Did You Know...
...that the Eveready Battery began as an invention called the "electric flowerpot," which was a tube with a battery and light bulb inside? The idea was to fasten this gizmo to the side of a flowerpot so it would illuminate the flowers from the bottom. The idea died on the vine and the businessman who licensed the flower pot, Conrad Huber, was left with a pile of useless tubes -- until he found a way to market them as batteries to light the world!
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| Number | Title | Issue Date |
| 5997728 | Catalyst system for maximizing light olefin yields in FCC A process for catalytically cracking a heavy feed in an FCC unit, with large amounts of shape selective cracking additive is disclosed. The catalyst inventory preferably contains at least 10 wt % additive, of 12-40% ZSM-5 on an amorphous support, equivale... | 12/07/1999 |
| 5993643 | Process for naphtha hydrocracking There is provided a hydrocracking process using a catalyst comprising a hydrogenation/dehydrogenation component, such as a noble metal, and an acidic solid component comprising a Group IVB metal oxide modified with an oxyanion of a Group VIB metal. An exa... | 11/30/1999 |
| 5993642 | Hydrocarbon conversion process using a zeolite bound zeolite catalyst There is provided a process for converting hydrocarbons which utilizes a zeolite bound zeolite catalyst that has enhanced performance when utilized in hydrocarbon conversion processes, e.g., catalytic cracking, alkylation, disproportionation of toluene, i... | 11/30/1999 |
| 5990037 | Method of treating spontaneously combustible catalysts Self-heating characteristics of a spontaneously combustible catalyst are reduced by treating spontaneously combustible catalysts with oxygen-containing hydrocarbons having at least 12 carbon atoms. The treatment is particularly suitable for reducing the s... | 11/23/1999 |
| 5985133 | Control of particle size distribution in an FCC unit Circulating equilibrium catalyst (ECAT) in a fluidized catalytic cracking (FCC) is gently attrited in an internal or closely coupled attriter to produce fines and attrited catalyst which is recycled to the FCC unit for fines removal. Average particle size... | 11/16/1999 |
| 5985134 | Startup of magnetic separation process in an FCC unit A startup method for a fluidized catalytic cracking (FCC) unit operating with a magnetic catalyst separation means is disclosed. Magnetic strength, or separation severity, is maintained or increased until most of the catalyst has passed through the magnet... | 11/16/1999 |
| 5979799 | Feed nozzle A feed nozzle for introducing steam and a heavy petroleum hydrocarbon into a reactor, including a nozzle body having a cylindrical inner steam conduit; and having a annular outer heavy petroleum hydrocarbon conduit, a first nozzle tip fixedly attached to ... | 11/09/1999 |
| 5972208 | FCC metals passivation additives applied to catalyst A process and apparatus for incorporating additives into a circulating inventory of equilibrium catalyst in a fluid catalyst cracking (FCC) unit are disclosed. Hot regenerated catalyst is removed from the FCC regenerator, cooled, optionally subjected to m... | 10/26/1999 |
| 5972203 | Hydrocarbon conversion catalyst and its use There is provided catalysts and conversion processes for converting hydrocarbons using the catalysts. The catalysts comprises a first alumino-phosphospho-molecular sieves and a binder comprising a second alumino-phopho-molecular sieves. Exemplary conversi... | 10/26/1999 |
| 5968342 | Zeolite catalyst and method of converting hydrocarbons using the same The present invention provides a catalyst to convert hydrocarbons, which comprises a zeolite containing substantially no proton and having an intermediate pore diameter, a molar ratio of SiO2 to Al2 O3 of at least 20 and o... | 10/19/1999 |
| 5965012 | FCC process with short primary contacting and controlled secondary contacting An FCC process combines ultra short catalyst and feed contacting with the blending of spent and regenerated catalyst in a disengaging vessel that recovers a primary product and passes the separated catalyst to a riser for controlled cracking of the adsorb... | 10/12/1999 |
| 5965474 | FCC metal traps based on ultra large pore crystalline material A composition for passivating metal contaminants in catalytic cracking of hydrocarbons includes a non-layered, ultra-large pore crystalline material with at least one peak at a position greater than about 18 Angstrom Units d-spacing with a relative intens... | 10/12/1999 |
| 5958222 | Standpipe distributor for short time contact of hydrocarbon compounds with particles An arrangement for the controlled production of an essentially linear array of hydrocarbon feed injection jets reduces required clearances and elevation while facilitating modification of the contacting locating a feed distributor containing a linear arra... | 09/28/1999 |
| 5958219 | Metals passivation by magnetic treatment to permit higher metals levels on FCC catalyst A process for metals passivation of metals-contaminated equilibrium catalyst (ECat) used in a fluidized catalytic cracking (FCC) process is disclosed. Repeated treatment of a slip stream of ECat in a high-strength magnetic field, preferably a magnetic cat... | 09/28/1999 |
| 5954942 | Catalytic cracking with delayed quench A process for thermally and catalytically upgrading a heavy feed in a single riser reactor FCC unit is disclosed. A heavy feed is cracked in the base of the riser at higher than normal cracking temperatures for at least 1.0 seconds of vapor residence time... | 09/21/1999 |
| 5951850 | Process for fluid catalytic cracking of heavy fraction oil A heavy fraction oil is catalytically cracked by contacting the oil with a catalyst containing an ultrastable Y-type zeolite, in a fluid catalytic cracking apparatus having a regenerating zone, a reaction zone, a separation zone and a stripping zone and u... | 09/14/1999 |
| 5952539 | Dual process for obtaining olefins A process for producing normally gaseous olefins from two different process units sharing common downstream quench and fractionation facilities, wherein one of the process units is a short contact time mechanically fluidized vaporization unit for processi... | 09/14/1999 |
| 5948241 | Orifice plate feed nozzle and atomization process A nozzle, and hydrocarbon conversion process using the nozzle for atomizing heavy feed to conversion zone, are disclosed. A liquid feed stream is atomized by radial out-to-in impingement of atomizing vapor, discharged onto an imperforate central region of... | 09/07/1999 |
| 5928496 | Hydrotalcite sulfer oxide sorption Hydrotalcite-like materials are stable in the crystalline oxide structure and essentially reversible in anion exchange. A novel process of sulfur oxide sorption is provided utilizing these hydrotalcite materials as contact solids. Large crystalline sheet ... | 07/27/1999 |
| 5910240 | FCC unit catalyst stripper An improved stripper section design is provided for use in fluid catalytic cracking (FCC) units. The stripper section contains means for imparting rotational movement to the FCC cracking catalyst as it traverses the stripping section. In one embodiment th... | 06/08/1999 |
| 5908804 | Reduction of emissions from FCC regenerators Coke is burned in the regenerator vessel of an FCC complex with a combustion medium consisting of a diluent gas, such as air, enriched with oxygen, The regenerator is operated in partial combustion mode and excess oxygen is introduced into the combustion ... | 06/01/1999 |
| 5904837 | Process for fluid catalytic cracking of oils A process for the fluid catalytic cracking of oils, wherein an oil is brought into contact with catalyst particles using a fluid catalytic cracking reactor under the following conditions: a) a reaction zone outlet temperature of 580 to 630° C., catalyst/... | 05/18/1999 |
| 5888378 | Catalytic cracking process A process for catalytic cracking of a hydrocarbon feedstock feeds to produce an enhanced yield of C3 to C5 olefins comprises contacting the feedstock with a catalyst composition comprising a large pore molecular sieve having a pore s... | 03/30/1999 |
| 5868922 | Analyzer system for strippable hydrocarbon on FCC catalyst A FCC process in which spent catalyst is stripped of hydrocarbon in a stripping zone prior to entering the regenerator. In order to maximize the amount of strippable hydrocarbon removed in the stripping zone with minimal use of stripping gas, a sample of ... | 02/09/1999 |
| 5868923 | Hydroconversion process An improved ebullated bed hydroconversion process is disclosed that utilizes a bimodal heterogeneous catalyst and a metal containing oil-miscible-catalysts compound to achieve a reduction in sediment, an increase in conversion, a reduction in the energy u... | 02/09/1999 |
| 5863417 | Method for analyzing for strippable hydrocarbon on FCC catalyst A FCC process in which spent catalyst is stripped of hydrocarbon in a stripping zone prior to entering the regenerator. In order to maximize the amount of strippable hydrocarbon removed in the stripping zone, a sample of spent catalyst is removed prior to... | 01/26/1999 |
| 5858207 | FCC process with combined regenerator stripper and catalyst blending An FCC arrangement uses a regenerator stripper vessel for removing CO and light hydrocarbons upstream of the regeneration zone that can operate with backmix addition of regenerated catalyst directly from the regeneration zone. The regenerator stripping ve... | 01/12/1999 |
| 5858206 | Process for improved water wash in FCC gas concentration units Wash water is used to remove impurities such as hydrogen sulfide, ammonia, and hydrogen cyanide from light hydrocarbons and gases derived from refinery fluid catalytic cracking operations. The present invention is a process of low pressure recirculation o... | 01/12/1999 |
| 5853568 | Fluid cat cracking heavy using stripped catalyst for feed preheat and regenerator temperature control A fluid cat cracking process for catalytically cracking a feed containing vanadium into lower boiling products, includes a cat cracker and a regenerator, with the feed entering the catalytic cracking zone preheated by indirect heat exchange with spent, st... | 12/29/1998 |
| 5851380 | Process and apparatus for fluidized catalytic cracking of a hydrocarbon feed An improved apparatus and method for the fluidized catalytic cracking (FCC) of hydrocarbons. Turbulence generation means disposed on the internal surface of an FCC riser-reactor are utilized to provide for a more uniform catalyst flow pattern within the r... | 12/22/1998 |
| 5846400 | Methods of using zeolite SSZ-42 The present invention relates to new crystalline zeolite SSZ-42 prepared by processes for preparing crystalline molecular sieves, particularly large pore zeolites, using an organic templating agent selected from the group consisting of N-benzyl-1,4-diazab... | 12/08/1998 |
| 5846402 | Process for catalytic cracking of petroleum based feed stocks A process for selective catalytic cracking of a petroleum-based feedstock to produce a product having a high yield of liquified petroleum gas (LPG) and light olefins having 3 to 4 carbons includes providing a fluidized bed reactor which is a high velocity... | 12/08/1998 |
| 5846403 | Recracking of cat naphtha for maximizing light olefins yields A process for increasing the yield of C3 and C4 olefins by injecting light cat naphtha together with steam into an upstream reaction zone of a FCC riser reactor. The products of the upstream reaction zone are conducted to a downstrea... | 12/08/1998 |
| 5833840 | Hydrocarbon conversion process using zeolite Beta catalyst A catalyst composition which comprises a crystalline metallosilicate having the structure of zeolite Beta, phosphorus and a matrix that is substantially free of crystalline aluminum phosphate which has improved resistance to steam deactivation at which ha... | 11/10/1998 |
| 5830346 | FCC regenerator in partial CO burn with downstream air addition Oxides of nitrogen (NOx) emissions from an FCC regenerator are reduced by operating the regenerator in partial CO burn mode to produce flue gas with more CO than O2 and with NOx precursors. This flue gas is then enriched w... | 11/03/1998 |
| 5817229 | Catalytic hydrocarbon upgrading process requiring no external hydrogen supply A hydrocarbon feedstock is brought into contact with activated carbon at a temperature of about 300° to about 650° C. and a pressure of about 0-1000 psig in the absence of added hydrogen to reduce the content of aromatic, sulfur and nitrogen compounds c... | 10/06/1998 |
| 5814208 | Hydrocarbon catalytic cracking process Hydrocarbon fluid catalytic cracking (FCC) plants are debottlenecked by subjecting part or all of the wet gas stream leaving the main fractionator overhead receiver to pressure swing adsorption to remove methane and hydrogen from this gas stream prior to ... | 09/29/1998 |
| 5807474 | Process for the preparation of catalysts and for cracking mineral oil fractions The invention relates to a process for the preparation of catalysts or catalyst additives by kneading and/or grinding, spray-drying and heat-treating a suspension containing a catalytically active component as well as aluminum hydroxide and/or one or more... | 09/15/1998 |
| 5800697 | FCC process with dual function catalyst cooling An FCC reactor and regenerator arrangement provides substantially independent control of temperature on the reactor side and regenerator side of the process. The arrangement withdraws cooled regenerated catalyst for transfer to a reactor riser and cooled ... | 09/01/1998 |
| 5794857 | Feed nozzle A feed nozzle for introducing steam and a heavy petroleum hydrocarbon into a reactor, including a nozzle body having a cylindrical inner steam conduit; and having an annular outer heavy petroleum hydrocarbon conduit, a first nozzle tip fixedly attached to... | 08/18/1998 |
