The purpose of the project is to develop and implement a new technology for water chemical treatment in energy systems in the power industry.
The idea of water conditioning consists of the continuous addition of a protective formulation into boiler feed water. The new type boilers used in various energy systems are operated under high heat load and such conditions
determine the specifics of appropriate water preparation. Water quality determines heat exchange efficiency and the performance economics of energy systems. The technologies used for the preparation of boiler feed water are based on the addition of hydrazine and phosphates. They are aimed at reduction of corrosion, however their disadvantage is that they increase the salinity of boiler water and thus enhance the formation of deposits on the internal heat exchange surfaces.
The introduction of multi-functional amine formulations has partly eliminated those problems by improving heat exchange in the boiling and condensation processes, reducing operating deposits and decreasing corrosion and erosion.
However, polyamines used so far in formulations are characterized by their limited thermal resistance, and decomposition starts at about 300 degrees C. Thus considerably large amounts of formulations have to be used to build and renew the protective polyamine film. Moreover, the decomposition of polyamines into short amines and ammonia creates problems in maintaining the right pH value, especially in superheated steam and condensate.
The application of this new technology for the chemical treatment of boiler water, based on thermostable amines would be a breakthrough in boiler water conditioning in energy systems in the power industry. The principle advantage is exceptional protection against corrosion and deposit formation. The new technology will be competitive both in economic and ecological aspects, offering a considerable improvement of water quality and a reduction in the consumption of raw materials, thus decreasing contaminant emissions into the environment. Moreover, the application of the new technology will result in high efficiency in boiler performance and prolong the life of the equipment.
The aim is to develop and commercialize the new technology for boiler water chemical treatment in the power industry.
The 'BLACHOWNIA' INSTITUTE OF HEAVY ORGANIC SYNTHESIS
(ICSO) already has broad experience in boiler water conditioning in the power industry using amine-corrected formulations, acquired during the execution of earlier projects co-financed by the POLISH STATE COMMITTEE FOR SCIENTIFIC RESEARCH.
The achievements of ROHM AND HAAS company in amines are the guarantee of quality of thermostable, high-molecular amines of the PRIMENE type, which will form the basis for the new correction formulations.
The project will include:
* research work to draw up and produce information batches of new formulations for tests
* drawing up of standard analytical procedures for amine content in water, steam and condensate
* research work to determine the influence of the new technology on the improvement of heat transfer coefficients
* industrial application tests carried out in the chosen power plants, thermal-electric power stations and heat-generating plants with various types of boilers
* systematic collection of data on corrosion rate in water-steam circulation and operating deposits formation in boilers
* evaluation of results
* marketing and promotion activities to disseminate information and expand the application of the new technology to the European power industry, including publications, participation at conferences and the creation of a web site.
In order to execute the project and achieve the goal, ICSO (POLAND) and ROHM AND HAAS (FRANCE) will cooperate closely with several partners, representing different organizations and having the necessary expertise to perform the particular tasks outlined above.
ICSO will be responsible for the co-ordination of the project and the new water conditioning technology. ROHM AND HAAS will develop and modify the appropriate,
thermostable amines of the PRIMENE type. Both ICSO and ROHM AND HAAS will develop the new formulations for water conditioning.
The LITHUANIAN ENERGY INSTITUTE will execute the following tasks:
* Determination of behaviour of amines under temperature and pressure over time.
* Investigation of the influence of high temperature resistant amines on the corrosion process of pipe steels.
The influence of the new technology on heat exchange will be evaluated in co-operation with the INSTITUTE OF CHEMICAL ENGINEERING of THE POLISH ACADEMY OF SCIENCES - a subcontractor that will perform research works to determine the coefficients of heat exchange during boiling and condensation processes. The analytical determinations and development of standard procedures will be done in ICSO and at the FACHHOCHSCHULE BONN-RHEIN-SIEG (GERMANY).
Application tests will be carried out under various conditions and using various types of boiler. The anticipated industrial partners are:
* ZPBE ENERGOPOMIAR in Gliwice (POLAND) and
* EKOCHEM PUB in Pyskowice (POLAND) both co-operating with ICSO as subcontractors.
The expected result of this project will be the commercialization of the new technology for boiler water chemical treatment in energy systems and implementation of the production of new correction formulations.
In addition to all the technical, environmental and economic benefits from the execution of the project in the framework of the EUREKA Initiative, it will contribute to integration between various European enterprises, and research and industry. The success of the project requires close co-operation between different European organisations representing scientists, manufacturers and end-users.
EUREKA is an open initiative and we will welcome partners from European countries, especially to perform application tests and then implement the new technology.
INCD-ICEMENERG - ROMANIAwill join the project in 2003 and will undertake the following tasks:
* Laboratory testing for evaluation of corrosion speed and deposits formation in boiler water;
* Metalographical analysis in the specific conditions of metal samples from the boiler materials;
* Implementation of the new technology in ROMANIA.
Thus the implementation phase in ROMANIA will extend the project. The new formulation will be commercialised in POLAND in 2003, and possibly also in LITHUANIA in 2003. Implementation in ROMANIA is predicted for 2005.
Keywords: amines, technology, boiler water.