Abstract: A process and apparatus integrate recovery of propylene from a pyrolysis reactor and a paraffin dehydrogenation reactor. A stripping column for fractionating a dehydrogenation stream is coupled with a demethanizer column for fractionating a pyrolyzed stream. The stripping overhead stream comprising C2? hydrocarbons are fractionated with the pyrolyzed stream in the demethanizer column. The coupling omits the need for a conventional deethanizer column and separate refrigeration system in the propane dehydrogenation unit.

Abstract: A process and apparatus integrate recovery of propylene from a pyrolysis reactor and a paraffin dehydrogenation reactor. A common C3 splitter column fractionates propylene product from propane recycle to a paraffin dehydrogenation reactor. The C3 hydrocarbons may be provided from a pyrolysis reactor and from a dehydrogenation reactor.

Abstract: An apparatus configured to: based on a plurality of geographical position data points associated with the position of a moving object; and based on a plurality of visual location data points obtained from a plurality of image frames captured from the moving object, the image frames showing a field of view of the moving object; determining a multi-modal trajectory by: matching the plurality of visual location data points with corresponding geographical navigation position data point of the plurality of geographical position data points; and determining the multi-modal trajectory as a best-fit trajectory having a deviation from the matched plurality of visual location data points and the plurality of geographical position data points within a predetermined tolerance; and smoothing the determined multi-modal trajectory to obtain a stable moving object trajectory indicative of a position and a heading of the moving object.