Sinopec ranked second on Fortune magazine's Global 500 company list this year with USD 359.2 billion in assets and USD 446.8 billion in revenues.
Wang Tianpu, who was put under investigation in April, was found to have taken bribes, offered benefits in exchange for his own promotion, and embezzled public assets, among other wrongdoings, the Central Commission for Discipline Inspection (CCDI) said in a statement.
Chinese President Xi Jinping has pursued a highly publicised anti-graft drive since taking office, vowing to go after both senior "tigers" and low-level "flies".
But critics say the drive is open to factionalism and that the Communist Party has failed to introduce systemic reforms to prevent graft, such as public disclosure of assets.
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The CCDI statement said that "As a high-ranking cadre of the party, Wang Tianpu seriously violated disciplines."
His actions were "vicious in nature and the circumstances were severe", it added.
The party had decided to expel him and the government had approved his removal from his public posts, it said.