DE654470C - Motor fuel - Google Patents

Motor fuel

Info

Publication number
DE654470C
DE654470C DEB171495D DEB0171495D DE654470C DE 654470 C DE654470 C DE 654470C DE B171495 D DEB171495 D DE B171495D DE B0171495 D DEB0171495 D DE B0171495D DE 654470 C DE654470 C DE 654470C
Authority
DE
Germany
Prior art keywords
methanol
dimethyl ether
motor fuel
calorific value
fuel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEB171495D
Other languages
German (de)
Inventor
Dr Otto Gross
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bergwerksgesellschaft Hibernia AG
Original Assignee
Bergwerksgesellschaft Hibernia AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bergwerksgesellschaft Hibernia AG filed Critical Bergwerksgesellschaft Hibernia AG
Priority to DEB171495D priority Critical patent/DE654470C/en
Application granted granted Critical
Publication of DE654470C publication Critical patent/DE654470C/en
Expired legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/02Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
    • C10L1/00Liquid carbonaceous fuels
    • C10L1/02Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only
    • C10L1/023Liquid carbonaceous fuels essentially based on components consisting of carbon, hydrogen, and oxygen only for spark ignition

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Description

Motorbrennstoff Bei dem zunehmenden Bedarf an Treibstoffen für Verbrennungskraftmaschinen genügen die vorhandenen und aus Erdöl gewinnbaren Treibstoffmengen nicht. Damit nimmt die Bedeutung der Treibstoffe zu, deren Rohstoffgrundlage die Kohle ist.Motor fuel With the increasing demand for fuels for internal combustion engines The available fuel quantities that can be extracted from crude oil are not sufficient. In order to The importance of fuels increases, the raw material of which is coal.

Trotzdem Methanol zu den brennbaren Flüssigkeiten gehört, die am leichtesten in großen Mengen aus der Kohle bzw. aus ihren Vergasungsprodukten gewonnen werden, und seiner Flüchtigkeit entsprechend als leichter Treibstoff benutzt werden könnte, hat sich seine Verwendung als Treibstoff bisher nur in ganz geringem Maß eingeführt. Dies beruht hauptsächlich darauf, daß flüssiges Methanol einen sehr niedrigen Heizwert besitzt und der Heizwert für Methanoldampf je mg gegenüber flüssigen Kohlenwasserstoften verhältnismäßig noch weit geringer ist. Die Folge davon ist, daß die Leistung der Verbrennungsinotore bei Verwendung von Methanol gegenüber den sonstigen Brennstoffen sehr stark zurückgeht.Even so, methanol is one of the flammable liquids that is the most easily are obtained in large quantities from coal or from its gasification products, and according to its volatility could be used as a light fuel, Its use as a fuel has so far only been introduced to a very limited extent. This is mainly due to the fact that liquid methanol has a very low calorific value and the calorific value for methanol vapor per mg compared to liquid hydrocarbons is relatively far lower. The consequence of this is that the performance of the Combustion engines when using methanol compared to other fuels decreases very sharply.

Es wurde nun gefunden, daß an Stelle von reinem Methanol bestimmte Gemische aus Methanol und Dimethyläther in Verbrennungsmotoren verwendet werden können, ohne einen wesentlichen Leistungsabfall der Motore zu bewirken. Methanol läßt sich durch katalytische Umwandlung, insbesondere über Aluminiumoxyd, bei Temperaturen um q.00° fast vollständig mit Ausbeuten von 99 °/o der Theorie in Dimethyläther umwandeln, wenn von dem bei der Katalyse anfallenden Kondensat aus Methanol und Wasser das Methanol durch Destillation abgetrennt und der Katalyse wieder zugeführt wird. Eine Umwandlung zu anderen Stoffen als zu Dimethyläther und Wasser tritt bei Methanol im Gegensatz zu den höheren Alkoholen kaum in nennenswerter Weise ein. Der Dimethyläther besitzt fast den doppelten Heizwert pro kg und pro m3 Dampf wie Methanol. Sein Heizwert ist genügend groß, um einen wesentlichen Leistungsabfall der Motore zu verhindern. Dimethyläther selbst besitzt jedoch eine derartig starke Klopfneigung, daß es nicht möglich ist, mit Dimethyläther allein in einem normal verdichtenden Motor zu einem einigermaßen normalen Betrieb zu gelangen. Gemische von Dimethyläther mit 5 bis 45 % Methanol weisen jedoch durchaus brauchbare Kompressionsfestigkeiten auf, wobei überdies die Ausnutzung des Heizwertes des Methanols besser ist als bei Verwendung von reinem Methanol.It has now been found that, instead of pure methanol, certain mixtures of methanol and dimethyl ether can be used in internal combustion engines without causing a significant drop in engine performance. Methanol can be converted almost completely into dimethyl ether by catalytic conversion, in particular via aluminum oxide, at temperatures around q.00 ° with yields of 99% of theory, if the methanol is separated off by distillation from the condensate of methanol and water obtained in the catalysis and fed back into catalysis. A conversion to substances other than dimethyl ether and water hardly occurs in the case of methanol, in contrast to the higher alcohols. Dimethyl ether has almost twice the calorific value per kg and per m3 of steam as methanol. Its calorific value is high enough to prevent a significant drop in engine performance. However, dimethyl ether itself has such a strong tendency to knock that it is not possible to achieve a reasonably normal operation with dimethyl ether alone in a normal-compression engine. Mixtures of dimethyl ether with 5 to 45 % methanol, however, have useful compression strengths, and the utilization of the calorific value of the methanol is better than when using pure methanol.

Es ist zwar bereits vorgeschlagen worden, Motortreibstoffe, die neben anderen Bestandteilen auch Methanol und Dimethyläther enthalten, anzuwenden. Es wurden jedoch hierbei Mischungen mit weit höheren Alkoholgehalten angegeben, die keinen höheren Heiz- wert als die Alkohole allein ergaben und ri@i,`,' denen keine Leistungssteigerung gegeni' ' den reinen Alkoholen erzielt werden konti:t . It has already been proposed to use motor fuels which, in addition to other components, also contain methanol and dimethyl ether. Here, however, mixtures with much higher alcohol contents were specified, which do not have higher heating worth than the alcohols alone gave and ri @ i, `, ' against whom no increase in performance '' the pure alcohols are achieved continuously.

Claims (1)

PATENXTA@;srrurir: Motorbrennstoff aus Dimethvläther und Methanol, gekennzeichnet durch einen Ge- 'halt von 5 bis 45 ofo Methanol.
PATENXTA @; srrurir: Engine fuel made from Dimethvläther and Methanol, characterized by a 'holds from 5 to 45 ofo methanol.
DEB171495D 1935-10-22 1935-10-22 Motor fuel Expired DE654470C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB171495D DE654470C (en) 1935-10-22 1935-10-22 Motor fuel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB171495D DE654470C (en) 1935-10-22 1935-10-22 Motor fuel

Publications (1)

Publication Number Publication Date
DE654470C true DE654470C (en) 1937-12-20

Family

ID=7006795

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB171495D Expired DE654470C (en) 1935-10-22 1935-10-22 Motor fuel

Country Status (1)

Country Link
DE (1) DE654470C (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4603662A (en) * 1979-05-14 1986-08-05 Aeci Limited Fuels
EP0775185B1 (en) * 1994-08-12 1998-09-02 Amoco Corporation Diesel fuel composition based on dimethylether
WO1999001526A1 (en) * 1997-07-01 1999-01-14 Amoco Corporation DIMETHYL ETHER FUEL AND METHOD OF GENERATING POWER IN A DRY LOW NOx COMBUSTION SYSTEM
US5906664A (en) * 1994-08-12 1999-05-25 Amoco Corporation Fuels for diesel engines
EP1106803A3 (en) * 1999-12-10 2002-06-05 Haldor Topsoe A/S Method of operating a compression ignition engine

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4603662A (en) * 1979-05-14 1986-08-05 Aeci Limited Fuels
EP0775185B1 (en) * 1994-08-12 1998-09-02 Amoco Corporation Diesel fuel composition based on dimethylether
US5906664A (en) * 1994-08-12 1999-05-25 Amoco Corporation Fuels for diesel engines
US6270541B1 (en) * 1994-08-12 2001-08-07 Bp Corporation North America Inc. Diesel fuel composition
WO1999001526A1 (en) * 1997-07-01 1999-01-14 Amoco Corporation DIMETHYL ETHER FUEL AND METHOD OF GENERATING POWER IN A DRY LOW NOx COMBUSTION SYSTEM
AU721782B2 (en) * 1997-07-01 2000-07-13 Bp Amoco Corporation Dimethyl ether fuel and method of generating power in a dry low NOx combustion system
US6324827B1 (en) 1997-07-01 2001-12-04 Bp Corporation North America Inc. Method of generating power in a dry low NOx combustion system
EP1106803A3 (en) * 1999-12-10 2002-06-05 Haldor Topsoe A/S Method of operating a compression ignition engine

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