Technology Catalog - Vendor Detail

Heat Transfer International (HTI) - Thermal Processing
Turning waste to energy, liabilities to assets and visions into reality

Company Description:

Heat Transfer International (HTI) home office is based in Kentwood Michigan. In the Kentwood facility, HTI has a state of the art fuels laboratory, engineering design and development center, a pilot scale Biomass Development Center and an advanced manufacturing rapid prototyping center. HTI's heavy metal manufacturing is done at the Morbark Manufacturing's facility in Winn Michigan. Morbark is one of HTI's owners. With years of engineering and manufacturing knowledge, HTI is proud to offer a unique waste-to-energy gasification process and high temperature ceramic heat exchanger technology. The technology was acquired in 2006 when HTI purchased the Patents of Bob Graham and IP of Presque Isle Engineering and C & H Combustion.

Technology Description:

Gasification is an oxygen-starved process that converts solid fuels such as biomass and coal into gaseous fuels such as hydrogen and carbon monoxide. HTI's gasification designs are uniquely capable of producing not only heat, but also electrical power and facility cooling. When using biomass feedstocks, or a "carbon-neutral" fuel, gasification technology can destroy wastes while concurrently producing renewable energy. Gasification has successfully demonstrated the ability to convert a variety of waste materials into heat, cooling and electrical power.


Heat Transfer International (HTI)

4720 44th Street SE

Kentwood, MI 49512




Technology Type

  • Gasification


  • Equipment Vendor
  • Project Developer


  • Energy


  • Phosphorous
  • Storage
  • Odor
  • Pathogens
  • GHG

Technology Strengths,Weaknesses and Critical Indicators


  • Produces a soil amendment in the form of biochar
  • Biochar does not yet have an established, stable commercial market
  • There is significant variation in energy use and recovery depending on feedstock
  • There is significant variation of operational intensity by site and by technology, many technologies require pairing with other technologies to offer a comprehensive manure management solution
  • There is significant variation of cost depending on site and by technology
  • Proven technology for phosphorous recovery, storage reduction, GHG reduction, odor control and pathogen reduction
  • This technology loses nitrogen to the atmosphere

Newtrient Comments/Opinions:

Thermal process technologies:

  • Produce a soil amendment in the form of biochar, ash and other products
  • These products have not yet established a stable commercial market
  • Include pyrolysis, torrefaction, gasification and hydrothermal carbonization
  • There is significant variation in energy use and recovery depending on feedstock
  • There is significant variation of operational intensity by site and by technology
  • There is significant variation of cost by site and by technology


HTI is a manufacture of gasification equipment and ceramic heat exchangers.  HTI has installed a commercial scale gasifier to reclaim energy and concentrated phosphorus from turkey manure.  Due to the low moisture content of dairy manure, HTI is not actively seeking dairy projects. HTI has not been evaluated using Newtrient's 9-point scoring process because they are not seeking any additional dairy based projects.  

Comments added 02/03/2017

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