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Download PDF<\/span><\/a><\/p>\n Topics<\/strong><\/p>\n <\/p>\n Mitsubishi and 7 others form coalition to promote electric natural gas<\/strong> More<\/a><\/p>\n Hydrogen should be treated with caution<\/strong> More<\/a> (in German)<\/p>\n Innovative agitator technology for biogas plants<\/strong> More<\/a> (in German)<\/p>\n Nitrous oxide and methane emissions from the biology of WWTPs<\/strong> More<\/a> (in German)<\/p>\n Recovery of liquid CO2 from the biogas process<\/strong> More<\/a><\/p>\n High H2 content in the converted natural gas network<\/strong> More<\/a> (in German)<\/p>\n Russian scientists propose converting natural gas into hydrogen directly in gas fields<\/strong> More<\/a><\/p>\n SFP Zeeland: Production of biomethane, biogenic CO2 and digestate<\/strong> More<\/a><\/p>\n RNG facilities begin production in South Dakota<\/strong> More<\/a><\/p>\n TotalEnergies\u2019 18th biogas unit commences operation in France<\/strong> More<\/a><\/p>\n RNG poised for $4B market in North America by 2030<\/strong> More<\/a><\/p>\n Brazilian Biomethane: Challenges and Opportunities<\/strong> More<\/a><\/p>\n Brazil\u2019s G\u00e1s Verde to build biomethane supply point<\/strong> More<\/a><\/p>\n Air Liquide boosts biomethane capacity in U.S. with two new units<\/strong> More<\/a><\/p>\n $440 Million Food-Waste-to-RNG Facility Breaks Ground in New Jersey<\/strong>\n
\nIn March, Mitsubishi Corp. said that it will form an international coalition with seven other firms including TotalEnergies, Tokyo Gas, U.S.-based Sempra Infrastructure, Belgium’s TES, and Japan’s Osaka Gas and Toho Gas to support development and production of electric natural gas (e-NG). They plan to create the group, called “e-NG Coalition”, in the first half of the year.
\ne-NG is a synthetic gas produced from renewable hydrogen and carbon dioxide and can be transported and stored utilizing existing infrastructures, Mitsubishi said in a statement, adding that the companies believe e-NG has a role to play to accelerate the energy transition towards a net-zero carbon future<\/p>\n
\nThis writes Antony Patt in his blog of the ETH in Zurich. Apart from the many positive aspect, there are several risks. He warns that Switzerland should think carefully about whether it wants to jump on this bandwagon. Storage: It takes a lot of energy to pressurize or cool hydrogen. The small and volatile molecules tend to diffuse through many materials. New approaches such as nanomaterials are still a long way off. Production is also challenging. Today, almost all hydrogen is produced from natural gas, which releases a lot of CO2 into the atmosphere. Blue hydrogen is also produced from natural gas, whereby the CO2 is captured add permanently stored underground. Unfortunately, large quantities of natural gas, especially methane, a powerful greenhouse gas, escape in the process. The cleanest option is green hydrogen, which uses renewable energy to split water into hydrogen and oxygen. However, this is extremely inefficient. Leakage: Until recently, leakage was only seen as an economic loss – but there is much more at stake. Leaked hydrogen reacts in the atmosphere with the scarce OH radicals that break down methane. Hydrogen leaks therefore extend the life of methane in the atmosphere.<\/p>\n
\nResearchers at M\u00fcnster University of Applied Sciences together with Trilogik GmbH have developed an innovative generation of agitators with improved suspension behavior and high axial thrust, which enables a significant increase in gas yield while simultaneously reducing energy consumption. The drive control is combined with online process monitoring and can therefore be carried out depending on the state of the digestate. Due to the trend towards increased fermentation of waste materials and the flexible addition of substrates, conventional agitator systems are increasingly reaching their limits and causing high energy costs and inadequate mixing results. Paddle agitators are particularly suitable for highly viscous substrate mixtures due to their large diameters and low speeds. In order to reduce the internal energy requirement and increase the agitator effect, the researchers adapted the geometry of these agitators strictly algorithmically to the properties of the fermenter substrate. To this end, they developed a comprehensive profile catalog which, in combination with different substrate mixtures and simulations of the fermenter flow, allows suitable geometries to be selected. The researchers also designed a substrate-adapted agitator control system. Stirring intervals and the speed of the agitators are controlled depending on the flow velocities at different fermenter positions. In this way, flow-related agitator weaknesses can also be identified and optimized in existing plants.<\/p>\n
\nNitrous oxide emissions from biological treatment stages are the most important source of greenhouse gases at WWTPs. The recording and reduction of emissions requires spatially resolved long-term measurements over at least one year. In Switzerland, measurements are usually carried out in the exhaust air alongside tracer gas methods. The study presented here utilises an independent measurement method, namely the drone-based determination of emissions, validated. The DFM method is a suitable validation procedure because all measured values are recorded on one device (drone) and no modelling assumptions need to be made for extrapolation to determine the total emissions. The DFM method is a patented method of the company Explicit ApS also for the quantification of methane emissions at wastewater treatment plants. The method was tested on three different WWTPs. The flight altitudes and the flight route were determined in such a way that the entire emission cloud could be captured as far as possible. The DFM method is very well suited for validating the results of point measurement methods. However, the DFM method is unsuitable for long-term measurements, as good wind conditions and the presence of trained personnel are required.<\/p>\n
\nAs early as 2023, the Tekniska verken Group Link\u00f6pig made an investment decision to build a facility to handle the biogenic carbon dioxide formed during the digestion of food waste, slaughterhouse waste, and more, which is then removed during biogas production. Bright Renewables has won the technical tender. The CO2 liquefaction system, with a capacity of 2,500 kg\/hr of bioCO2, includes technology to recover CO2 from the biogas upgrading process to purify and liquefy CO2 using natural refrigerant CO2 (R744). The system features four 70 m3 storage tanks for the liquid bioCO2 and a liquid CO2 analyzer for certifying the food-grade quality. CCU (Carbon Capture Utilization) is strategically important for Tekniska verken as part of the Group\u2019s efforts to turn carbon dioxide emissions into a resource. In parallel, the Group is investigating opportunities to capture, store, or use the carbon dioxide that currently arises in activities other than biogas production. The facility, which will annually produce 20,000 tons of food-grade quality bioCO2, is expected to be completed before next summer in 2025.<\/p>\n
\nIn order to achieve a climate-neutral gas supply in Europe, substitution with green hydrogen is unavoidable. The European research project “Hydrogen in Gas Grids” (HIGGS) investigated the influence of hydrogen (H\u2082) concentrations between 10 and 100% in the gas transport network theoretically and experimentally. Two major approaches were chosen: 1) Modelling of transport cost and 2) experimental material testing. The aim of modelling was to assess the influence of higher H\u2082 proportions on the economic efficiency of gas transport. For this purpose, a numerical model was created to describe the technical operation and the economic impact. The model makes it possible to analyze the various technical adaptations of the network (depending on the volume % H\u2082) as well as the operational strategies for a network with H\u2082 feed-in. The model shows that only minor adjustments to the infrastructure are required to feed up to 6 vol% H\u2082 into the grids. The transport cost amount to approx. 3 \u20ac per MWh per 1000 km without separation of H2 at consumer\u2019s site. Scenario two looks at mixtures of 10, 20 and 30 vol% H2. A separation technology (palladium membranes) is installed at the level of the transport network and ensures that the H\u2082 concentrations in the distribution network do not exceed 2 vol% H\u2082 and 10 vol% H\u2082. The separated H\u2082 is recompressed to the pressure of the transport pipeline and fed back into it. The calculated transport costs amount to 10.7 to 21.1 \u20ac\/MWh\/1000 km in summer. In winter, the costs are higher and amount to \u20ac18.1 to \u20ac47.3\/MWh\/1000 km.<\/p>\n
\nResearchers from the Skolkovo Institute of Science and Technology in Russia explored the conversion of methane into hydrogen in the gas reservoir with zero oil saturation via steam methane reforming initiated by in situ gas combustion. Hydrogen from natural gas can be produced with 45% efficiency right in the gas field by injecting steam and a catalyst into a well and adding oxygen to ignite the gas. Catalyst assisted combustion produces a mixture of carbon monoxide and hydrogen, from which the latter can be easily extracted. This technology will help accelerate the transition from fossil fuels to clean hydrogen power. The study was published in Fuel.<\/p>\n
\nLocated in the province of Zeeland, in the Netherlands, the SFP Zeeland plant is a cutting-edge project and one of Europe’s best practices. The plant produces renewable and high-quality biomethane from 400,000 m3 of manure and residual organic materials, both solid and liquid, which are managed in 9 digesters with a capacity of 10,000 m3 each. From the purification of 7,000 m3 of biogas per hour with membrane upgrading systems, 5,000 m3 of biomethane per hour (38 million Nm3 per year) are produced, which are injected into the grid. CO2 is also recovered and liquefied for the production of biogenic CO2. Finally, the digestate, both liquid and solid, is reused as fertilizer.<\/p>\n
\nClean Energy has completed a new renewable natural gas (RNG) production facility at Drumgoon Dairy in Lake Norden, South Dakota. The 6500-cow dairy farm is expected to supply 6.28 million liters of negative carbon-intensity RNG annually to the transportation market when at full capacity. Construction of the US$38 million RNG digester project was completed in early-December 2023 and injection into the interstate natural gas pipeline system of the RNG began within weeks. All the RNG produced at Drumgoon will be available at Clean Energy\u2019s fueling infrastructure. Clean Energy also announced the successful completion and operational launch of an RNG production facility at Tri-Cross Dairy in Viborg, South Dakota. The 5000-cow dairy farm is expected to supply 3.79 million liters of negative carbon-intensity RNG annually to the transportation market when at full capacity. The construction costs of the RNG production facility, including the building of digesters and the processing plant, totaled US$34 million and was completed in December 2023.<\/p>\n
\nEnd of 2023, TotalEnergies commissioned the BioB\u00e9arn biogas production unit in Mourenx in the south-west of France. The facility has an annual production capacity of 160GWh. BioB\u00e9arn has been built on a 7-hectare former brownfield site in the center of the Lacq basin and represents TotalEnergies’ 18th biogas production unit in France. The unit will be capable of converting 220,000 tons of organic waste every year from local farming activities and the agri-food industry. As of January this year, the unit has been feeding its biomethane into the natural gas transmission network operated by Ter\u00e9ga. It will gradually be scaled up to produce up to 160 GWh at 100% capacity, which is equivalent to the average annual consumption of 32,000 inhabitants. The unit is supplied with organic waste from 90 local suppliers within an average radius of 40 kilometers of the site.<\/p>\n
\nThe North American renewable natural gas (RNG) market is on the verge of substantial growth, projected to surge from $1.5 billion in 2022 to $4.0 billion by 2030, boasting an impressive CAGR of 13.04%. This growth trajectory is driven by increasingly stringent emissions standards and several government regulations mandating the uptake of clean fuels. The RNG production is projected to quadruple from 2022. landfills are expected to account for 64% of the RNG produced, owing to the large volume of landfill gas (LFG) generated from individual projects, along with most landfills already having LFG collection equipment in place. Agricultural waste based RNG is expected to account for 25% of the RNG produced while wastewater and food-waste or Source Separated Organics (SSO) are relatively less prominent, producing respectively 3% and 8% of the total RNG by 2030. cCarbon\u2019s report \u201cNorth American Renewable Natural Gas Outlook 2030\u201d delves deeper into the strategies, challenges, and opportunities in this rapidly evolving industry.<\/p>\n
\nData from the Brazilian Biogas Outlook 2022\/2023 indicates that 22% of the 2.9 billion m\u00b3 of biogas produced annually is upgraded into biomethane. This represents 82% growth as compared to 2021. Brazil has 936 plants, with 885 currently in operation (95%), 38 under construction (4%) and 13 under repair (1%). In 2022, these plants produced 2.8 billion Nm\u00b3 of biogas and the industry predicted an increase of 15% for the beginning of 2023. Brazilian Biogas Association \u2013 ABiog\u00e1s states that Brazil has the largest biogas potential in the world, which could reach as high as 84.6 billion Nm\u00b3 of biogas per year. This potential has the capacity to supply almost 40% of national electricity demand or replace 70% of Brazilian diesel consumption.
\nDespite the immense opportunities that the market can bring to the country\u2019s economy, one of the main challenges the industry is facing is regulation. Another important challenge is distribution, since natural gas consumers are far from biomethane producers. However, there is enormous energy demand close to biomethane production sites that do not take into consideration this renewable energy as an alternative. The biomethane market trends towards significant growth. ABIOGAS\u2019 projects the production of 2.2 billion m3\/day of biomethane in 2027, most of which will come from 27 new biogas plants planned by the company. Around 60% of this volume comes from biogas generated in landfills. The application of this biogas should be directed to transport and industry, and for the latter, the possibility of interstate sale is very relevant.<\/p>\n
\nG\u00e1s Verde, part of the Urca Energia group, is setting up Brazil’s first biomethane refueling point. The aim is to meet demand from clients Ambev, Ternium, Saint Gobain and L’Or\u00e9al, which are converting their vehicle fleets to run on biomethane. G\u00e1s Verde is the largest biomethane producer in Latin America, with 130,000m3\/d coming from a landfill site in Serop\u00e9dica, in Rio de Janeiro\u2019s metropolitan region. The company plans to exceed output of 500,000m3\/d by 2028, with new plants in Rio de Janeiro, S\u00e3o Paulo, Minas Gerais, Bahia, Pernambuco and Maranh\u00e3o states. Although there is strong demand for biomethane, the gap with natural gas remains a challenge for the expansion of the biofuel market.<\/p>\n
\nAir Liquide persists in broadening its capabilities in biomethane, alternatively recognized as Renewable Natural Gas (RNG), within the United States by erecting two additional production facilities. Positioned in Center Township, Pennsylvania, and Holland Township, Michigan, these facilities are designated to process waste obtained from dairy farms. Utilizing manure feedstock in anaerobic digesters, these production units will generate biogas with a total production capacity of 74 GWh. Presently, Air Liquide operates 26 operational biomethane production units worldwide, boasting a yearly production capacity of approximately 1.8 TWh.<\/p>\n
\nA ceremonial groundbreaking took place Tuesday for the Linden Renewable Energy Project. Spearheaded by partners SJI, Captona and RNG Energy Solutions, the site will be the nation\u2019s largest food waste-to-renewable natural gas facility. The $440 million project will convert organic waste into bio-methane using proven anaerobic digestion technology here in the New Jersey\/New York Metropolitan area. That bio-methane will then be upgraded to pipeline quality natural gas for injection into the adjacent Elizabethtown Gas system. Construction began in January; completion is slated for the fourth quarter of next year.<\/p>\n