Petroleum coke fired CFB boilers
Petcoke is not just a refinery’s by-product any more, but a real alternative cost effective fuel that can be successfully fired in CFB boilers either alone or in blends with coal.
With its specific ash content, which is typically lower than 1 percent and very high sulfur, petcoke is an effective source of energy increasing plant economy. ZG CFB technology allows efficient combustion of petroleum coke. Numerous references are located mostly in United States or China reaching utility capacities of 300 MWe with the first commercial application dating back to 1984.
In spite of high sulfur content of the fuel reaching up to 8 percent the environmental performance of the units is excellent allowing to achieve low emission limits without external DeSOx and DeNOx installations. To meet the customer’s specific requirements the design allowed the usage of the local limestone or co-firing of heavy oil together with petcoke. Studying the potential of alternative fuels such as petcoke fired CFB boiler technology appears to be the perfect solution since in many cases fuel flexibility may be a decisive factor in a plant’s economy and feasibility of new projects.
ZG petroleum coke fired boiler CFB technology
Fuel is burned as it mixes with other materials, mostly limestone in case of petcoke firing and ash if coal is present, in an upward flow of combustion air. Because of high turbulent and excellent mixing sorbents, air and fluidized material in the furnace it is possible to achieve a uniform temperature throughout the furnace chamber and long residue time of fuel particles. Combustion efficiency is increased by CFB solid separators. Fluidized material and unburnt fuel go out of the furnace to separators and return to the lower part of furnace. In this part of combustion chamber the limestone is fed as a sulfur sorbent. Furnace temperature is kept in a suitable range of 850 – 950°C. The main features showing advantages for utilities to use CFB technology:
1.High combustion efficiency: long solids residue time in the furnace relatively low furnace temperatures are below the ash softening temperature due to excellent fluidization and recirculation of fuel with bed material the opportunity of burning up particles of fuel is remarkable
2. Excellent combustion stability over a wide boiler load range
3.Relative low concern of low-melting temperature Vanadium and Nickel compounds
4.Fuel flexibility: The opportunity to fire a mixture of fuels (a good ash analysis of fuels is required )
5.Very low emissions
Utility Scale Boilers Coal and Petroleum coke fuel flexibility
The design of large CFB boilers in the range of 300 MW is supported by ZG’s extensive experience with large suspension-fired utility boilers and by ZG’s extensive CFB experience base. ZG’s CFB process and proven design features best meet the challenge of utility CFB boilers.
Below pic is ZG 75t CFB boiler sale to Indonesia.
Project 75ton CFB is capable of removing over 98% of the sulfur dioxide and still improving the overall economics and environmental performance. It is equipped with a polishing scrubber employed to minimize reagent consumption while firing petcoke containing up to 8.0% sulfur. The relatively low furnace operating temperature of about 900 ºC results in lower nitrogen oxide emissions compared to conventional coal-fired power plants. However, the project includes a new selective non-catalytic reduction system to further reduce emissions of nitrogen oxides.
The petroleum coke fired CFB boilers technology selection allowed the investors to utilize local fuel or sorbent sources significantly lowering the . operational cost of the plants. Petcoke-fired boilers typically have a multi-fuel design where a blend of coal and petroleum coke may vary in different proportions.
Circulating fluidised bed Boiler Cases
ZG Boiler Workshop
Why choose ZG Boiler as Petroleum coke fired CFB boilers manufacturer
We have over 70 years' experience of boiler and autoclave, and we have a professional installation and after-sales staff for products.Take advantage of the most economical way to improve efficiency and operating flexibility, Get substantial savings on your fuel costs,Reduce all emissions for each K/W of electricity generated, including CO2.
How about the quality of Petroleum coke fired CFB boilers ?
Our Petroleum coke fired CFB boilers manufactured strictly according to national and international standard. our products have approved ASME, IBR, ISO9001-2008, etc
All our company's products are 100% factory inspected to ensure the high quality.
We provide one year quality warranty service, please rest assured purchase.
Basic Information of CFB Boiler manufacturer--- ZG Boiler
Number of Employees:above 1500 People
Our products:industrial horizontal steam boiler and hot water boiler(biomass boiler, gas boiler, oil boiler, coal boiler, etc), CFB boiler, power plant boiler, waste heating recovery boiler, Pressure Vessel(AAC autoclave, Curing tank,etc )
Factory Size (Sq.meters):400,000 square meters
Factory Location:Factory 1: Zhengzhou,,Henan, China. Factory 2: Xingyang,Henan,China
Number of R&D Staff:376 people
Our Trade & Market
Total Annual Sales Volume:US$100 Million
Main Market:South America(Colombia, Venezuela, Guyana, Suriname, Ecuador, Peru, Brazil, Bolivia, Chile, Paraguay, Uruguay, Argentina and French Guiana),
North America(Bahamas, Canada, Costa Rica, Cuba, El Salvador, Guatemala, Honduras, Haiti, Jamaica, Mexico, Nicaragua, Panama),
Eastern Asia(Mongolia / Russia / North Korea / South Korea / Japan),
Oceania(Australia, New Zealand, Fiji),
Mid East(Bahrain, Egypt, Iran, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Qatar, Saudi Arabia, Syria, UAE and Yemen, Palestine, Algeria, Libya, Morocco, Tunisia and Sudan, Mauritania and Somalia),
Africa(Egypt, Sudan, Libya, Tunisia, Algeria, Morocco, Ethiopia, Somalia, Kenya, Tanzania, Sierra Leone, Liberia, Cote d'Ivoire, Ghana, Togo, Niger, Nigeria, Cameroon, Gabon, Congo (Brazzaville), Zambia, Zimbabwe, Angola, Mozambique, Botswana, Namibia, South Africa),
South Asia(Nepal, Bhutan, India, Pakistan, Bangladesh, Sri Lanka, Maldives)
Southeast Asia(Vietnam, Laos, Cambodia, Thailand, Myanmar, Malaysia, Singapore, Indonesia, Brunei, the Philippines, East Timor)