| 摘要 |
<p>A PROCESS WITH AN INCREASED EFFICIENCY FOR THE PREPARATION OF MIDDLE DISTILLATES WITH EXCELLENT PROPERTIES AT LOW TEMPERATURES AND SUBSTANTIALLY WITHOUT OXYGENATED ORGANIC COMPOUNDS, STARTING FROM A SYNTHETIC MIXTURE OF HYDROCARBONS AT LEAST PARTLY WAXY, CONTAINING A FRACTION OF ALCOHOLS, COMPRISING THE SEPARATION OF THE MIXTURE INTO A LOW-BOILING FRACTION AND A HIGH-BOILING FRACTION; THE SUBSEQUENT HYDROGENATION OF THE LOW-BOILING FRACTION UNDER SUCH CONDITIONS AS TO AVOID ANY SUBSTANTIAL VARIATION IN ITS AVERAGE MOLECULAR WEIGHT; THE JOINING OF A LEAST A PART OF THE HYDROGENATED FRACTION WITH SAID HIGH-BOILING FRACTIONS, AND THE SUBSEQUENT CATALYTIC HYDROCRACKING TREATMENT OF THE MIXTURE OF HYDROCARBON THUS FORMED, TO OBTAIN A SUBSTANTIAL CONVERSION OF THE WAXY PART INTO MIDDLE DISTILLATE.</p> |
