| 摘要 |
A PROCESS FOR PRODUCING ADDITIVE COMPOSITIONS, ESPECIALLY VIA A FISCHER-TROPSCH REACTION, USEFUL FOR IMPROVING THE CETANE NUMBER OR LUBRICITY, OR BOTH THE CETANE NUMBER AND LUBRICITY, OF A MID-DISTILLATE, DIESEL FUEL. IN PRODUCING THE ADDITIVE, THE PRODUCT OF A FISCHER-TROPSCH REACTION IS SEPARATED INTO A HIGH BOILING FRACTION AND A LOW BOILING, E.G., A 371 °C- (700°F-) FRACTION. THE HIGH BOILING FRACTION IS HYDRO ISOMERIZED AT CONDITIONS SUFFICIENT TO CONVERT IT TO A 371 °C- (700°F-) LOW BOILING FRACTION, THE LATTER BEING BLENDED WITH THE 371 °C- (700°F-) FRACTION AND THE DIESEL ADDITIVE IS RECOVERED THEREFROM. (FIGURE 1)
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