coal liquefaction process

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US3846275A

1 a process for the liquefaction of coal which comprises contacting the coal, at a temperature of from about 150:c to about 375*c and a pressure of from about 10 to about 300 atmospheres for a contact time corresponding to form 1 to 600 minutes or a liquid hourly spaced velocity of about 016 to about 10, with from about 100 wt percent to about 1,000 wt...

Direct Coal Liquefaction

A two-stage direct liquefaction process is designed to give distillate products via two reactor stages in seri The primary function of the first stage is coal dissolution and is operated either without a catalyst or with only a low-activity disposable catalyst The heavy coal liquids produced in this way are hydrotreated in the second stage ....

Liquefaction

The melting point (sometimes called liquefaction point) is the temperature and pressure at which a solid becomes a liqu In commercial and industrial situations, the process of condensing a gas to liquid is sometimes referred to as liquefaction of gas Coal...

Coal Liquefaction Market

The coal liquefaction market also has certain restraints These include environmental pollution if coal is burned in the atmosphere Coal liquefaction may cause health problems and optimum air quality issues if handled inappropriately Risk associated with soil and water contamination in the process of coal liquefaction is high...

Coal liquefaction (research)

Coal liquefaction allows the player to turn excess coal into oil processing products...

Coal to liquids Process

Jan 08, 2013· Direct liquefaction and indirect liquefaction are the two different methods available, where the indirect one, gasifies the coal to syngas and produces needed liquid hydrocarbon fuels through ....

Coal Liquefaction

(thats a bit over 1,5 blue belts) if you were to produce this purely from coal liquefaction you would consume about 2 240 coal per second (Thats 56 blue belts) and of course you would need some more since you need to make steam for the process and you also need some sulfuric acid for batteries and processing units...

Coal Liquefaction

Abstract The article contains sections titled: 1 Introduction 11 Commercial Development 12 Historical Background 2 Indirect Coal Liquefaction 21 Preparation of Synthesis Gas 211 Coal Gas....

Coal liquefaction

Coal liquefaction is a process of converting coal into liquid hydrocarbons: liquid fuels and petrochemicals This process is often known as Coal to X, where X can be many different hydrocarbon-based products However, the most common process chain is Coal to Liquid Fuels (CTL)...

Coal liquefaction

Liquefaction Liquefaction is the process of converting solid coal into liquid fuels The main difference between naturally occurring petroleum fuels and coal is the deficiency of hydrogen in the latter: coal contains only about half the amount found in petroleum Therefore, conversion of coal into liquid fuels involves the addition of hydrogen...

Coal Liquefaction Case Study

SchuF Coal Liq & Gas Valves 74/71/42 Let down, solid transport and isolation technology Direct Coal Liquefaction 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...

Coal liquefaction

Coal liquefaction is a process of converting coal into liquid hydrocarbons: liquid fuels and petrochemicalsThe conversion industry is commonly referred to as "coal conversion" or "Coal To X" "Coal to Liquid Fuels" is commonly called "CTL" or "coal liquefaction", although "liquefaction" is generally used for a non-chemical process of becoming liqu...

Oil processing

Advanced oil processing and coal liquefaction produce multiple fluids: heavy oil, light oil and petroleum gas The refinery will stop production of all products if one product output is full, so it should be ensured that the products are transported out of the refinery; any products that cannot be used should be (temporarily) stored in a ....

Coal liquefaction

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 Liquefaction

Jan 09, 2006· In what is called the Bergius process for direct coal liquefaction, the coal is treated with hydrogen under pressure (>30 MPa) at 450 °C in the presence of a solvent and an iron oxide catalyst ....

Coal liquefaction process

Apr 19, 1977· The present invention relates to a process for producing liquid fuels from coal More particularly, it relates to an improved coal liquefaction process for converting coal to a crude petroleum refinable by conventional petroleum refining techniques to produce gasoline and/or diesel fuel...

Liquefaction Process

James G Speight, in Fuel Flexible Energy Generation, 2016 641 Liquefaction The liquefaction process (coal was the feedstock of choice for many decades in the twentieth century) is a process used to convert a solid fuel into a substitute for liquid fuels such as diesel and gasoline Coal liquefaction has historically been used in countries without a secure supply of petroleum, such as ....

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