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Novel Developments. Liquid compression chemical reactors. Heat-to-electricity converters

Regenerative heat to mechanical energy converter with a dense working fluid  


Regenerative heat to mechanical energy converter with a dense working fluid

Regenerative heat to mechanical energy converter with a dense working fluid is a simple and economical alternative to state-of-the-art types of heat engines in power range up to several MW. Being an external combustion engine the converter can use heat of any grade and origination – from heat of combustion of fossil and bio fuels, solar energy to a low grade heat sources typical of Organic Rankine Cycle (ORC) engines.

Various safe and environmentally friendly liquid working fluids such as water or carbon dioxide can be used in the engine. The engine is noiseless. The operation of the engine is based on a unique cycle having the same efficiency as Carnot cycle and very simple, reliable and inexpensive design. As a result cost per kW of the engine is much lower compared with that for contemporary internal combustion, Stirling and Rankine engines.

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Novel heat to mechanical energy converter

(PDF: 636KB)

Liquid compression chemical reactor  


Liquid compression reactors are novel types of multifunctional chemical reactors in which high pressures and temperatures are generated during a transient compression of a feed by a liquid directly in the reactor. During the following expansion the most energy spent on the compression is recovered whereas the dissipated energy remains in the process inside the liquid. Depending on rate of the compression-expansion cycle the process can be almost isothermal or adiabatic.

The liquid compression reactors can be used for high pressure processes - polymerization, hydrogenation, hydroformylation etc. They can also process “difficult” feeds such as coal powder and slurries, oil residues, shales or sands, biomass and biomass derived liquids and industrial wastes.

Fisher-Tropsch (FT) or methanol/DME synthesis might be promising applications of the reactors. For these processes the reactors permit to use a low pressure, low quality synthesis gas produced for instance by air-blown gasification of all solid feedstocks from coal to wastes, or by air-blown reforming of natural gas. Moreover it is expected that the compression-expansion reactor cycle can reduce a proportion of heavy hydrocarbons in the FT products or eliminate them completely. All this can make economical small- and medium-size production of synthetic fuels.

Download the brochure:
Liquid compression chemical reactors

(PDF: 665KB)
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Maxim Glushenkov, Martin Sprenkeler, Alexander Kronberg, Valeriy Kirillov. Applied Energy 97, 2012.

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