Abstract: Provided is a continuous process for converting waste plastic into recycle for polyethylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a stable blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a refinery FCC unit. A liquid petroleum gas LPG olefin/paraffin mixture and naphtha are recovered from the FCC unit and passed to a steam cracker to make ethylene.

Abstract: Provided is a continuous process for converting waste plastic into recycle for polypropylene polymerization. The process comprises selecting waste plastics containing polyethylene and/or polypropylene and preparing a stable blend of petroleum and the selected plastic. The amount of plastic in the blend comprises no more than 20 wt. % of the blend. The blend is passed to a refinery FCC unit. A liquid petroleum gas C3 olefin/paraffin mixture is recovered from the FCC unit. The C3 paraffins and C3 olefins are separated into different fractions with the C3 olefin fraction passed to a propylene polymerization reactor, and the C3 paraffin fraction passed optionally to a dehydrogenation unit to produce additional propylene.

Abstract: A process is provided for the catalytic cracking of a glyceride oil feedstock with a catalyst composition containing a phosphorus-containing ZSM-5 light olefins additive.

Abstract: A test stand for testing hydraulic devices such as hydraulic pumps and motors, either separately or jointly. The test stand is comprised of a primary power source which acts in combination with a hydraulic motor to drive a drive train, which is in turn, operated by a hydraulic pump. The hydraulic pump and the hydraulic motor are fluidly connected together by passage means so that hydraulic fluid can be pumped therebetween. A pressure control means is present in the passage means for sensing and preventing the pressure from going above a predetermined value. Connected between this pressure control means and the hydraulic motor is a control means for adjusting the fluid displacement of the hydraulic motor to correspond to the fluid output of the hydraulic pump. This control means enables the hydraulic motor to operate in synch with the hydraulic pump at all times. The test stand also has power regenerative features wherein the hydraulic motor is capable of converting the fluid pressure to mechanical power.