Systems and methods to integrate product stabilization directly into the plasma conversion system are provided herein. The system includes a catalyst bed located downstream of the plasma reactor. The plasma reactor produces saturated and unsaturated hydrocarbons and hydrogen. The plasma effluent flows directly into a catalyst bed containing catalyst, which helps to provide process stability for species in the plasma effluent while they retain plasma-induced activation. The hydrogenation efficiency is controlled mostly by the catalyst bed temperature and space velocity. The stabilized product is sent to a separator unit where the liquid and gas products are separated for further processing.