To meet increasingly rigorous environmental protection rules, modern, efficient and long-lasting plants are needed. For this purpose Allianz Nefteproduct and its partners supplies individual solutions, which comply with ecological specifications and are economically as well as energy efficient. Allianz Nefteproduct and its partners plans modern, state-of-the-art technologies for wet or dry ash as well as for slag/slurry; we plant assembly and transport installations either as a new installation or as reconstruction, upgrade and supplement for existing power plants. Many years of experience and references in the fields of ash and slag-/ slurry disposal enable us to reconstruct your plant, upgrade it or supplement it with components to boost its efficiency.
Basically three systems with typically corresponding components are provided for the transport of combustion residue (ash particles):
Allianz Nefteproduct and its partners possesses many years`of experience in numerous international projects and state-of-the-art technologies in the field of flue gas desulphurisation (FGD). According to our customer´s request we provide all components from the actual flue gas desulphurisation plant to conveying and storing technology for the accumulating gypsum. Besides state-of-the-art technology in desulphurisation Allianz Nefteproduct and its partners offers corresponding gypsum dewatering plants.
Efficiently operating filter installations are necessary for power plants to meet the latest strict environmental protection regulations. Allianz Nefteproduct and its partners designs and supplies flue gas desulphurization plants and electrostatic filters for the reduction of ash emission either as new installations or - in the case of existing power plants - as reconstruction, equipment and supplementary installations. Allianz Nefteproduct and its partners also supplies complete silo facilities including loading station and offers economical and effective solutions for every application.
Flue gas desulphurisation processes can be realized as dry, additive and wet processes. The wet process is often preferred because of its high degree of separation rate of nearly 100 %. In the preferred wet process, acid and hazardous substances of the flue gas are deposited using a limestone containing suspension. The flue gases are mixed with this fine suspension in an absorber, cooled down and saturated with water steam. The sulphur dioxide reacts together with the calcium of the limestone to calcium sulphate (gypsum). The purified gas is directed by a chimney into the atmosphere.
Using our flue gas desulphurisation technology, all emission limits, which can be affected with this process, are kept or even considerably under-run. Limestone is especially usable, effective for the use in flue gas desulphurization, because of its natural origin and its further use. The generated gypsum is of high-purity, hygienically compatible and is increasingly used in the cement- and gypsum building materials industry.
The calcium sulphite, which is primarily generated in the absorber stage of the flue gas desulphurisation (FGD), is oxidized with oxygen from the flue gas and air is additionally injected into the calcium sulphate dihydrate (gypsum).
Depending on the plant design, the suspension containing more or less calcium chloride is firstly thickened via a separation plant – (hydrocyclones). Afterwards, the gypsum is dewatered in the downstream vacuum belt filter installation. If required, the remaining chloride can be washed out of the gypsum, which can be used as a valuable by-product for the building materials industry.
For the flue gas desulphurisation – gypsum dewatering, Allianz Nefteproduct and its partners supplies vacuum band filters for dewatering. The gypsum suspension is dewatered by means of a hydrocyclone band filter separation stage and - if required - washed, then via belt conveyors transported to a gypsum silo or a gypsum deposit. Continuously working vacuum belt filters prossess a high availability and reliability. Besides this the vacuum belt filters provide a residual moisture from the FGD-gypsum of less than 10 % without any difficulty.
Collaborating with Allianz Nefteprodukt means working with some of most efficient and organized marketers in the industry. Their flexibility and quick turnaround makes them a highly valued partner. Allianz Nefteprodukt has been a great partner to us. They are always open for bold trials and suggestions, be it new models, geos or offers. Being so open minded and keeping us in line with their strategy has allowed us to be significant pillars to each other’s growth.