Abstract: Disclosed herein is a system for automatically cleaning boiler pipes, which includes a pipe-cleaning tank provided on one side of a casing to store a cleaning solution therein and a tank supply valve provided in the pipe-cleaning tank, so as to allow the cleaning solution stored in the pipe-cleaning tank to automatically flow into a heat exchanger and various pipes inside the casing by means of only a simple operation of manipulating the tank supply valve, thereby making it easy to eliminate scale that has accumulated in the heat exchanger and the pipes.

Abstract: The present invention relates to a process for hydrolysis of acetone cyanohydrin (ACH) by means of sulphuric acid within the ACH sulpho process for preparation of methacrylic acid (MAA) or methyl methacrylate (MMA).

Abstract: Heat exchanger for thermo boiler 1 with a tube bundle 6 using solid fuel in particles constituted from an inner furnace 7 and a double wall jacket connected from the tube bundle 6 characterized by the fact that space 14 over the inner furnace 7 and the tube bundle 6 is divided from a slab 13, that tubes 6 which cross said slab 13 in openings 15 are rigidly fixed to said slab 13, that at least a bar 10, 11 which can be controlled from outside crosses the slab 13 and the double wall jacket 20 on at least one side, that said bar/s 10, 11 bring/s at least two scraping plates 8 and 9, of which an at least intermediate one positioned on one side of said slab 13 and at least an other one from the opposite part of slab 13, of which at least one positioned at the end of tubes 6.

Abstract: The present invention is a system and method for generating a mixture of steam and combustion gas in a direct contact rotating steam generator, using high solids content water, and without waste liquid discharge. The invention includes removing the solids with controllable water content in a stackable form. The system includes a longitudinally rotatable and controlled pressure enclosure being mounted at a slope and having a steam producing section, a water injection section and a discharge section. The enclosure can include a mixing and mobilizing rotating element to enhance the mixture and the heat transfer. The system can have an additional wet section to scrub contaminates and produce saturated steam. The system can be integrated with an enhanced oil recovery facility or with an open mine oil facility that generates non-segregate tailings to consume their discharge liquid waste and generate steam, heat and a stable solids waste.

Abstract: The present invention is a system for generating a mixture of steam and combustion gas in a direct contact rotating steam generator, using high solids content water and without waste liquid discharge. The invention includes a longitudinally pressurized rotatable drum, being mounted at a slope and having an energy injection section, a steam producing section, a water injection section and a discharge section. The discharge section is placed at an opposite end of the steam producing section and opposite the water injection section. There is an inlet in the combustion section of the rotatable drum, an outlet at an end of the rotatable drum, an injector for water at the highest point of the rotatable drum. There is also a discharge located at an end opposite said end of the rotatable drum. There are also pluralities of chains hanging within the rotatable drum.

Abstract: The present invention is an apparatus and method for producing a steam and CO2 mixture, as a super heated dry steam mixture. The apparatus includes a rotatable vessel having a combustion section and a steam producing section. There may also be a dry solid removal, a steam production and solid scrubbing vertical vessel, and a heat exchanger. The vessel is partially filled with spherical bodies, and the sections are partially separated by a partition. A discharge section is located at an end of the steam producing section. A homogenizing section has at least one partition wall guiding flow of gases. The process for producing the steam mixture includes mixing a low quality fuel with an oxidation gas, combusting in a rotating drum filled with spherical bodies, and mixing low quality water with a controlled temperature to generate steam. All liquids convert to gas so that there is no liquid discharge.

Abstract: A water heater for heating water containing particulates comprises a recirculating path responsive to water and particulates in the heater. The recirculating path removes particulates from the water flowing therein and returns water with particulates removed from it to the heater. The path includes a particulate filter for removing particulates from the water flowing in the path and a pump for pumping water in the path back into the heater. The path is responsive to a liquid cleaning agent applied to the heater with the water returned to the heater.