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HGT Hydraulic Gyratory Crusher

HGT Hydraulic Gyratory Crusher

HGT Gyratory Crusher is a new-type intelligent coarse crusher with big capacity and high efficiency. It integrates mechanical, hydraulic, electric, automated, and intelligent controlling technologies which grant it with advantages traditional crushing

European Type Jaw Crusher PEW

European Type Jaw Crusher PEW

Jaw crushers has stationary jaw crusher, portable jaw crusher and mobile jaw crusher (crawler jaw crusher). Jaw crusher (PEW Series) is not only able to be used together with mine-selecting and gravel processing equipments but also be used independen

Jaw Crusher PE

Jaw Crusher PE

Jaw crusher is driven by a motor, and the moving jaw moves up and down via eccentric shaft. The angle between fixed jaw and moving jaw becomes smaller when the moving jaw runs down, then the materials are crushed into pieces. It will become bigger whe

HPT Hydraulic Cone Crusher

HPT Hydraulic Cone Crusher

Base on the latest technology and decades of years’ producing experience, Our Company designed the HPT series cone crusher. It has excellent crushing efficiency and good hydraulic control system. Now the HPC series cone crusher has wide application

HST Hydraulic Cone Crusher

HST Hydraulic Cone Crusher

HST Single Cylinder Hydraulic Cone Crusher is a new high-efficiency cone crusher independently researched, developed and designed by SBM through summarizing over twenty years of experience and widely absorbing advanced American and German technologies

CI5X Series Impact Crusher

CI5X Series Impact Crusher

CI5X Impact Crusher breaks materials with impact force. When materials enter the working area of hammer, they may be crushed under the high-speed shock and then thrown onto the impact device above the rotor for another crushing. Next, materials bounce

VSI6X Series Vertical Crusher

VSI6X Series Vertical Crusher

Due to the increasing market demand for the scale, intensification, energy conservation, environment protection and high-quality machine-made sand, SBM, a Chinese professional sand maker manufacturer, further optimizes the structure and function of tr

VSI5X Vertical Shaft Impact Crusher

VSI5X Vertical Shaft Impact Crusher

VSI Crushers Working Principle Raw material falls down into feed hopper, and then enters rotor through central entrance hole. It is accelerated in high-speed rotor, and then is thrown out at speed of 60-75m/s. When hitting anvil, it is crushed. Final

VSI Vertical Shaft Impact Crusher

VSI Vertical Shaft Impact Crusher

VSI Series vertical shaft impact crusher is designed by reputed German expert of SBM and every index is in worlds leading standard. It incorporates three crushing types and it can be operated 720 hours continuously. Nowadays, VSI crusher has replaced

VUS aggregate optimization system

VUS aggregate optimization system

The VU system is a global most-advanced dry-process sand-making system. The system is constructed like a tower. Its fully-enclosed layout features high integration. It integrates the functions of high-efficiency sand making, particle shape optimizatio

MTW-Z European Trapezium Mill

MTW-Z European Trapezium Mill

MTW European Grinding Mill is innovatively designed through deep research on grinding mills and development experience. It absorbs the latest European powder grinding technology and concept, and combines the suggestions of 9158 customers on grinding m

5X Series Roller Grinding Mill

5X Series Roller Grinding Mill

Grinding roller of MB5X Pendulum Roller Grinding Mill l adopts diluted oil lubrication. It is a technology initiated domestically which is maintenance-free and easy to operate. Diluted oil lubrication is oil bath lubrication, more convenient than grea

MTW Trapezium Mill

MTW Trapezium Mill

MTW European Grinding Mill is innovatively designed through deep research on grinding mills and development experience. It absorbs the latest European powder grinding technology and concept, and combines the suggestions of 9158 customers on grinding m

LM Vertical Mill

LM Vertical Mill

LM Vertical Grinding Mill integrates crushing, drying, grinding, separating and transport. The structure is simple while the layout is compact. Its occupational area is about 50% of that of the ball-milling system. The LM grinding mill can also be arr

TGM Trapezium Mill

TGM Trapezium Mill

TGM Super Pressure Trapezium Mill The operation principle of main unit of Trapezium mill is that main unit runs with the central shaft that is driven by a gear box. The top of the shaft is connected with a quincunx stand on which a grinding roller is

coal liquefaction direct

Direct Coal Liquefaction an overview ScienceDirect Topics

Direct Coal Liquefaction (DCL) commonly refers to catalytic hydrogenation of coal in a recycled oil solvent at high pressures with a catalyst. While a range of process configurations have been proposed, the most common version involves at least two high pressure slurry reactors in a series using a dispersed iron-based catalyst and hydrogen supplied from a parallel gasification system. Typically, the liquefaction

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Coal Liquefaction an overview ScienceDirect Topics

The primary chemical reaction of direct coal liquefaction is hydrogenation of the coal to break the coal into smaller molecules and increase the hydrogen:carbon ratio. Addition of hydrogen also removes the heteroatoms nitrogen, sulfur, and oxygen by converting them to ammonia, hydrogen sulfide, and water, respectively. Some combination of iron, nickel, cobalt, and molybdenum catalysts can be used to

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Liquéfaction du charbon — Wikipédia

La liquéfaction du charbon désigne les procédés physico-chimiques qui permettent d'obtenir des hydrocarbures liquides à partir de charbon. Ces procédés, connus depuis le début du XXe siècle, connaissent au début du XXIe siècle un regain d'intérêt en raison de la différence de prix croissante entre le charbon et le pétrole. On utilise alors plus fréquemment l'abréviation CTL, soit en anglais Coal to Liquids

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Coal Liquefaction — Conversions — Student Energy

In direct liquefaction, coal is exposed directly to hydrogen at high temperatures (450C) and high pressures (14000-20000kPa) for approximately one hour in the presence of a solvent that breaks down the hydrocarbon structure. Catalysts are used to improve rates of conversion of coal from solid to liquid form. The resulting liquid coals have molecular structures that require further upgrading to produce

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10.6. Direct Liquefaction Processes netl.doe.gov

Direct coal liquefaction involves contacting coal directly with a catalyst at elevated temperatures and pressures with added hydrogen (H2), in the presence of a solvent to form a raw liquid product which is further refined into product liquid fuels.

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Coal liquefaction Energy Education

Coal liquefaction is a process in which coal is converted into liquid fuels or petrochemicals. There are several processes used to accomplish this task, the two most common being the "indirect route" and the "direct route". The indirect route is composed of 2 steps: First, coal is gasified with steam and oxygen to produce a synthesis gas (syngas), which is then cleaned to

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Coal liquefaction WikiMili, The Best Wikipedia Reader

16/06/2020· Shenhua, a Chinese coal mining company, decided in 2002 to build a direct liquefaction plant in Erdos, Inner Mongolia,with barrel capacity of 20 thousand barrels per day (3.2 × 10 ^ 3 m 3 /d) of liquid products including diesel oil, liquefied petroleum gas (LPG) and naphtha (petroleum ether). First tests were implemented at the end of 2008. A second and

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Chemicals from Direct Coal Liquefaction Chemical Reviews

Direct Coal Liquefaction with Fe3O4 Nanocatalysts Prepared by a Simple Solid-State Method. Energies 2017, 10 (7),886. DOI: 10.3390/en10070886. Wen Li, Zong-Qing Bai, Jin Bai, Xiao Li. Transformation and roles of inherent mineral matter in direct coal liquefaction: A mini-review. Fuel 2017, 197, 209-216. DOI: 10.1016/j.fuel.2017.02.024. Rohan Stanger, Quang Anh Tran,

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Direct Coal Liquefaction — Precision Valve Engineering

The process of direct coal liquefaction was developed in the 1920's in Germany. Until the mid 1950's the process was operated at several sites in Germany to derive liquid hydrocarbons from coal as a substitute to standard crude oils. In the 80's and 90's the Kohleoel-Anlage in Bottrop plant was operated for almost 20 years, of which the last years were in heavy oil upgrading

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Direct Coal Liquefaction Springer for Research &

This paper presents a brief state of the art review of direct coal liquefaction. The review includes important pilot scale processes available for the liquefaction an a brief description of the...

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Coal utilization Liquefaction Britannica

Direct liquefaction of coal can be achieved with and without catalysts (represented by R), using high pressures (200 to 700 atmospheres) and temperatures ranging between 425 and 480 °C (800 and 900 °F). In the indirect liquefaction process, coal is first gasified to produce synthesis gas and then converted to liquid fuels: The principal variables that affect the yield and

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Coal Liquefaction — Conversions — Student Energy

Direct liquefaction converts solid coal directly into liquid form with no intermediate step, which results in only the partial dismantling of the coal structure. Indirect liquefaction requires an intermediate gasification of the solid coal to form a synthesis gas, which is then converted to the liquid product. This process results in the complete dismantling of the coal structure. In direct

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10.6. Direct Liquefaction Processes netl.doe.gov

Reason for Discussion of Direct Liquefaction of Coal in Gasifipedia As the following discussion of Direct Coal Liquefaction (DCL) explains, the fundamental process approach of DCL does not involve gasification at all. Therefore it would seem to be entirely out of scope of Gasifipedia. However, the following considerations require that discussion of DCL be included:

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Recent Progress in the Direct Liquefaction of Coal Science

Interest in direct coal liquefaction steadily decreased during the 1980s as the price of crude oil dropped; there is now only one integrated coal liquefaction pilot plant active full time in the United States. The economics derived early in the decade established the price of transportation fuels from coal at $80 per barrel or higher. However, there have been dramatic improvements

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Study on Properties of the Blends with Direct Coal

This paper studies the properties of the blends composed of DCLR (direct coal liquefaction residue) and asphalt using two different processing methods, compares the regulation that the DCLR additive content and processing method take influence on the high-temperature properties, low-temperature properties and durability of the blends. It is found that the DCLR can improve

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