Diesel sulfur free synthetic

For hydrocarbon steam reforming, 95% conversion was achieved at GHSV values between 36 000 and 144 000 h 1 at very low reforming temperatures between 450 and 600 °C. Synthetic, sulfur free diesel was processed at a GHSV of 144 000 fT1 and an S/C ratio of 3 at a 530 °C reaction temperature. More than 90% conversion was achieved for almost 10 h duration. On the other hand, methanol reforming was performed at very high reaction temperature between 350 and 425 °C. 

Dimethyl ether (DME) has been used as a fuel and propellant. It is miscible with most organic solvents and is currently under study as a fuel additive for diesel engines due to its high volatility and high cetane number. DME, like other synthetically derived fuels, can be produced from syngas, is essentially sulfur free, contains nearly zero aromatic compounds, and is considered an excellent substitute for conventional diesel and liquefied petroleum gas (LPG). DME has several physical properties similar to those of LPG. 

Synthetic diesel oil with a boiling range of 300-450°C. may be used as recycle oil since it meets the requirement of a sulfur-free oil. After several days the oil and the production of new synthetic hydrocarbons result in an equilibrium composition of the recycle oil so that 65% boils below 450°C. (72). 

Emission standards for diesel vehicles have tightened or are expected to tighten considerably in many countries and regions. These standards have resulted in emission or content limits on sulfur, particulates, aromatics, and nitrogen oxides. Synthetic ultra-clean transportation fuels are virtually free of sulfur and are primarily paraffinic. Therefore, they are considered a potentially... 

BTL diesel is a renewable fuel of excellent quality, compared to both fossil-derived diesel and first-generation biodiesel produced via the transesterification of vegetable oils. BTL synthetic fuel consists mainly of linear paraffinic hydrocarbons with almost zero aromatics and sulfur compounds. The physical properties of BTL diesel presented in Table 18.6 (Rantanen et al., 2005) demonstrate its very high cetane number that can reach up to 75, much higher than conventional diesel. The big advantage of BTL diesel is that it is directly usable today in the transportation sector and furthermore it may be suitable for future fuel cell vehicles via on-board reforming since it is free of sulfur. 

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