CAS at Coal Ash Asia 2017

- Baotou, Inner Mongolia

For the third year in a row, the Asian Coal Ash Association will be welcoming Coal Ash Solutions as the Business Matching Sponsors for this year’s Coal Ash Asia. The 3 day event will take place July 21-24 in Baotou, Inner Mongolia at the Shangri La Hotel

Coal Ash Solutions will be supporting international exchange by providing facilitation, introductions and translation of multiple meetings for each international delegate. Attendees will be able to request assistance with scheduling meetings as well as personal consultation on who would match best with their interests. Each attendee will receive a full contact list, included with each registration.

Business Matching will be available operating parallel to other Coal Ash Asia components including: oral presentations, poster exhibition, products and services exhibition and academic matching. We are delighted to be working with CAS. Our sponsors have facilitated over 70 successful meetings during our 2015 and 2016 events, and are looking forward to helping create meaningful exchange in 2017.

Click here to register for Coal Ash Asia and learn more about how Business Matching at this year’s event can work for you.

Sustainability Through CSA Cement

- Malaysia

Sustainability is simply the ability to meet the demands of today without negatively impacting the future. This goal is not easily met, especially in the construction industry. With demands for building materials on the rise in places like Malaysia and Vietnam, companies scramble to provide quality building materials such as concrete, cement, ceramic, etc, while still adhering to ever tightening restrictions on emission and waste disposal. Switching unfriendly environmental practices to a more efficient infrastructure of Building materials manufacturers providing suitable coal ash byproducts from local power station waste is not yet common practice. As legislative reform takes its time, researchers are attacking the problem of reusing industrial waste from all angles.

CSA (Calcium Sulfoaluminate) cement is another approach at reducing energy to produce environmentally friendlier cement.  Calcium Sulfoaluminate requires lower heating temperatures to produce. CSA is composed of a mixture of bauxite, limestone and gypsum and burning these at lower temperatures emits representatively lower amounts of carbon dioxide into the atmosphere. Also, the amount of limestone needed is much less. Limestone is said to be one of the key emitters of carbon dioxide in the sintering process. Using less materials and less energy is not only better for the environment, but more appealing to building materials manufacturers.

Dr. Tom Robl, Associate Director, Environmental & Coal Technologies at University of Kentucky’s Center for Applied Energy Research will be presenting the latest research and discussing CSA cement at the upcoming Coal Ash Asia. To join Tom at this year’s event please register by Clicking Here!

Who Will Be At World of Coal Ash 2017?

- Lexington Kentucky

AsianCAA will attend its 3rd World of Coal Ash conference, this May 8-11 in Lexington Kentucky. Mr. David Harris, Chairman of the association will be presenting during the Shortcourse portion of the event, sharing an international perspective on Asian suppliers meeting global demands. Mr. Harris serves as advisor to power generators, construction material manufacturers and municipalities in Asia. Keep reading for presentation times and locations.

Hongli Recycling

A subsidiary of Datong Coal Mine Group will be bringing a small delegation of representatives to share their unique jet steam milling technology. The jet steam facility is the largest in China with an annual output of 100,000 tons of ultrafine industrial minerals.

Institute of Technical Information for the Building Materials Industry (ITIBMI)

Our co-hosts of Coal Ash Asia and academic matching partner for this year’s Coal Ash Asia event, July 21-24 will be attending WOCA this May. The Institute of Technical Information for Building Materials Industry of China was founded in 1958 and is managed by the China Building Material Industry Association (CBMA). ITIBMI is dedicated to research on cement, glass, ceramics, new building materials and non-ferrous metal, and has publications particularly on cement itself and the building material industry. The institute is one of the key organizations working on cement technologies and materials in China, with direct relevance to energy efficiency.

Come visit AsianCAA and our members at World of Coal Ash:

Asian Coal Ash Association Booth: #94, Exhibition Room. Lexington Convention Center

Bill Martin Presentation: "Superheated Steam Jet Milling" Wednesday May 10th, 4:30pm Regency Ballroom 2, Session 6, Presentation #261

David Harris Shortcourse Presentation: "Can Asian Suppliers Meet Global Demand?" Monday, May 8, 3:30pm - 4:00pm Lexington Convention Center

Want to know who else will be exhibiting at World of Coal Ash?

Click here to see the list of 2017 exhibitors.

AsianCAA Participation at Asia Pacific Conclave

-Kolkata, India

The Asian Coal Ash Association would like to thank the Coal Ash Institute of India for welcoming our Chinese delegation of industry leaders to the Asia Pacific Conclave in Kolkata this past week. The event focused on dry extraction and effective utilization of bottom ash during two days of seminars and presentations. Multiple networking opportunities allowed for the Chinese delegation to connect with other industry leaders. The delegation consisted of individuals from the Institute for Technical Information for the Building Materials Industry in Beijing,  Weifang ALPA Powder Technology & Equipment Co.,Ltd and Shangdng Pingyi Kaiyuan New Building Materials Co., Ltd.

“The delegation learned a lot this trip and were able to experience a different culture, and learn and share different approaches and technologies to local industries”, Mr. Jack Yuan, Engineer from Institute for Technical Information for the Building Materials Industry says of his experience at the 2017 Asia Pacific Conclave. Mr. Yuan and his colleagues know all too well the similarities and differences of the coal ash/bottom ash industries in India and China. The focus on this year’s China delegation was primarily to sell ash handling equipment, as explored in two presentations by our delegates Mr. Li Yushan, and Mr. Jia Wenhao attending from our previously mentioned Shanngdong Pingyi Kaiyuan, and Weifang ALPA powder companies.

AsianCAA Chairman, David Harris also addressed conference goers and provided an interview for local media concerning circular economy and looking to long term planning to solve India's shortages. See post image for interview. Materials will be published once they become available.

AsianCAA looks forward to welcoming the Coal Ash Institute of India to our annual Coal Ash Asia event this July 21st – 24th in Baotou, Inner Mongolia. 

Technological Advances in Coal Combustion Products and Emissions: Dry Extraction and Effective Utilization

Kolkata- India

In India the main source of fuel, as in the rest of the world, continues to be coal. Correspondingly, as research and innovation endure, coal combustion products continue to increase in utilization in a competitive world facing mineral shortages.

India is known to have some of the dirtiest coal in the world, with high ash outputs. According to the latest report of the Central Electricity authority, between April and September 2015, 132 thermal power plants (TPPs) of 58 Utility Companies having an installed capacity of 130,428 MW consumed 251.69 million tons of coal with an average ash content of 33.23%. This led to generation of 83.64 million tons of coal ash, out of which only 46.87 million tons (or 56.04%) was gainfully utilized.

The consensus in India, as well as China, another top consumer of coal is this: the infrastructure transformation from coal energy to newer energy including solar and wind will take at least three more decades to create. In the mean time, bridging the gap between generation and utilization of coal ash and cleaning coal before combustion continues to be the current agenda.

As coal ash is broken down into two parts, bottom ash that takes up approximately 20%, and fly ash, the more widely used fly ash at 80% of all ash output.

Current common wet extraction practices of bottom ash are now making way for newer dry practices where the cost and inefficiencies of having to dry the ash before use are no longer hindrances to change in infrastructure. Equipment manufacturers in India and China are beginning to implement new machinery that is able to extract, cool and convey the ash in a dry state. Systems like Magaldi’s MAC Ash Cooler, Qingdao Songling’s DAP Dry Ash Processor, Clyde Bergemann’s DRYCON , United Conveyor Corporation’s VAX Vibratory Ash Extraction, etc. are operational worldwide but with limited appearance in the Indian TPPs.

This year’s Asia-Pacific Conclave has therefore chosen the dry extraction and effective utilization of bottom ash as the primary focus area. The Conclave will take place March 17-18 in Kolkata, India. The Conclave will focus on the above mentioned topics as well as hazardous emissions. Legislation as recent as December 2015 in India is targeting the cleaning of coal through emissions. The notification states that as of January 2017, emission norms must be as follows :

Particulate Matter 30mg/Nm3; SO2 100mg/Nm3; NOx 100 mg/Nm3 and Hg 0.03mg/Nm3. In fact, the PM, SOx and NOx values in the new plants are prescribed to be substantially lower than the existing units, for which the PM, SOx and NOx limits are 100, 600 and 600 mg/Nm3 respectively.

The Conclave intends to deal with the best available technologies for emission control and lowering the amount of water required per megawatt of power generated.

AsianCAA will be bringing a delegation to support and help facilitate academic and commercial exchange at the upcoming Conclave.

Check out our upcoming events page to learn more!

 

 

Research & Application: Steam Jet Milling in China

Processing Ultrafine Solid Waste Using Industrial Waste Heat with Low-cost

 - Mianyang, Sichuan, China

Jet Grinding is the dry method to obtaining minimum particle size effectively, but the high-energy consumption and small capacity greatly limit wide application. Creators and processors of industrial waste need to adapt large scale, low cost measures of ultrafine processing in order to make adaptation fiscally possible. Steam jet milling adopts high temperature mechanical technology and uses hot steam as media for high-speed movement to perform material pulverization.

 Currently researching the differences in medias being emitted through jet steam nozzles is Professor Chen Haiyan from Southwest University of Science and Technology, Sichuan Province, China. In his research, he compares the outlet airflow velocity with the same nozzle under different medias. The results show that compared with the 30compressed air, the crushing strength of the nozzle’s core region improved by 3 times under 300 superheated steam. Other parts of the jet steam process that were examined were the large scale and annular compound nozzles, flow field of grinding chamber, turbine classifier under superheated steam, and superheated steam bag filter.

 In a 30,000t/ year production line of desulphurization ash in a Pingshuo powder plant, ultrafine circulating fluidized bed ash was prepared by LNSJ-350A type steam jet mill.  Using superheated steam with temperature of 250and inlet pressure of 0.25 MPa supplied by a power plant, the results showed that the average particle size of the ultrafine circulating fluidized bed ash was 8.999 μm. The yield of ultrafine circulating fluidized bed ash was 73t/h. Steam consumption showed at 21.7 t and electricity consumption was 3.76k W·h per ton.

The strength and soundness conform to national standard requirements when the products are blended by a mass fraction of 10% for formulating composite Portland cement with the strength grade of 32.5.When medium particle size of desulphurization ash was about 4.76μm, the activity index could reach to 107%, which can also satisfy the requirement of S95 slag.

Professor Haiyuan, a welcomed speaker at Coal Ash Asia 2016 and 2017, explores this research alongside his colleagues at SUST, in Mianyang, Sichuan. The University was founded in 1939, and has over 29,000 students in enrolled. The campus was originally the Mianyang branch of Tsinghua University. Tsinghua University, another CAA2017 attendee, is another catalyst research facility for waste management and sustainability in China.

Hot Topic: Alumina Extraction from Fly Ash

Baotou, Inner Mongolia

Aluminium is widely used in transportation, packaging and building materials sectors, due to its resistance to corrosion.  Alumina can be found in coal deposits all over the world including the US, India and China, the top three producers. Aluminium extraction however, is not a common practice in coal-fired power stations, as many struggle to justify the costs and energy costs. Inefficient systems have caused an obstacle for industry wide adaptation.

At this year’s Coal Ash Asia, in Baotou, Inner Mongolia, July 21-24, Industry professionals and researchers from around the globe will meet to discuss and share knowledge on Alumina Extraction. Discussions will explore energy and cost efficient extraction technologies, as well as international and domestic overviews from participating countries in our International Panel session.   

Our annual industrial tour will take place at Datang International Renewable Resources Development Co., Ltd. The holding company, Datang Group is a “big five” power company in China. The company is operating the first and only commercial project of Alumina Extraction of Fly ash in China, with production capacity of 200 000 tons/a Alumina, and producing paper and building materials products. Among these by-products are cement and calcium silicate board.

China universities, including the China Building Materials Academy in Beijing, lead in research pertaining to fly and bottom ash a processing and utilization. Feedback from the international community from Coal Ash Asia 2016 supported notions that China is year’s ahead in terms clean energy technology.

Processing and treating ash from coal fired power stations to the building materials industry is new to countries like Ukraine. “ The only industry that uses fly ash in Ukraine is the cement industry, with no processing or treatment, we simply feed what we get from the power station to the plant,” Andrey Garanin, business development manager from United Minerals Group (UMG) in Ukraine. Mr. Garanin attended CAA2016 to explore alternative applications for ash. After a visit to CAA’s annual industrial tour in Shuozhou, Mr. Garanin cited that there are many possibilities for effective adaptation in Ukrainian markets for Chinese tech. “China could help guide Ukraine to clean, energy efficient building materials. The infrastructure is unlike anything we’ve seen in Eastern Europe.”

Check out our introduction page to find our more about Coal Ash Asia 2017, who else will be joining us, and what other tracks we will cover at this year’s event.

Read the Wood Mackenzie report on alumina extraction!  (click here)

 

Coal Ash Institute of India: Newest Member of WWCCPN

Kolkata, India

AsianCAA welcomes the membership and participation of the Coal Ash Institute of India (CAII) to the World Wide Coal Combustion Products Network. The induction took place in December 2016. “We are very pleased to be working with Dr. Chatterjee and his team to enhance collaboration and exchange across the region,” stated Mr. David Harris, Chairman of AsianCAA.

Coal Ash Institute of India’s mission is to promote eco-friendly and gainful use and management of coal ash generated from thermal power plants. They support technical research and host meaningful exchanges regarding coal ash research concerning utilization and production in India. CAII will be hosting the third Asia-Pacific Conclave this March 17-19, at the Hotel Pride Plaza in Rajarhat, Kolkata. The conclave will address dry extraction and effective utilization of bottom ash. It will also cover technological advances in other coal combustion products and emissions in thermal power plants.

AsianCAA is planning a sizeable delegation in support of this conclave, and Mr. David Harris will be contributing an oral presentation on Coal Ash processing and utilization in China to the proceedings. For more information about this event, please view the event brochure,

Please visit our contact page to submit any inquiries about the upcoming event.

China and Australian Coal Combustion Products Exchange: Millmerran Power Station and Independent Fly Ash Brokers

- Brisbane, Australia

A Chinese delegation including academics, power plant professionals and coal combustion product consumers traveled to Brisbane, Sydney, Melbourne and Cairns on a twelve day visit to Australia. The program, led by David Harris, Chairman of the Asian Coal Ash Association, and Bill Martin, senior partner with Coal Ash Solutions, included visits to key construction material and building material laboratories and production facilities.  The coal combustion products exchange took place from November 19th – 30th. 

The first stop on the tour was a visit to Millmerran Power Station and the co-located fly ash and bottom ash processing facility owned and operated by Independent Fly Ash Brokers. Millmerran Power Station, located just west of Brisbane, is a 1000-megawatt coal mine mouth power station, using pulverized coal and producing 3000 tons of coal ash per year. An introduction to the power station was provided by manager Joel Rickuss. The Chinese delegation observed an overview Millmerran, which is of one of the most cost efficient power stations in Australia. This is partly due to being located next to the coal mine. However, Millmerran also recycles the municipal waste water from the nearby city of Toowomba, piping the water to the station for use in their cooling system. The station does not use standard cooling towers, but a radiator system that proves to be very cost effective and resource efficient in a region of Australia where water conservation is a top priority. 

Bottom ash from the power station is being used for road base, improving the quality of roads for the coal mining operation. The fly ash is being collected by Independant Fly ash Brokers (IFB), a company jointly owned by three regional construction materials companies.  Due to the large distance from the markets, only 20-30% of the fly ash is being beneficially utilised. The rest is being used to backfill the coal mine.

The Chinese delegation noticed the difference in safety protocols and in the organization of the power station.

Independent Fly Ash Brokers is a joint venture between Wagners, Neilsens and CaldwellsIFB has a fly ash processing facility that is co-located with Millmerran. IFB pumps dry ash to their classifiers and silos pneumatically. The tour was given by Peter Dennis, IFB's operations manager.

The degree of automation at the IFB facility is impressive. After being pneumatically conveyed from the power station, fly ash is classified and then stored in hoppers, ready to discharge into pneumatic tanker trucks. Drivers of the tanker trucks pull into the loading bay, underneath the hopper outlet. The driver parks the truck and then goes to the operator deck to connect the discharge pipe from the hopper to the inlet on the truck storage tank. The hopper is on a gantry and - in the case of a double tanker truck - can be moved automatically by the truck driver from one tank to the next without moving the truck. The computer system indicates when the volume of ash has reached the tank capacity and automatically shuts off the discharge. 

All of this is done at a single loading control unit and is efficiently designed as trucks do not need to move from station to station. The whole loading process is operated by the truck driver, reducing labour costs and chances for human error. 

The delegation was very impressed by the degree of automation, cleanliness, organisation, and the factory design.

The next visit on our itinerary was to Wagner's Geoploymer. Wagner’s three trading divisions - Wagners Concrete, Quarries and Transport include cement, flyash and lime, reinforcing steel, on site concrete supply, contract crushing and bulk transport, as well as lightweight composite fibre products. Please view the next post in our post SACCP exchange series, for more information on that visit.