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October chementator briefs

By Edited by Gerald Ondrey |

Improved C5 use Some 106,000 ton/yr of so-called spent C5 fraction is generated at Mitsui Chemicals Inc.’s (Mitsui; Tokyo, Japan; www.mitsuichem.com) naphtha cracker at its Chiba Factory. Presently, the company is selling about half of the C5 fraction (50,000 ton/yr) — after partial hydrogenation — to Idemitsu Kosan Co. (Tokyo) for gasoline production, and the remainder is burned as fuel. In order to better utilize these C5s, the company is investing ¥1.3 billion ($13 million) for the construction of a new hydrogenation facility. When the unit starts up in July, 2012, it will be used to hydrogenate the C5 fraction using H2 from its naphtha cracker. Isoprene will then be extracted, which will be used by JSR Corp. (Tokyo) for making synthetic rubber, and the remaining materials used to enhance ethylene production at Mitsui’s naphtha cracker. In so doing, Mitsui expects to achieve savings in naphtha consumption of several percent. Efficient screw pumps Allweiler AG (Radolfzell, Germany; www.allweiler.de) has developed a new system for regulating the speed of its screw pumps that can lead to energy savings as high as 75%. Dubbed Allspeed, the new control system features a proprietary algorithm that adaptively…
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