coal oil energy development

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[Direct coal liquefaction]
This is a method of directly converting solid coal into liquid fuel. It is classified into three types according to the principle: (1) low-temperature carbonization (COED method), (2) catalytic hydrocracking (Bergius method, H-Coal method), and (3) non-contact solvent extraction (SRC method, EDS method, solvolysis method). (1) Low-temperature carbonization This is a method in which coal is carbonized at a relatively low temperature (400-600°C) and the resulting low-temperature tar is refined to produce liquid fuel. There are methods such as the COED (coal oil energy development) method, but the drawback is that the yield of liquid products is low. (2) Catalytic hydrocracking This method (Bergius method) was developed and implemented by F. Bergius of Germany before World War II. At that time, coal was pulverized and mixed with coal liquefaction oil to form a slurry, and iron sulfide or tin chloride was added as a catalyst, and the coal was hydrocracking in the presence of hydrogen at high temperature (400-500°C) and high pressure (200-700 atm). …

*Some of the terminology used in relation to "coal oil energy development" is listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

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［石炭の直接液化］
　固体である石炭を直接的に液体燃料に変換する方法で，原理によって，(1)低温乾留法(COED法)，(2)接触水素化分解法(ベルギウス法，H‐Coal法)，(3)非接触溶剤抽出法(SRC法，EDS法，ソルボリシス法)の3種類に分類される。(1)低温乾留法　石炭を比較的低温(400～600℃)で乾留し，得られる低温タールを精製して液体燃料とする方法で，COED(coal oil energy development)法などがあるが，液体製品の収率が低いのが欠点である。(2)接触水素化分解法　ドイツのF.ベルギウスによって第2次大戦前に開発され，実施された方法(ベルギウス法)で，当時は石炭を微粉化し，石炭の液化油と混合してスラリー状とし，硫化鉄や塩化スズを触媒として加え，水素の共存下に高温(400～500℃)，高圧(200～700気圧)下で石炭の水素化分解を行うものであった。…

※「coal oil energy development」について言及している用語解説の一部を掲載しています。

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