Methylcyclopentadienylmanganese tricarbonyl (MMT) is an excellent unleaded gas oline additive that can replace tetrae thyl lead. After reacting with carbon mon oxide, it can generate **solid cyclopentadienyl manganese tricarbonyl [(eta5-C5H5)Mn(CO)3] with stable chemical properties.
Oil plants optimize the allocation of resources, which saves crude oil. The use of MMT can reduce the crude oil requirement by about 1-2%, depending on the concentration of MMT added. In the United States, it is estimated that 82,000 barrels/day of crude oil will be saved if all gaso line is treated with MMT. It is estimated that more than 5 million tons of gaso line have been imported into MMT in China last year. If MMT is not used, but the same octane number is achieved by technological methods, 200,000 tons of crude oil will be consumed.
Muna da masana'antu masu inganci da yawa tare da haɗin gwiwa mai zurfi, wanda zai iya ba ku samfuran inganci da farashin gasa. Kuma muna iya ba da rangwamen kuɗi don sayayya mai yawa. Kuma muna ba da haɗin kai tare da ƙwararrun kamfanoni masu jigilar kaya, za su iya isar da samfuran cikin aminci da kwanciyar hankali ga hannunku. Lokacin bayarwa shine kimanin kwanaki 3-20 bayan tabbatar da biyan kuɗi.
Abu |
62% |
98% |
Manganese content,m/m(20ºC),% |
≥15.1 |
≥24.4 |
Density |
1.10~1.30 |
1.36~1.39 |
Freezing point (initial) |
≤-25 |
≤-1 |
Closed flash point |
≥50 |
≥80 |
Purity |
≥60 |
≥97 |
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MMT The performance characteristics
(1) increase the gasoline octane number
(2) increase in vehicle power and reduce fuel consumption
(3) with oxygen, such as MTBE and ethanol were good with the group of
(4) to reduce pollutants in automobile exhaust emissions
(5), motor vehicle exhaust catalytic converters to improve the role of
(6) to improve refinery operations
(7) to increase the flexibility of blending oil
Aikace-aikace
MMT decomposition in the combustion conditions for the activity of manganese oxide particles, because of the role of the surface, damage to automobile engines have been generated by peroxide, resulting in pre-flame reactions reduce the concentration of peroxide, at the same time part of a selective disruption of the chain reaction in order to impede the automatic fire, slowing the rate of energy release, so that increased antiknock fuel.
Hydrocarbons in gasoline of the sensitivity of MMT:
·Alkanes> alkenes> aromatics
·Low octane number fuel oil> high-octane fuel
· Research> motor
·Antiknock efficiency is twice as tetraethyl lead
· In gasoline by adding 18mg / L dose of the octane number of MMT in gasoline to improve the effectiveness of transfer and MTBE8% -10% of the octane number of the effect of a considerable improvement.
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