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Scaleup for a downer FCC process

By Edited by Gerald Ondrey |

In October, Nippon Oil Corp. (Tokyo, Japan;www.eneos.co.jp) will start constructing a high-severity fluidized-catalytic cracking (HS-FCC) unit, the first in the world that can produce large amounts of propylene from heavy fuel oils. The unit, located at Mizushima Refinery (Kurashiki-City), will start up in early 2011. The 3,000 bbl/d facility is 100 times larger than the 30 bbl/d HS-FCC demonstration unit that was developed in collaboration with Japan Cooperation Center, Petroleum (JCCP), Petroleum Energy Center (PEC), and Saudi Aramco (CE, December 2001, p. 21), and the company says it will scale up by another factor of 10 in a few years. Hiroji Adachi, executive officer and general manager of the Technical Service Department, commented expectings to start royalty business through licensing this technology. In 2009, the Ministry of Economy, Trade and Industry (METI) will supply two thirds of the approximately $46 million for the project.   In the HS-FCC process, heavy oil is injected into a downflow reactor with powdered catalyst, where the oil is decomposed within 0.5 s at 600°C. (A conventional FCC typically operates at about 500°C, with a contact time of 1–4 s.) The propylene yield is best among all propylene…
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