San Francisco - E-marketplace ChemConnect Inc. named former BP Amoco p.l.c. executive John Robinson as its new CEO. Robinson, a group VP at BP Amoco, will replace current CEO John Beasley, who will become chairman. ChemConnect hopes that by landing a chemical industry veteran it will attract more companies to its Web exchange. Beasley, while successful in getting ChemConnect off the ground, does not have a backgroundin the chemical industry.