catalytic reformer

Gasoline is a petroleum-derived liquid mixture consisting primarily of hydrocarbons, used as fuel in internal combustion engines. Gasoline - Chemical analysis and production. Gasoline is produced in oil refineries. These days, material that is simply separated from crude oil via distillation, called natural gasoline, will not meet the required specifications (in particular octane rating; see below) for modern engines, but these streams will form part of the blend. The bulk of a typical gasoline consi ...

Including:

• Gasoline - Chemical analysis and production
• Gasoline - Volatility
• Gasoline - Octane rating
• Gasoline - Dangers
• Gasoline - Energy content
• Gasoline - Additives
• Gasoline - Lead
• Gasoline - MMT
• Gasoline - Oxygenate blending
• Gasoline - History
• Gasoline - Pharmaceutical
• Gasoline - Etymology
• Gasoline - World War II and octane
• Gasoline - Current use
• Gasoline - Stability

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Alkylation is the transfer of an alkyl group from one molecule to another. In a standard oil refinery process, alkylation combines low-molecular-weight olefins (primarily a mixture of propylene and butylene) with isobutane in the presence of a catalyst, either sulfuric acid or hydrofluoric acid. The product is called alkylate and is composed of a mixture of high-octane, branched-chain paraffinic hydrocarbons. Alkylate is a premium gasoline blending stock because it has exceptional antiknock properties and is clean burning. The ...

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Gasoline is produced in oil refineries. These days, material that is simply separated from crude oil via distillation, called natural gasoline, will not meet the required specifications (in particular octane rating; see below) for modern engines, but these streams will form part of the blend. The bulk of a typical gasoline consists of hydrocarbons with between 5 and 12 carbon atoms per molecule. The various refinery streams that are blended together to make gasoline all have different characteristics. Some important streams are ...

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Gasoline, Gasoline - Chemical analysis and production, Gasoline - Volatility, Gasoline - Octane rating, Gasoline - Dangers, Gasoline - Energy content, Gasoline - Additives, Gasoline - Lead, Gasoline - MMT, Gasoline - Oxygenate blending, Gasoline - History, Gasoline - Pharmaceutical, Gasoline - Etymology, Gasoline - World War II and octane, Gasoline - Current use, Gasoline - Stability

Read more here: » Gasoline: Encyclopedia II - Gasoline - Chemical analysis and production

Toluene reacts as a normal aromatic hydrocarbon towards electrophilic aromatic substitution. The methyl group makes it around 25 times more reactive than benzene in such reactions. It undergoes smooth sulfonation to give p-toluenesulfonic acid, and chlorination by Cl2 in the presence of FeCl3 to give ortho and para isomers of chlorotoluene. It undergoes nitration to give ortho and para nitrotoluene isomers, but if heated it can give dinitrotoluene and ...

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Toluene, Toluene - History, Toluene - Chemical properties, Toluene - Preparation, Toluene - Uses, Toluene - Precautions and metabolism, Toluene - Behavioural Effects of Long Term Exposure, Toluene - Suppliers/manufacturers

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Serious adverse behavioural effects are often associated with toluene abuse related to the deliberate inhalation of solvents.4 Long term toluene exposure is often associated with effects such as: psychoorganic syndrome;5 visual evoked potential (VEP) abnormality;5 toxic polyneuropathy, cerebellar, cognitive, and pyramidal dysfunctions;5 optic atrophy; and brain lesions.4 Toluene causes postural tremors by increasing extracellular concentrations of γ-aminobutyric acid (GABA) withi ...

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Toluene, Toluene - History, Toluene - Chemical properties, Toluene - Preparation, Toluene - Uses, Toluene - Precautions and metabolism, Toluene - Behavioural Effects of Long Term Exposure, Toluene - Suppliers/manufacturers

Read more here: » Toluene: Encyclopedia II - Toluene - Behavioural Effects of Long Term Exposure

Gasoline - Lead. The mixture known as gasoline when used in high compression internal combustion engines, has a tendency to ignite early (pre-ignition or detonation) causing a damaging "engine knocking" (also called "pinging") noise. Early research into this effect was led by A.H. Gibson and Harry Ricardo in England and Thomas Midgley and Thomas Boyd in the United States. The discovery that lead additives modified this behavior led to the widespread adoption of the practice in the 1920s and hence mo ...

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Gasoline, Gasoline - Chemical analysis and production, Gasoline - Volatility, Gasoline - Octane rating, Gasoline - Dangers, Gasoline - Energy content, Gasoline - Additives, Gasoline - Lead, Gasoline - MMT, Gasoline - Oxygenate blending, Gasoline - History, Gasoline - Pharmaceutical, Gasoline - Etymology, Gasoline - World War II and octane, Gasoline - Current use, Gasoline - Stability

Read more here: » Gasoline: Encyclopedia II - Gasoline - Additives

For the main article on this topic see Toluene (toxicology). Inhalation of toluene fumes can be intoxicating, but in larger doses nausea-inducing. Chronic or frequent inhalation of toluene over long time periods leads to irreversible brain damage. The toxicity of toluene can be explained mostly by its metabolism. As toluene has very low water solubility, it cannot exit the body via the normal routes (urine, feces, or sweat). It must be metabolized in order to be excreted. The methyl group of toluene is more easily oxidized by c ...

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Toluene, Toluene - History, Toluene - Chemical properties, Toluene - Preparation, Toluene - Uses, Toluene - Precautions and metabolism, Toluene - Behavioural Effects of Long Term Exposure, Toluene - Suppliers/manufacturers

Read more here: » Toluene: Encyclopedia II - Toluene - Precautions and metabolism

Gasoline - Pharmaceutical. Before internal combustion engines were invented in the mid-1800s, gasoline was sold in small bottles as a treatment against lice and their eggs. In those early times, the word "Petrol" was a trade name. This treatment method is no longer common, due to the inherent fire hazard and risk of dermatitis and that gasoline is a carcinogen where continued contact might develop cancerous growths. The word petrol may be derived from Old French pétrole, meaning petroleum: see Etymology. Petrol is also abused as a psychoactive inhalant. See also:

Gasoline, Gasoline - Chemical analysis and production, Gasoline - Volatility, Gasoline - Octane rating, Gasoline - Dangers, Gasoline - Energy content, Gasoline - Additives, Gasoline - Lead, Gasoline - MMT, Gasoline - Oxygenate blending, Gasoline - History, Gasoline - Pharmaceutical, Gasoline - Etymology, Gasoline - World War II and octane, Gasoline - Current use, Gasoline - Stability

Read more here: » Gasoline: Encyclopedia II - Gasoline - History

Many of the non-aliphatic hydrocarbons naturally present in gasoline (especially aromatic ones like benzene), as well as many anti-knocking additives, are carcinogenic. Because of this, any large-scale or ongoing leaks of gasoline pose a threat to the public's health and the environment, should the gasoline reach a public supply of drinking water. The chief risks of such leaks come not from vehicles, but from gasoline delivery truck accidents and leaks from storage tanks. Because of this risk, most (underground) storage tanks now have extens ...

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Gasoline, Gasoline - Chemical analysis and production, Gasoline - Volatility, Gasoline - Octane rating, Gasoline - Dangers, Gasoline - Energy content, Gasoline - Additives, Gasoline - Lead, Gasoline - MMT, Gasoline - Oxygenate blending, Gasoline - History, Gasoline - Pharmaceutical, Gasoline - Etymology, Gasoline - World War II and octane, Gasoline - Current use, Gasoline - Stability

Read more here: » Gasoline: Encyclopedia II - Gasoline - Dangers

Gasoline contains about 45 megajoules per kilogram (MJ/kg) or 135MJ/US gallon. Volumetric energy density of some fuels compared to gasoline: A high octane fuel such as LPG has a lower energy content than lower octane gasoline, resulting in an overall lower power output at the regular compression ratio an engine ran at on gasoline. However, with an engine tuned to the use of LPG (ie. via higher compression ratios such as 12:1 instead of 8:1), this lower power output can be overcome. This is because higher-octane fuels allow for a ...

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Gasoline, Gasoline - Chemical analysis and production, Gasoline - Volatility, Gasoline - Octane rating, Gasoline - Dangers, Gasoline - Energy content, Gasoline - Additives, Gasoline - Lead, Gasoline - MMT, Gasoline - Oxygenate blending, Gasoline - History, Gasoline - Pharmaceutical, Gasoline - Etymology, Gasoline - World War II and octane, Gasoline - Current use, Gasoline - Stability

Read more here: » Gasoline: Encyclopedia II - Gasoline - Energy content

Gasoline - Lead. The mixture known as gasoline when used in high compression internal combustion engines, has a tendency to explode early ( pre-ignition pre-detonation) causing a damaging "engine knocking" (also called "pinging") noise. Early research into this effect was led by A.H. Gibson and Harry Ricardo in England and Thomas Midgley and Thomas Boyd in the United States. The discovery that lead additives modified this behavior led to the widespread adoption of the practice in the 1920s and hence ...

See also:

Gasoline, Gasoline - Chemical analysis and production, Gasoline - Volatility, Gasoline - Octane rating, Gasoline - Dangers, Gasoline - Energy content, Gasoline - Additives, Gasoline - Lead, Gasoline - MMT, Gasoline - Oxygenate blending, Gasoline - History, Gasoline - Pharmaceutical, Gasoline - Etymology, Gasoline - World War II and octane, Gasoline - Current use, Gasoline - Stability

Read more here: » Gasoline: Encyclopedia II - Gasoline - Additives