Continuous thermochemical conversion process to produce oil from swine manure

Kim Ocfemia, Yuanhui Zhang, Ted Funk, Leslie Christianson, Shiaoguo Chen

Research output: Contribution to journalConference articlepeer-review


Thermochemical conversion (TCC) of livestock manure is a novel technology that has shown very promising results in treating waste and producing oil. A batch TCC system that was previously developed was shown to have successfully converted 70% of swine manure volatile solids to oil and reduced manure chemical oxygen demand by up to 75%. Since a continuous-mode system is more applicable for scale-up operations, a bench-scale continuous thermochemical conversion (CTCC) system was developed to evaluate the technical feasibility and economical viability of a pilot plant that is capable of producing oil from swine manure. The system was designed to operate at 305°C and 10.3MPa based on the optimal process conditions derived from the batch-process study. The main components of the system are: a manure preprocessor, a low-flow rate high-pressure slurry feeder, a process gas feeding system, a high-temperature high-pressure reactor, gas and liquid products separation vessel, and process controllers. The bench-scale CTCC unit has a capacity to process up to 3.6 kg of raw manure per hour.

Original languageEnglish (US)
Pages (from-to)5577-5586
Number of pages10
JournalProceedings of the Air and Waste Management Association's Annual Meeting and Exhibition
StatePublished - 2004
EventProceedings of the A and WMA's 97th Annual Conference and Exhibition; Sustainable Development: Gearing Up for the Challenge - Indianapolis, IN, United States
Duration: Jun 22 2004Jun 25 2004

ASJC Scopus subject areas

  • General Engineering


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