HomeProjectsDevelopmentsPublicationsContact Us
Search with Google

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

Regenerative heat to mechanical energy converter with a dense working fluid  


Isobaric expansion machines as heat driven pumps, compressors and heat-to-electricity converters

The isobaric expansion (IE) engine is a novel, simple, cost-effective and efficient machine for the conversion of low- and medium-grade heat (60C and higher) to mechanical energy or electricity. Generally, the engine is a direct heat-driven pump producing a pressurized flow of liquid i.e. hydraulic power output. In this form, it can be used as an alternative to today’s electricity-driven pumps.

The hydraulic output can also be converted to shaft power and electricity, turning the machine into a power generator with power up to several MW.

Download the brochure:
Isobaric expansion machines as heat driven pumps, compressors and heat-to-electricity converters

(PDF: 368KB)

Download our concept paper in the journal Energies 2018, 11:
Isobaric expansion machines as heat driven pumps, compressors and heat-to-electricity converters

(PDF: 4 315KB)

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)
Publications: Read all our scientific research articlesLatest Company News

Our Download Center

Publications: Read all our scientific research articles

Maxim Glushenkov, Alexander Kronberg, Torben Knoke and Eugeny Y. Kenig. Energies 2018, 11(1), 154.

Latest Company News

01-04-2018 CHESTER project

From April 1, 2018 Encontech is involved in EU project "Compressed heat energy storage for energy from renewable sources" – CHESTER.