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Displaying items by tag: Waste Heat Recovery
Ramco Cements to build new 3.15Mt/yr plant in Andhra Pradesh
14 December 2018India: Chandrababu Naidu, the chief minister of Andhra Pradesh, has laid the foundation stone for Ramco Cements’ new 3.15Mt/yr integrated plant at Kalavatala, Kolimigundla Mandal in Kurnool District. The project has an investment of nearly US$210m. The plant will include a waste heat recovery (WHR) unit and a captive power plant. A 25km railway line from Samjamala has also been proposed to support the plant. Once the required statuary clearances are obtained the plant is expected to take 15 months to build.
Other new projects the cement producer has scheduled include an upgrade at its Jayanthipuram plant in Krishna District to 4.6Mt/yr from 3.1Mt/yr with a 27MW WHR unit. The project has a cost of just over US$100m and it is expected to be commissioned in March 2020. The company is also upgrading the grinding capacity of its Vizag plant to 2Mt/yr from 0.9Mt/yr. This project has an investment of around US$25m and is also expected to be commissioned in March 2020. Once these three projects are completed Ramco Cements says that it will become the largest producer in Andhra Pradesh with a production capacity of nearly 10Mt/yr.
In the east of the country Ramco Cements us building a new 0.9Mt/yr grinding plant in Odisha with a railway terminal for around US$70. This is expected to be commissioned by September 2019. In West Bengal the company is upgrading the grinding capacity at its Kolaghat plant in East Midnapore district to 2Mt/yr from 0.9Mt/yr for around US$60m. This project also includes a railway terminal and it is scheduled for commissioning in April 2019. Altogether the company plans to reach a cement production capacity of 20Mt/yr by 2020 across the country.
Ambuja Cements approves extension to Marwar Mundwa plant project
13 December 2018India: The board of Ambuja Cements has approved an extension to its Marwar Mundwa integrated plant project in Rajasthan. The clinker production capacity of the plant has been increased to 3.1Mt/yr and an additional 1.8Mt/yr cement grinding capacity has been added. The total investment of the project has been increased to around US$326m. A waste heat recovery (WHR) unit has also been added to the project. Once completed the plant will increase the subsidiary of LafargeHolcim’s production capacity of 31.5Mt/yr.
Bestway Cement outlines water conservation measures
10 December 2018Pakistan: Bestway Cement has promoted its environmental credentials following the Supreme Court’s mandated investigation into water usage by cement companies near the Katas Raj Temples in 2018. The cement producer says that all of its cement plants are ISO 14001:2004 Environment Management Systems certified. Specifically on the issue of water conservation, it has installed air-cooled condenser systems at two of its plants at Chakwal and Kallar Kahar respectively and it has built rain-harvesting ponds. In total the company has spent around US$14m on water conservation measures. Altogether it says that it has achieved 80% and 88% reductions in consumption of ground water for industrial use, respectively, at the two plants.
Other environmental measures the company has made include installing waste heat recovery (WHR) units at all four of its cement plants. Its total WHR capacity is 45.5MW giving it 28% of its total power needs. The company is recognised by the United Nations Framework Convention on Climate Change (UNFCCC) under its Clean Development Mechanism (CDM) Program for its initiative to reduce carbon emissions/footprint. It has also implemented tree plantation at its plants and surrounding areas, it uses drip irrigation and sewerage waste management and its head office in Islamabad has been certified as a Green Office by the World Wide Fund for Nature (WWF).
Raysut Cement orders waste heat recovery system from Sinoma
03 December 2018Oman: Raysut Cement Company has ordered a waste heat recovery unit from China’s Sinoma. No cost for the deal or an expected timescale has been disclosed. The company says it is the first of its kind in the country. Once completed it is expected to reduce the company’s power costs at its plant by up to 30%.
Cement Sustainability Initiative report shows Indian cement industry meeting 2030 carbon emission targets
03 December 2018India: A report by the Cement Sustainability Initiative (CSI) shows that the local cement sector is on track to meet its 2030 targets from the low carbon technology roadmap (LCTR). Direct CO2 emission intensity fell by 5% in 2017 in the Indian cement sector compared to the 2010 baseline. CO2 emission intensity, including onsite or captive power plant (CPP) power generation, was reduced by 6.8% compared to the 2010 baseline. The alternative fuels thermal substitution rate (TSR) increased by 5 times from 2010 to 2017. The sector consumed more than 1.2Mt of alternative fuels in 2017.
“Sustainability is a journey, not a destination. In our globalised and interconnected world, no one can solve alone the challenges ahead of us and the only opportunity to succeed is through collaborative partnerships, where the common interests of all are considered as more important than the sum of individual interests. This is exactly the spirit that has animated the CSI’s low carbon journey since 1999. This flagship project - with its members - has developed, implemented and shared collective solutions for measuring, reporting and improving its greenhouse gas reduction performance, year after year,” said Philippe Fonta, managing director CSI.
The CSI and the International Energy Agency (IEA) worked with nine local CSI member companies - ACC, Ambuja Cements, CRH, Dalmia Cement (Bharat), HeidelbergCement, Orient Cement, Shree Cement, UltraTech and Votorantim Cimentos - to carry out the status review on the sector’s performance trends, continuous implementation measures and notable achievements based on the milestones set in the 2013 LCTR. The Status Review Report was developed in consultation with Confederation of Indian Industry (CII), with support from International Finance Corporation (IFC) and the Cement Manufacturers Association (CMA).
The findings of the report show that the direct CO2 emission intensity was reduced by 32kgCO2/t cement to 588kgCO2/t cement in 2017 mainly due to an increased use of alternative fuel and blended cement production, coupled with a reduction in clinker replacement factor. However, the study also shows that significant efforts will be needed to meet the 2050 objectives of 40% reduction. The CO2 emission intensity (including onsite or CPP power generation) has reduced by 49kgCO2/t cement to 670kgCO2/t cement in 2017 compared to the baseline year. The report has highlighted the adoption of waste heat recovery (WHR) systems by local cement plants.
The alternative fuels TSR increased to 3% in 2017 from 0.6% in 2010. More than 60 cement plants in India have reported continual usage of alternative fuels, with 24% of the total alternative fuels consumed as biomass. The share of blended cements used in the total quantity of cement manufactured increased to 73% in 2017 from 68% in 2010, largely due to the market’s growing acceptance of blended cement, emerging awareness of sustainability concepts, the availability of fly ash from thermal power plants and the use of advanced technology. The production of Pozzolana Portland Cement grew to 65% in 2017 from 61% in 2010. The share of Portland Slag Cement in cement production remained flat, at less than 10%, over the same period. The clinker factor reduced to 0.71 in 2017 from 0.74 in 2010.
In August 2018 the Global Cement and Concrete Association (GCCA) said it was taking over the work previously done by the CSI from 1 January 2019.
Thatta Cement approves waste heat recovery project
18 October 2018Pakistan: Thatta Cement has approved a waste heat recovery project with its associated company, Thatta Power, at its annual general meeting. The two subsidiaries of the State Cement Corporation of Pakistan have ratified a waste heat utilisation agreement. The cement producer operates a 0.6Mt/yr plant at Thatta near Karachi.
Riding the IPCC rollercoaster
10 October 2018One graph the United Nations’ (UN) Intergovernmental Panel on Climate Change (IPCC) report on Global Warming of 1.5°C didn’t include this week was what happens if the world just doesn’t bother. It’s probably just as well since warming of 1.5°C is likely to happen between 2030 and 2052 at the current rate of climate mitigation efforts. If they had included such as diagram, it likely would have had a ominous red line hurtling skywards like a rollercoaster track just before the screams start.
The giant paper study is really about comparing and contrasting the different impacts and responses to a 1.5°C and a 2°C rise. One taste of what the higher rise threatens is, “limiting global warming to 1.5°C instead of 2°C could result in around 420 million fewer people being frequently exposed to extreme heatwaves, and about 65 million fewer people being exposed to exceptional heatwaves."
The cement industry gets a look-in with an acknowledgment that the sector contributes a ‘small’ amount (5%) of total industrial CO2 emissions. It then breaks the entire industrial sector’s mitigation strategies down to (a) reductions in the demand, (b) energy efficiency, (c) increased electrification of energy demand, (d) reducing the carbon content of non-electric fuels and (e) deploying innovative processes and application of carbon capture and storage (CCS).
Speaking generally, phasing out coal, electrification and saving energy in mechanisms like waste heat recovery is predicted to get industry only so far. Yet from here even skirting over 1.5°C but below 2°C is ‘difficult to achieve’ without the, “major deployment of new sustainability-oriented low-carbon industrial processes.” Such new process include full oxy-fuelling kilns for clinker production, which have not been tested at the industrial scale yet. Likewise, CCS is seen as a major part of keeping warming below 2°C with a target of 3 Gt CO2/yr by 2050. Some reality is present though when the report says that the development of such projects has been slow, since only two large-scale industrial CCS projects outside of oil and gas processing are in operation and that cost is high. It even posits a value of up to US$188t/CO2 (!) for the cost of CO2 avoided from a Global CCS Institute report.
None of this is new to cement producers. The real debate is how to get there without wiping out the industry. In his address to the recent VDZ conference, Christian Knell, the president of the German Cement Works Association (VDZ), highlighted that meeting climate change goals was leading to ‘considerable’ costs for the cement industry. He then called for policy-related support to on-going research projects into CO2 mitigation technology.
The bit that the IPCC doesn’t go into is how much those five steps to the industrial sector will cost cement producers and, vitally, who will pay for it. For example, taking a cement plant’s co-processing rate to 70% and building a waste-heat recovery system, might cost around US$30m. The Low Emissions Intensity Lime And Cement (LEILAC) Consortium’s Calix’s direct CO2 separation process pilot at the Lixhe cement plant in Belgium has funding of about Euro20m. Rolling all three of these measures out to the world’s 2300 cement plants would cost over US$100bn and it would take more than a decade. Beware, the financial figures here are rough estimates and may be way out. The point remains that the implementation costs will not be trivial.
Industry advocates have started in recent years to push back against the climate lobby by highlighting the essential nature of concrete to the modern world. The IPCC barely mentioned this aspect of cement’s contribution to society suggesting recycling, using more renewable materials, like wood, and resorting to the mitigation strategies detailed above. Building new cities out of wood is not inconceivable but CCS seems more likely to solve the climate problem at this stage. Manufacturing the cement that becomes concrete may create CO2 emissions but it has also built the modern world and raised living standards universally. No cement means no civilisation. There is, at present, no alternative.
Instead of leaving this discussion at an impasse, it is worth reflecting on the last week in the industry’s news. An Indian cement company is importing fly ash, several companies are opening or preparing cement grinding plants, a coal ash extraction pilot project is running, a waste heat recovery unit has opened at a plant in Turkey and a producer is getting ready to co-process tyres as a fuel in Oman. All of these stories are proof that change is happening. The trick for policymakers is to keep prodding the cement sector in this direction without disrupting the good things the industry does for people’s lives through sustainable housing and infrastructure.
The November 2018 issue of Global Cement Magazine will include an exclusive article by Mahendra Singhi, the CEO of Dalmia Cement, about his company’s CO2 mitigation efforts.
The 2nd FutureCem Conference on CO2 reduction strategies for the cement industry will take place in May 2019 in London, UK.
Turkey: Sanko Holding is planning start a 7MW waste heat recovery (WHR) unit, supplied by Italy’s CTP Team, at its Cimko Narli Cement plant in early 2019. CTP Team signed a turnkey contract for the WHR unit in March 2018. It will be the first unit in Turkey to use Organic Rankine Cycle (ORC) technology. The unit will provide approximately 12% of the current plant’s electricity needs, with an annual uptime efficiency of 7920hr and energy of 36kWhr/yr.
“The project will be the first project based on ORC technology with a thermal oil loop in Turkey for heat recovery from the cement industry,” said CTP Team Assistant General Manager Acelya Arik and Sales Director Marco Ernesto Donghi when the contract was signed. They added that since the project is the first ORC-based heat recovery plant in a Turkish cement plant it will be a milestone that will push further WHR projects in this field.
Ssangyong Cement launches world’s largest waste heat recovery unit at a cement plant
19 September 2018South Korea: Ssangyong Cement has launched what it says is the world’s largest waste heat recovery unit at its Donghae plant in Gangwon. The 43.5MWh unit had a budget of US$889m and was originally planned to 2016, according to the
Maeil Business Newspaper. 11 boilers plus turbines and cooling towers have been installed on six cement kilns at the site. The new system will also work in conjunction with an energy storage system (ESS) that was installed in April 2017.
WHR project for Bartin Çimento
16 August 2018Turkey: Shanghai Triumph Energy Conservation Engineering Co Ltd has won a waste heat recovery (WHR) project at Bartin Çimento from Turkey’s Sanko Holding, which operates the plant. It will have a recovery capacity of 5MW from the 3700t/day facility. The project will be carried out on an Engineering, Procurement and Construction (EPC) basis.
Shanghai Triumph plans to install two boilers and one power generation system. It will use two boilers from Mitsubishi Corporation, with the power generator likely to be sourced from Kubota Corporation.