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Exxonmobil Chemical Patents Inc.

John S Kennedy

Todd E Detjen

Catherine M Dorsi

Methods and related systems are disclosed for condensing a minor portion of an effluent stream from an alkylation reactor by contacting the effluent stream with a first liquid hydrocarbon quench stream and a second liquid hydrocarbon quench stream. The effluent stream includes catalyst fines from the reactor, and at least a portion of the catalyst fines are carried with the condensed minor portion of the effluent stream.

Systems and methods for aromatic alkylation

A cutter () is telescopically received in a cannula () and both the cutter and cannula are telescopically mounted on a tubular carrier (). A detection device () may be inserted through the open-ended carrier, cutter and cannula to properly place the surgical instrument in alignment with the tumor to be excised. Positioning tines () may penetrate the patient to firmly locate the carrier in its proper position on the patient. The cutter and cannula are moved about the carrier and are pressed into the tissue of the patient with the expectation that the circular core () of breast tissue formed by the cutter will have clear margins about the tumor. If the tumor extends too close to the circular incision, the cannula may be rotated so that its sidewall opening () faces the side of the remaining tissue to be excised and the surgeon can pull the remaining tissue through the sidewall and excise it, thereby avoiding a separate and delayed surgical procedure.

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Houston, TX, United States of America

John S Kennedy