Utilisation Trends: Coal Ash in Việt Nam

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- Việt Nam

The Department of Industrial Safety and Environment at the Ministry of Industry and Trade is currently addressing the country’s need to maximize the use of coal fly ash from local coal fired power stations. Deputy Director, Phạm Trọng Thực confirms that the two main issues of last year were the production of fly ash from thermal power plants and chemical fertilizer plants. 

Vietnamese power stations produce about thirteen million tonnes of fly ash and plaster per year, 65% of which comes from power generators in the north.  At the moment, according to the Ministry of Industry and Trade (MOIT), only 38.9% is being used as a raw material. The primary product utilizing coal fly ash in Viet Nam is gypsum boarding, used in civil construction.

The progressive policies for using coal ash from power plants and fertilizer plants to manufacture building material products have been enacted since 2014 nation wide. The goal of these initiatives was to help solve the big issue of disposal, and aid construction costs by offering a cheap alternative to sand and other filler aggregates.

VINACHEM (Việt Nam Chemical Group) is a good example of a company taking full advantage of these environmental regulations aimed at reducing landfilling of coal fly ash.  Cooperating with a local gypsum company, the group is able to produce 750,000 tonnes of cement per year, using coal ash as its base additive. The group has also recently expanded, building another cement plant that aims to produce 600,000 tonnes per year, with the same coal ash additive.

However, delay in industry adaptation has been linked to concerns with the problems associated with the use coal fly ash in construction materials. Taxing, as well as proper handling and utilization practices are among top concerns of manufacturers and legislators. MOIT has executed their newest initiative for safe handling and sourcing by reducing the importation of gypsum, as well as monitoring the exploitation of natural gypsum in the country. The MOIT will continue to work with the Việt Nam Chemical Group and other organizations like it to develop quality assurance criteria for construction projects and production of materials used in construction.

Coal Ash Asia Handbook 2018

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- Shuozhou City, Shanxi Province, China

The Asian Coal Ash Association proudly welcomes its members and following industry leaders to view our 2018 Coal Ash Asia Handbook. Coal Ash Asia is China’s premier coal ash handling, processing and utilization information exchange forum. China’s role in the coal ash industry is crucial, as it maintains the top spot for most coal consumed by a populous per year. We hosted our international event in Shuozhou City, China, and welcomed top researchers and commercial enterprises to share and explore leading research and technology. Our tracks included:

  1. Coal Ash Processing and High Value Utilization

  • Grinding, Classifying and Superfine grinding

  • Cement, Concrete, Wall Materials and Geopolymer

  • High Value Utilizations: Ceramics, Cenospheres, Fillers

  • Sulphoaluminate cement CalciumSulphoAluminate

      2. FGD Gypsum Utilization

  • Gypsum drying and Calcination

  • Construction Applications: gypsum block, board, mortar

  • Agricultural applications

  • High Strength Gypsum, etc

     3. Coal Gangue and Coal Chemical Residue

  • Processing and Utilization

     4. Metal Extraction

  • Alumina and other metal extraction best practices and methods

Please click below to download our 2018 Coal Ash Asia Handbook, with research from China’s top researchers in coal ash.

Want to join us in 2019? Register by clicking below!

Trung Hau Manufacturing: Watch Video on 100% Quality Sand from Fly Ash

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- Vietnam

Trung Hau Manufacturing Company (http://www.trunghau.com/english/index.html) would like to introduce our members to a new technology, which proposes to transform all landfill and excess fly ash being released from power thermal plants into useful materials (artificial sand - stones). This technology has the ability to work on most fly ash compositions. Please click on the video link to learn more about Trung Hau’s semi-dry geopolymer and how they create 100% industrial quality sand from fly ash.

The president of Trung Hau, Mr. Tran Nghia, and a strong delegation including Dr. Do Minh, were active participants at this year’s Coal Ash Asia 2018. Dr. Minh delivered an oral presentation and paper concerning his research on “Accelerating the Polymerization Process of Fly Ash By Microwave”. To read more about this research or other research from our September event, please request our CAA2018 handbook, with over 50 abstracts, by entering your email below.

If you would like to learn more about Trung Hau operations, or to contact our members, please contact AsianCAA staff for more information.




Coal Ash Asia 2018: A Recap

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-Shuozhou City, Shanxi Province, China

A big thank you to everyone who participated in our Coal Ash Asia 2018 proceedings in Shuozhou City, China, this past September 12-15th. This year's topics focused on the high-value utilization of fly ash, FGD gypsum and coal gangue as well as highlight applications in building material products (cement, concrete, geopolymers etc).

A special thank you to our international delegation (click organisation to visit website):

We would like to extend our humble gratitude to our friends at the China Building Materials Academy’s Institute of Technical Information for the Building Materials Industry, in Beijing. This year’s extension and construction of our annual products and services exhibition was our largest in Coal Ash Asia history, with over 50 exhibitors, and a welcome ceremony which included an orchestra playing on instruments made primarily from fly ash!  

New to this year’s proceedings was our Technology Symposium track geared towards new technologies in fly ash, which included discussion on fly ash based aggregates, fillers, and ceramic tiles. Contributors to this track included: Prof. Chang Jiqing from Guangdong Penghu Industrial Co., Ltd., Zhang Jingjie from Shanxi Hujin Coal Electricity New Material Co., Ltd., Ma Liantao from Hengyuan Waste Utilization, and Peter Ma from Shandong Wei Tong Technology Co., Ltd.

Another new feature was our meeting dedicated to new FGD gypsum technologies. Content included alpha high strength gypsum and calcination methods. Contributors included: Prof. Duan Pengxuan from Guilin University of Technology, Prof. Xiang Lan from Tsinghua University, and Li Yushan from Shandong Pingyi Kaiyuan New Building Material Co., Ltd.

This year also welcomes esteemed contributor, Mr. Bill Martin, who led engaged attendees in his workshop, “Fly Ash Use in Road and Embankment Construction”. Here, Mr. Martin led the discussion for industry experts, who explained real-world projects of American and Australian fly-ash in road projects. Also discussed were new technology and applications in road engineering. Attendees were able to openly discuss and compare methods and approaches to road construction, and receive technical explanations as to the process of applying road and embankment technology from start to finish.

We are excited to announce upcoming events and association/research developments in the new year. Please sign up for our newsletter to stay in touch!

 Here are a few pictures from CAA2018! An Album will be available under past events, in the coming weeks.

Want to Download the Conference program from CAA2018? You can find it on our CAA introduction page.

China Coal Combustion Product Conference: Technological Innovation to Promote Green Development

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- Shuozhou City, Shanxi Province, China

The Asian Coal Ash Association would like to thank all who participated in CICCPC 2017, the most recent international exchange in Shuozhou. This year’s topics focused on fly ash and desulfurized gypsum, with the theme "Technological Innovation to Promote Green Development". During the two day event participants engaged in technical exchanges on comprehensive utilization of fly ash and gypsum and discuss the latest scientific research.

One goal of the conference was to further strengthen international and domestic cooperation to promote technological progress and industrial development. Experts from the U.S.A, Germany, Australia, Canada, Ukraine and Japan were among the 700 participants at this year’s event.

The conference was jointly organized by AsianCAA, the National Institute of Building Materials Industry Information, Shuozhou Municipal People's Government, and the Shanxi Economic and Information Commission.  Mr. David Harris, the chairman of the Asian Coal Ash Association gave keynote and regular session speeches during the proceedings. Mr. Harris outlined coal ash and other solid waste utilization technologies, international trade status’ and industry development prospects.

In conjunction with the regular plenary session, was a product/technology exhibition and academic poster display. A variety of specialized meetings also took place at CICCPC. The meeting of the National Coal-based Solid Waste Resource Industry Technology Innovation Strategic Alliance took place for the first time during proceedings. There was a Fly Ash Intelligent Sales Control System meeting as well as a special Green Building Materials and Construction Technology exchange. The Ceramic Association business forum convened during the 23rd of September and  Shuozhou City Investment Promotion and Tourism Promotion gave a special inside look into regional operations. Guests were also able to enjoy an afternoon of horse racing at Youyo County and many other networking opportunities.

China International CCP Conference (CICCPC) 2017 - September 23-24

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- Shuozhou City, Shanxi Province, China

AsianCAA is proud to continue the partnership and collaboration with the Shuozhou government by bringing the China International CCP Conference to Shuozhou City, Shanxi Province, China, this September 23-24, 2017. The conference is expected to welcome over 500 domestic and international industry participants. The two day event will include oral presentations, multiple exhibitions (products and services exhibition, and research poster exhibition), as well as a local industry tour to one of Shuozhou’s fine milling facilities.

This year’s topics of discussion will be:

  1. Fly ash high value utilization and disposal
  2. Fly ash based Geopolymers
  3. CFB coal ash utilization
  4. Cement and concrete
  5. FGD gypsum high value utilization
  6. Coal ash application in prefabricated construction
  7. Coal ash domestic and international trade

Who should attend?

  • Power station managers
  • Ash and other CCP managers
  • Researchers & Academic institutes
  • Building material manufacturers
  • Non-government agencies
  • Logistics providers
  • Industry related media
  • Equipment manufacturers
  • Investors
  • Government officials

Become a part of our prestigious list of industry leaders.  Participants receive simultaneous translation during all presentations and a dual language handbook including all proceedings.

Honored Guests Include:

  • Wozungithathe Business Enterprise (South Africa)
  • Peking University
  • Tsinghua University
  • East China University of Technology
  • Shanxi University
  • Chinese Academy of Sciences
  • China Building Materials Academy
  • National Institute of Clean and Low Carbon Energy
  • Shenhua Group
  • Datang Group
  • Shanxi Energy Group
  • Datong Coal Mine Group
  • Sinoma Tianjin
  • Huarun Group
  • Shandong Huajian Warehousing Equipment Co.,Ltd
  • Weifang Alpha Equipment Co.,Ltd

Registration includes all meals, domestic travel and lodging during the days of September 22nd to the morning of the 25th. To inquire about speaking positions, exhibitor opportunities or general admissions please enter your information below and our event team will contact you.

Name *
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Please tell us how you would like to get involved at CICCPC

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

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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!