TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The catalyst comprises at least one zeolite of ZSM-5, ZSM-11, ZSM-22, ZSM-48, ZSM-23, ITQ-13 and Ferrierite, preferably ZSM-5, ZSM-11 and ZSM-22. The catalyst comprises two or more zeolites, comprising at least: one zeolite having a 10-membered ring channel and an one dimensional channel structure; and one zeolite having a 10-membered ring channel and a multi-dimensional channel structure, preferably ZSM-22 and ZSM-5. The feed comprises 0-200 parts per million by weight of sulfur or sulfur compounds, where the catalyst comprises a Group VIII metal, preferably platinum and/or palladium. The feed comprises at least 10 parts per million by weight of sulfur or sulfur compounds, where the catalyst comprises a Group VIII metal and a Group VIb metal, preferably cobalt and molybdenum, nickel and tungsten and/or nickel and molybdenum.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The paraffins are present at at least 10 wt.%. The feed is derived from naphtha. The feed comprises at least n-butane and isobutane, preferably 50-99 wt.% of n-butane and isobutane. The gas cracker feedstock contains no more than 1 wt.% of hydrogen. Preferred Process: The feed is contacted with the catalyst at 200-650 degrees C, preferably 250-550 degrees C. The feed is contacted with the catalyst at a pressure of 3-100 bar (gauge), preferably 5-60 bar (gauge). EXAMPLE - Zeolite ZSM-22 powders were first pressed into pills, crushed and sieved in a 30-80 mesh sieve fraction, where the zeolites were used in ammonium form (NH4+). The obtained materials were impregnated with a solution containing tetraammineplatinum(II) nitrate to arrive at a final platinum loading of 0.7 wt.%. The catalyst was calcined at for 1 hour at 350 degrees C and for 1 hour at 500 degrees C. Hydrogen and n-butane were reacted over the obtained catalyst by using a stainless steel reactor tube of 1.8 mm internal diameter. The catalyst (80 mg) was placed in the reactor, dried in a nitrogen flow at 100 degrees C, and then reduced in a mixture of 15% of hydrogen and 85% of nitrogen at atmospheric pressure and 400 degrees C. The catalyst samples were the brought to 250 degrees C after which a mixture consisting of 2.7 vol.% of n-butane, 7 vol.% of hydrogen, balanced in argon and nitrogen was passed over the catalyst at a total pressure of 29 barg (bar gauge) and worked up to give hydrocracked gas cracker feedstock comprising ethane and/or propane.