Aduro Clean Technologies Inc. (NASDAQ: ADUR) (TSX: ACT) reported results from its latest operating campaign at its Next Generation Process pilot plant, achieving 86% liquid hydrocarbon recovery from waste plastic feedstock.

The campaign operated continuously for 47 hours using polypropylene recovered from waste plastics under the company's 24/4 operating model. Steady-state conditions were achieved after approximately 12 hours and maintained for an additional 35 hours, according to a company statement.

Of the liquid hydrocarbon recovered, 85% consisted of compounds with carbon numbers of 20 or below, which the company said corresponds to the range typically associated with naphtha cracker feedstocks. The process used Aduro's Hydrochemolytic technology to convert the plastic waste.

During the campaign, steady-state conditions were re-established within approximately two hours after intentional operating changes were made to test process robustness. Product quality analysis showed results consistent with prior testing using the same feedstock.

The pilot plant operated under controlled conditions with the reactor maintained at target temperature, pressure, and recipe specifications. Samples were collected at regular intervals to assess process performance and stability.

"The NGP Pilot Plant is doing what it was designed to do: generate practical operating, yield, and product-quality data that helps us define the parameters for the next stage of scale-up," said Chief Executive Officer Ofer Vicus.

The results will inform design inputs for Aduro's planned first-of-a-kind industrial plant and support planning for longer-duration campaigns using mixed polypropylene and polyethylene feedstocks. The company aims to progress from its current 24/4 operating model toward sustained 24/7 operation.

Aduro Clean Technologies develops technology to transform waste plastics, heavy bitumen, and renewable oils into chemical feedstocks.