| 摘要 |
2 7 A B S T R A C T PROCESS FOR THE PREPARATION OF LOWER OLEFINS FROM HEAVY WAX THE PRESENT INVENTION RELATES TO A PROCESS FOR THE 5 PREPARATION OF LOWER OLEFINS FROM A HEAVY SYNTHETIC OIL FRACTION PREPARED IN A FISCHER TOPSCH PROCESS. THE PROCESS ACCORDING TO THE INVENTION COMPRISES MILD THERMAL CRACKING OF THE HEAVY SYNTHETIC OIL FRACTION, FOLLOWED BY SHORT RESIDENCE, HIGH TEMPERATURE THERMAL 10 CRACKING OF THE PRODUCT OBTAINED IN THE FIRST PROCESS. -,3 3 2 9@S/1) /05
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