Systems and processes for conversion of crude oil

A process for producing petrochemicals from crude oil, the process comprising:

• passing the crude oil and hydrogen into a hydroprocessing reactor, the hydroprocessing reactor comprising one or more hydroprocessing catalysts that produce a hydrotreated oil;
• separating the hydrotreated oil into a lesser boiling point fraction and a greater boiling point fraction;
• passing the lesser boiling point fraction to a pyrolysis section of a steam cracker to produce a pyrolysis effluent comprising olefins, aromatics, or both;
• passing the greater boiling point fraction to a gasifier, where the gasifier produces hydrogen;
• and
• passing at least a portion of the hydrogen produced by the gasifier to the hydroprocessing reactor.