There are several by-products from ethanol production that can be transformed into profitable end products when dried properly. For grain-based ethanol this includes dried distillers grain solubles (DDGS). For cellulosic ethanol this includes the spent cellulose material. Regardless of the source material for ethanol, Aeroglide can take the wet cake and syrup streams and dry them down to provide a high quality finished product. In the case of DDGS, the final dried product provides a high protein feed ingredient. Aeroglide’s rotary dryers and coolers are the choice for high throughput capacity on these products. Single pass and three pass configurations are available. Heating options include steam, gas, oil, thermal oil or biomass burner system.
Aeroglide has been a manufacturer of rotary drying and cooling equipment for over four decades, providing drying systems for brewers grains, distillers grains and grain by-products since 1971. As suppliers to the pet food and feed industries, we offer extensive process knowledge associated with the nutritional (protein) values and use in the final product.
Dryers for Biomass Processing
Aeroglide dryers can be designed for feedstocks from specifically harvested biomass, wood, pulp, and recycled/waste materials. Each of these systems is capable of utilizing multiple heat sources including direct-fired biomass burners, low pressure steam, or waste heat utilization from power generation or other allied processes.
Aeroglide's conveyor drying technology takes advantage of extremely low thermal driving force to utilize low calorific value energy streams from CHP units or emissions handling equipment. These low temperatures drive the energy efficiency of the driers to their highest levels – while minimizing Volatile Organic Compounds (VOCs) or other undesirable plant emissions.
With many installations worldwide, our technology partners include a wide range of industry leaders. We have also partnered with major engineering firms to make integration of our equipment into their production line(s) as seamless as possible.
Applications
Rotary driers are used to dry the wet products, such as DDGS, or cellulose products like wood chips or sawdust to a stable final moisture content. Mixing screws can blend incoming product with dried material or syrups when required to provide optimum handling conditions. Aeroglide rotary coolers are used for final cooling or tempering of the dried product prior to storage or loading.
Conveyor driers are suited for a wide range of material, which requires high throughputs with low temperatures of operation or long retention time requirements. These are eminently suited for energy recovery systems in biomass drying facilities. This technology has been successfully deployed with harvested organic materials, such as wood or cellulosic feed stocks as well as recovered waste streams. End products can be pelletized for direct combustion, or further processed for cellulosic ethanol, gasification or torrefaction.
Dryers for Ethanol Production