Coker feed method and apparatus

US7736470B2 · kind B2 · utility

Assignee

• EXXONMOBIL RESEARCH AND ENGINEERING COMPANY · US

Inventors

• Te-Hung Chen · Florham Park, US
• Christopher P. Eppig · Cambridge, US
• Timothy M. Healy · Centreville, US
• Scott F. Massenzio · Houston, US
• Robert W. Mosley · Beaumont, US
• Rutton D. Patel · Berkeley Heights, US

Key dates

• Filing date: Mar 12, 2007
• Grant date: Jun 15, 2010
• Expiry date: Sep 16, 2028

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10B55/00
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Described herein are methods and mechanisms for laterally dispensing fluid to a coke drum in a predictable and maintainable manner that alleviates thermal stress. In one embodiment, the methods and mechanisms utilize a split piping system to dispense fluid through two or more inlets into a spool that is connected to a coke drum and a coke drum bottom deheader valve. A combination of block valves and clean out ports provides a more effective means to clean the lines and allows fluid to be laterally dispensed in a controllable and predictable manner. The fluid is preferably introduced to the spool in opposing directions toward a central vertical axis of the spool at equal but opposing angles ranging from minus thirty (−30) to thirty (30) degrees relative to a horizontal line laterally bisecting the spool. Alternatively, however, fluid can be introduced to the spool tangentially.