6583186 | Method for upgrading Fischer-Tropsch wax using split-feed hydrocracking/hydrotreating The present invention is directed to a method for hydroprocessing Fischer-Tropsch products. The invention in particular relates to an integrated method for producing liquid fuels from a hydrocarbon stream provided by Fischer-Tropsch synthesis. The method ... | 06/24/2003 |
| 6458266 | Catalytic reforming process with inhibition of catalyst deactivation A substantially water-free hydrocarbon feed is charged to a multiple-reactor reformer system being operated under reforming conditions and comprising at least two reformer reactors serially connected in fluid-flow communication and each containing a refor... | 10/01/2002 |
| 6398946 | Process for making a lube base stock from a lower molecular weight feedstock A process for making a lube base stock wherein a highly paraffinic feedstock (with boiling points within the range of from 258° to 1100° F.) is dehydrogenated to produce an olefinic feedstock, which is oligomerized to produce an oligomerized product, wh... | 06/04/2002 |
| 6284128 | Reforming with selective reformate olefin saturation A process combination is disclosed to selectively upgrade hydrocarbons in a manner to essentially eliminate olefins in product from the combination. Preferably the hydrocarbons comprise naphtha which is reformed to upgrade its octane number and/or to prod... | 09/04/2001 |
| 6281398 | Process for the production of high octane number gasolines A process is disclosed for improving the yield in the production of high octane gasoline after naphtha reforming by utilizing a transalkylation step to upgrade the heavy and light fractions coming from the reforming step.... | 08/28/2001 |
| 6280609 | Process and apparatus for controlling reaction temperatures A process and apparatus for contacting reactants with a particulate catalyst while indirectly contacting the reactants with a heat exchange medium performs heat exchange in a first reaction zone and moves catalyst, at least intermittently, through the sec... | 08/28/2001 |
| 6190534 | Naphtha upgrading by combined olefin forming and aromatization A process combination is disclosed to selectively upgrade naphtha to obtain a component for blending into gasoline. A naphtha feedstock is subjected to formation of olefins from paraffins using a nonacidic catalyst followed by aromatization of the resulti... | 02/20/2001 |
| 6177002 | Catalytic reforming process with multiple zones A hydrocarbon feedstock is catalytically reformed in a sequence comprising a first bifunctional-catalyst reforming zone, a zeolitic-reforming zone containing a catalyst comprising a platinum-group metal and a nonacidic zeolite, and a terminal bifunctional... | 01/23/2001 |
| 6143166 | Process for production of aromatics in parallel reformers with an improved catalyst life and reduced complexity This process relates to reforming a full-boiling range hydrocarbon feed in two parallel stages while maximizing the catalyst life of the heavy cut reformer and/or reducing the complexity of the plant by preferentially sending the higher purity Aromax.RTM.... | 11/07/2000 |
| 6106696 | Moving bed reforming process without heating between the combined feed exchanger and the lead reactor This invention is a reforming process that employs at least two moving bed reaction zones. One of the reaction zones, called the lead reaction zone, passes catalyst particles and a hydrocarbon-containing effluent to the other reaction zone, which operates... | 08/22/2000 |
| 6036845 | Modified riser-reactor reforming process with prereactor A catalytic reforming process comprises a prereactor which provides an intermediate stream to a riser reactor with multiple catalyst injection points to obtain high aromatics yields from a naphtha feedstock. Product from the riser reactor typically is dis... | 03/14/2000 |
| 5985131 | Hydroprocessing in a countercurrent reaction vessel A process for upgrading a liquid petroleum or chemical stream wherein said stream flows countercurrent to the flow of a treat gas, such as a hydrogen-containing gas, in at least one reaction zone. The reaction vessel used in the practice of the present in... | 11/16/1999 |
| 5958217 | Two-stage reforming process that enhances para-xylene yield and minimizes ethylbenzene production A hydrocarbon feed is reformed to enhance para-xylene yield and to minimize ethylbenzene production. The hydrocarbon feed is subjected to catalytic aromatization at elevated temperatures in the presence of hydrogen, using a non-acidic catalyst having at l... | 09/28/1999 |
| 5958216 | Catalytic reforming process with multiple zones A hydrocarbon feedstock is catalytically reformed in a sequence comprising a first bifunctional-catalyst reforming zone, a zeolitic-reforming zone containing a catalyst comprising a platinum-group metal and a nonacidic zeolite, and a terminal bifunctional... | 09/28/1999 |
| 5935415 | Continuous catalytic reforming process with dual zones A hydrocarbon feedstock is catalytically reformed in a sequence comprising a continuous-reforming zone, consisting essentially of a moving-bed catalytic reforming zone and continuous regeneration of catalyst particles, and a zeolitic-reforming zone contai... | 08/10/1999 |
