• Apparatus for oil shale retorting

    The two streams of shale, cold raw shale and hot burned shale, after mixing, are distributed from the distributor stage 10 as a uniform mixture into the pyrolyzer stage 14 where the shale flows downward by gravity. The pyrolyzer stage 14 provides sufficient residence time at a sufficient temperature, about 500° C., for the kerogen in the shale to decompose and produce shale oil, gas and char ...

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  • roller crusher for shale crushing

    roller crusher for shale crushing. Roll Crusher Manufacturer Design Williams Crusher. Use an IndustryLeading Roll Crusher on Your Next Job. The Williams Patent Crusher Roll Crushers are designed to crush friable materials such as coal, limestone, clay, mineral, and diatomaceous earth for the mining, recycling, and power industries.. Williams is an industryleading roll crusher manufacturer ...

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  • Twostage removal of sulfur dioxide from process gas using ...

    Twostage removal of sulfur dioxide from process gas using treated oil shale . United States Patent . Abstract: Sulfur dioxide is removed from a process gas by passing the process gas through a first fragmented permeable mass of particles containing treated oil shale and including alkaline earth metal oxides at a sufficient temperature to remove sulfur dioxide from the process gas. Gas ...

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  • Twostage oil shale retorting process and disposal of ...

    Twostage oil shale retorting process and disposal of spent oil shale ... According to that patent, oil shale is crushed to a particle size of less than 1/2inch and then retorted or stripped in a horizontal rotating kiln by heat transferred from solid heat transmitting ceramic balls. The retorted oil shale is combusted in a second horizontal rotating kiln for heating the ceramic balls ...

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  • Method and apparatus for recovering carbon products from ...

    United States Patent . Abstract: A method and apparatus for recovering and simultaneously partially refining hydrocarbon products such as liquid oil, oil vapor and combustible and noncombustible gases from oil shale, by subjecting the oil shale ore, in fragments between 5 and 10 cm, or larger, to microwave energy at frequencies between 300 MHz and 3000 MHz. The apparatus includes kiln ...

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  • Explore Shale. Marcellus Shale Development, Geology and Water.

    Stage 2 Fracturing. Shale is compressed and must be fractured to extract natural gas. Fracking fluid is sent into the casing under high pressure and out of the perfs into the rock. This causes the shale layers to crack. Stage 3 Production. The newly created cracks create a pathway for the gas to enter the casing. A plug is inserted to prevent fracturing fluids from entering this zone while ...

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  • hydraulic Fracturing: History of AN ENDURING TECHNOLOGY

    A patent was issued in 1949, with an exclusive license granted to the Halliburton Oil Well Cementing Company (Howco) to pump the new Hydrafrac process. Howco performed the fi rst two commercial fracturing treatments— one, costing USD 900, in Stephens County, Oklahoma, and the other, costing USD 1,000, in Archer County, Texas—on March 17, 1949, using lease crude oil or a blend of crude .

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  • Patent basics | USPTO

    Patent Center. Try the beta replacement for EFSWeb, Private PAIR and Public PAIR. Check appliion status. Check patent appliion status with public PAIR and private PAIR. Fees and payment. Pay maintenance fees and learn more about filing fees and other payments. Patent Trial Appeal Board. Resolve disputes regarding patents with PTAB ...

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  • Appliion Note AN1162

    Figure 3 The bode plot of the power stage of the buck converter 2. Loop Gain of the system The loop gain of system is defined as the product of transfer functions along the closed control loop. Using Figure 2, the loop gain is defined as: H(s) G(s) k G (s) V H(s) k M(s ) P osc 1 1 1 (5) Where 1 k represents the gain of the resistor divider which is used in the feedback loop when Vout Vref ...

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  • Patent process overview | USPTO

    Utility Patent. Utility patents may be granted to anyone who invents or discovers any new and useful process, machine, article of manufacture, or compositions of matters, or any new useful improvement thereof. By far, most patent appliions filed at the USPTO are utility appliions. Applying for a Utility Patent; Maintaining your Utility Patent

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  • Sand And Gravel Processing

    Figure is a flow diagram for industrial sand and gravel processing. The mined rock is transported to the processing site and stockpiled. The material then is crushed. Depending on the degree of cementation, several stages of crushing may be required to achieve the desired size reduction. Gyratory crushers, jaw crushers, roll crushers ...

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  • Roll Crushers | McLanahan

    Triple Roll Crushers. Triple Roll Crushers are ideal for producers who want to accomplish two stages of reduction in one pass. They can be used in coal, salt, coke, glass, and trona operations, among others. Triple Roll Crushers combine a Single Roll Crusher with a Double Roll Crusher to form a crusher that is capable of achieving a 6:1 reduction ratio in the primary stage and a 4:1 reduction ...

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  • patent limestone crusher

    The three types of crushers most commonly used for crushing CDW materials are the jaw crusher, the impact crusher and the gyratory crusher (Figure ).A jaw crusher consists of two plates, with one oscillating back and forth against the other at a fixed angle (Figure (a)) and it is the most widely used in primary crushing stages (Behera et al., 2014).

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  • US Patent Appliion for DENSEMEDIUM SEPARATION PROCESS ...

     · Embodiments of the present disclosure provide a pressurized twoproduct densemedium separation process for oil shale, and belongs to the field of oil shale industry, in particular to the processing and utilization of oil shale. This process includes: prescreening a raw oil shale ore through a 25 mm screen; crushing an oversize product, mixing with an undersize product, and separating by a ...

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  • US Patent for Petroleum products from oil shale Patent ...

     · The oil shale is processed at a crusher into oil shale granules of about inches in diameter. These are fed into kilns of the system. There moisture (H 2 O) is first removed. Then in successive stages, useful hydrocarbons in the form of oil vapors are extracted by pyrolysis. Spent shale granules are transported or stored, possibly within ...

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  • Hydraulic Fracturing

     · 2. Scope and Objective • This lecture reviews hydraulic fracturing and alternative fracturing technologies, by searching the open literature, patent databases and commercial websites. • For each identified technique, an overview is given. • The technique is then briefly explained, and its rationale (reasons for use) is identified.

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  • Rolls Crusher for Sale

    Roll Crusher Patent. ROLLS CRUSHER FOR SALE . Our production size industrial roll crushers will crush up to 140 TPH depending on the model you select. Irrespective of the part which rolls may play in the future in their relation to the two extreme limits of sizereduction, there is no doubt that they have achieved for themselves a secure position in crushing products of intermediate sizes ...

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  • Review of oil shale insitu conversion technology ...

     · 1. Introduction. Oil shale is a highly ashrich sedimentary rock enriched with combustible organic matter, .The majority of the organic matter in oil shale is kerogen,, which is insoluble in common organic solvents, .The kerogen component is about 3% to 15% in oil shale, and consist of complex organic compound in high molecular weight,, that is rich in aliphatic hydrocarbon structure .

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  • Patent Analysis of Shale Gas Technology in China and ...

     · However, commercial exploitation of shale gas in China is in the very early stages, in sharp contrast to that in the United States. Patents related to shale gas exploitation are analyzed by using data mining and patent maps. The findings show that shale gas exploitation involves complex technologies that technological accumulation is a longterm process. Despite decades of rapid growth ...

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  • Standard PID Symbols Legend | Industry ...

    Crusher Coarse Crusher Medium Crushers Fine Crushers Various Crushers Hammer Crusher Impact Crusher Jaw Crusher Roller Crusher Cone Crusher Vibration Crusher Hammer Crusher Centrifugal Pump Centrifugal Compressor Centrifuge Screw Centrifuge, Solid Shell Centrifuge, Pusher Centrifuge Screw, Perforated Shell Centrifuge, Separator disc Centrifugal Blower Centrifugal Pump Centrifugal Pump 2 .

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  • Hammer Mill Operating Principle

     · Hammer Mill Crusher. The Dixie (NonClog) Hammer Mill Crusher differs from all other hammermills in that its breaker plate, instead of being stationary, is a continuously moving belt of manganese steel links. The feed thrown into the hopper is carried by a positive mechanical feed to the hammerpoints and then on through the grates.

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