Research Project Information

Research Project Summary Information

Commercialization of Collision Mill Technology(ST10342-1)

Mesa Reduction Engineering and Processin


One way to reduce the carbon footprint of coal-fired power plants is to replace part of the coal fuel with carbon-neutral renewable biomass fuel. It is envisioned that biomass could be blended with coal and sent to the plant's existing fuel preparation and feeding system. A limiting factor in this approach is that existing coal pulverizers can only process less than 5% biomass by weight without negative impacts on pulverizer grinding ability. Mesa Reduction Engineering & Processing, Inc. developed and patented the Collision Mill Technology that produces a blended or neat biomass fuel that can be integrated into existing coal-fired boiler fuel feeding systems, and can provide feedstock for biomass fuel production. The Collision Mill uses a single process to prepare biomass or biomass/coal blends in a form for use as a power plant fuel. Unlike existing coal pulverizers, the Collision Mill can co-process in excess of 10% biomass with coal. Significant greenhouse gas reductions are possible without major modifications to the coal preparation and feeding system. In a previous NYSERDA Phase 1 Project, a prototype Mesa Collision Mill -size reduction technology was demonstrated at Schutte-Buffalo Hammermill Corp., and at the AES Greenidge Plant in Dresden. The project tested a variety of coals, biomass materials, and processing schemes, to obtain design data for scaling-up the prototype to a commercial-size mill.

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Project Description

Schutte-Buffalo Hammermill Corp. will construct a 10 Ton/hour biomass collision mill in accordance with Mesa's design specifications. The mill will be installed at the AES Greenidge Plant for demonstration testing. Cornell University College of Agriculture and Life Sciences will provide several biomass feedstocks for mill testing.


Biomass fuels can back out fossil fuel combustion and reduce carbon dioxide emissions. AES Greenidge will generate Renewable Portfolio Standards emission credits. Schutte-Buffalo will add the reduction equipment to its product line and provide new employment opportunities.

Project Results


Mesa Reduction Engineering and Processin
6030 E Lake Rd
Auburn, NY 13021

Principle Investigator

Matt McArdle

Universities Involved


Project Type:

Product Development

Technologies Types:

Energy Power Supply
Combustion Turbine

NYSERDA Contact Information

John Love


R&D - Energy Mkts & Pwr Del

Contract Details

Start Date: 1/11/2010
Project Status: Active
Contract Number: ST10342-1

Last Updated: 8/29/2014