“Technological Systems and Complexes” offer technologies which can be applied at productions with gas purification systems where gas is purified from contaminants and foul-smelling substances including mercaptans and hydrogen sulfide. These technologies allow to carry out a more efficient purification of gases, decompounding complex organic compounds into simpler ones, and also to educe molecular sulphur from sulphides and deposit it on cold surfaces.
Both technologies are based on heating void structures to high temperatures. One can carry gases and water steam through a heated void structure while adjusting temperature to 1 100- 1 200°С under atmospheric pressure. A special feature of our equipment is that it consumes solely electric power to superheat gases. Fast response time of the developed units allows to execute adaptive control of the process at the time of changing composition of gas components thus providing a required stoichiometric balance of carried out reactions and temperature of the process. Another special feature of our equipment is its small size that enables to built it into already existing technological lines.
Present conventional technologies of gas and water steam superheating up to high temperatures under atmospheric pressure, compared to our technologies, are based on either fluid fuel burning or natural gas burning in heat exchangers. However, the highest temperatures, at which one can practically heat steam and gases in this case, do not exceed 500- 600°С. Moreover, the traditional equipment has big size and weight. Thus far, these characteristics have not allowed to use superheated steam in the technologies of gas purification.
Brief description of the offered technologies:
Technology #1 – Steam conversion of contaminant gasious substances. Water steam with temperatures of over 500 °С demonstrates active chemical properties. With present superheated steam, organic compounds are decompounded into simpler components. Our equipment allows to accompish adaptive control of the process while changing componental gas composition. We can regulate both a required flow of steam and its temperature in the range from 200 to 1 200 °С thus providing a necessary stoichiometric balance of the chemical reactions. Obtained superheated steam can be carried both into furnaces, where contaminant gases are burned, and into heated gases coming out of the furnaces.
Technology #2 – Thermal decomposition (afterburn) on the void heated structure. After burning in furnaces, gases still contain contaminants. Our technology is based on additional gas heating on the void structure. The void structure is installed in the gas emission pipe and is heated to high temperatures (500- 1 100 °С). The void structure has a big surface area, which provides a uniform heating and a powerful concitation of the passing gases as well as their decomposition. Our units can be set directly by a gas burning furnace. As the gases that leave the furnace are hot, their additional heating does not require significant energy costs.
The advantages of these technologies are the facts that they can be used as independent gas purification technologies and also integrated into already existing constructions for final purification. Besides that, these technologies can be combined with one another. Seeing that the equipment is compact and scalable, one can build on its basis both centralized and distributed purification systems for industrial gas emissions.