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Category: Landfill Gas

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Homepage > Landfill Gas
Posted on Biogas

How Low Can Your Landfill Gas H2S Treating Solution Go?

Landfill Gas (LFG) streams are important feedstocks for upgrading to Renewable Natural Gas (RNG). Before LFG can be sold to a commercial pipeline as RNG, it must be treated for hydrogen sulfide (H2S) contamination. One of the key factors in comparing H2S treating alternatives in LFG-to-RNG projects is the ability to reduce H2S levels to non-detect levels to meet pipeline specification.

Meeting Pipeline Specification

LFG-to-RNG project developers and operators have several options for treating H2S in landfill gas streams having various levels of effectiveness at reducing or eliminating H2S contamination. And, some H2S treatment methods are more resilient than others within their operating envelopes.

As a practical matter, the most important threshold is pipeline specification and more specifically the pipeline spec for the utility that will be taking the RNG.

READ MORE: Meeting RNG Pipeline Specifications – The H2S Imperative

As previously noted in our article Gas Treating – Processing Solutions for Multiple Industries, the University of Texas found that the interstate pipeline specifications for H2S range between 0.25 grains per 100 standard cubic feet to 1.0 grains.

Going All the Way – Treating to Non-Detect

Utilizing Talon®, our non-toxic, biodegradable liquid redox chemistry, the Valkyrie® ECO and ECO FLEX solutions are designed specifically for H2S treating in Renewable Natural Gas (RNG) applications.

VALKYRIE technology treats H2S down to non-detect levels, ensuring your LFG feedstock will meet pipeline requirements consistently from a single skid (no additional equipment required).

  • VALKYRIE ECO is the solution for H2S concentrations up to 10,000 PPM for gas volumes ranging from 0 to 1,350 SCFM.
  • VALKYRIE ECO FLEX is the solution for H2S concentrations up to 14,500 PPM for gas volumes ranging from 1,351 to 25,000 SCFM in single packages. The VALKYRIE ECO FLEX model uses a modular design that allows customers to scale treating capacity to meet your changing needs. 

LEARN MORE: VALKYRIE® Biogas-to-RNG Upgrading Technology

Other benefits of the VALKYRIE ECO and ECO FLEX solutions include:

  • Non-biologic, robust and sustainable solution.
  • Modular design made to scale to needs at site.
  • Ultra-low pressure with no pressure loss across the treating unit.
  • Operates continuously without shutdowns for media changes.
  • Does not introduce oxygen into the gas stream.

In summary, Streamline Innovation’s VALKYRIE H2S treating technology offers landfill gas operators the most reliable, green option with infinite turndown to bring H2S in LFG streams down to non-detect levels for consist delivery of RNG that meets pipeline specifications.  

Contact us today to learn more about how VALKYRIE ECO and ECO FLEX solutions can help you achieve your LFG-to-RNG upgrading needs.

About Streamline Innovations

Streamline Innovation’s vision is Eliminating Emissions Through Technology.  We help heavy industry around the world achieve environmental performance objectives, improve sustainability, and transition to a sustainable, low-carbon economy. Streamline Innovations Leads TIME’s List of America’s Top GreenTech Companies of 2024.

H2S is present in almost every industrial process in the world.  Our technology can be applied across industries, delivering a sustainable solution that eliminates H2S, the leading cause of acid rain, a deadly greenhouse gas dangerous for work and living environments.

Streamline believes that achieving the E (“Environmental”) in ESG requires data. Creating intelligent systems that operate effectively and efficiently without human intervention is critical to reducing emissions that harm the environment.   We integrate advanced data collection, process control, and analytics in our technologies to provide a total solution for customers.

We serve organizations in multiple sectors, including Energy/Oil & Gas, Biogas, Landfill Gas & Renewable Fuels, Municipal Wastewater and Industrial Air & Water.

Categories Biogas, Landfill Gas, RNG, Valkyrie
Posted on Biogas

Maximizing Landfill Biogas to RNG Project Uptime – Reliable, Green H2S Treating

Landfill Gas (LFG) streams are important feedstocks for upgrading to Renewable Natural Gas (RNG). However, before LFG can be sold to a commercial pipeline as RNG it must be treated for hydrogen sulfide (H2S) contamination. For an LFG-to-RNG project to live up to its green value proposition, project designers have to consider not just the capture of methane from landfills, but also the byproducts of the upgrading process itself.

As it turns out, not all eco-friendly H2S treating solutions are created equal. Reliability and process stability emerge as key considerations when evaluating green H2S treating methods.

Green H2S Treating Methods

There are several methods for treating H2S in LFG-to-RNG and biogas-to-RNG applications, but only two are truly “green” from the standpoint of not creating negative byproducts: Biologic solutions and Next Generation Liquid Redox.

READ MORE: What Makes an H2S Treating Solution “Green”?

Biologic Systems

Biological processes are green because they utilize natural microorganisms to convert H2S into non-harmful compounds. However, this strength is also the primary weakness of biologic treating solutions. Living organisms are not as predictable or consistent as known chemical processes.

Downsides of biologic H2S treating options:

  • Because the bacteria colony in a biologic treater acclimates to the amount of H2S it consumes, biologics are highly sensitive to variations in gas flow rates, temperatures, and H2S concentrations, making the entire system more prone to unplanned downtime and lengthy restarts.
  • Typically require long start-up times to allow a critical mass of microorganisms to grow.
  • Often require additional equipment to maintain a steady state, increasing the cost of these systems and adding operational complexity.

Next Generation Liquid Redox (VALKYRIE®)

The next generation of liquid redox solutions, such as VALKYRIE Biogas-to-RNG technology, provide Landfill Gas operators with a H2S purification solution that is not only green, but operationally robust. Like biological H2S treating options, VALKYRIE technology is a green solution, but also delivers higher reliability than alternatives.

Upsides to VALKYRIE technology:  

  • Reacts quickly to changes in gas flow, temperatures, and H2S concentrations for high reliability, process stability, and uptime.
  • Fast startup and restarts.

Additionally, VALKYRIE technology extracts elemental sulfur from the gas stream that can be sold as Simple Elemental Sulfur™ for use in organic food production.

LEARN MORE: VALKYRIE® Biogas-to-RNG Upgrading Technology

In summary, Streamline Innovation’s VALKYRIE H2S treating technology offers landfill gas operators the most reliable, green option for removing H2S from gas streams in the LFG-to-RNG upgrading process.

Contact us today to learn more about how VALKYRIE ECO and ECO FLEX solutions can help you achieve your LFG-to-RNG upgrading needs.

About Streamline Innovations

Streamline Innovation’s vision is Eliminating Emissions Through Technology.  We help heavy industry around the world achieve environmental performance objectives, improve sustainability, and transition to a sustainable, low-carbon economy. Streamline Innovations Leads TIME’s List of America’s Top GreenTech Companies of 2024.

H2S is present in almost every industrial process in the world.  Our technology can be applied across industries, delivering a sustainable solution that eliminates H2S, the leading cause of acid rain, a deadly greenhouse gas dangerous for work and living environments.

Streamline believes that achieving the E (“Environmental”) in ESG requires data. Creating intelligent systems that operate effectively and efficiently without human intervention is critical to reducing emissions that harm the environment.   We integrate advanced data collection, process control, and analytics in our technologies to provide a total solution for customers.

We serve organizations in multiple sectors, including Energy/Oil & Gas, Biogas, Landfill Gas & Renewable Fuels, Municipal Wastewater and Industrial Air & Water.

Categories Biogas, Landfill Gas, Odor Control, RNG
Posted on Biogas

Landfill Gas to RNG | A Green H2S Solution

Landfill Gas (LFG) streams are important feedstocks for upgrading to Renewable Natural Gas (RNG). Before LFG can be sold to a commercial pipeline as RNG, however, it must be treated for hydrogen sulfide (H2S) contamination.

Landfills, while necessary for waste management, emit significant amounts of methane, a potent greenhouse gas. However, innovative technologies are emerging to mitigate this environmental impact while simultaneously creating valuable resources. Streamline Innovation is at the forefront of this movement, offering a solution to convert LFG into Renewable Natural Gas (RNG) and fuel gas, transforming a liability into an asset.

Landfill Gas to RNG Opportunity

Landfill gas often contains hydrogen sulfide (H2S), dimethyl sulfide (DMS), mercaptans and other substances, which produce unpleasant odors and pose environmental and safety concerns. Treating LFG for H2S contamination is essential for safe operation, air permitting (for SO2 emissions), regulatory compliance, and community well-being.

Moreover, LFG streams serve as vital feedstocks for RNG production, requiring treatment for H2S contamination before commercial distribution via pipelines. Additionally, LFG can be treated for H2S and conditioned for use as fuel gas for reciprocating engine or turbine generators.

Keeping Green Landfills Green – VALKYRIE® ECO and ECO FLEX H2S Treating Solutions

Streamline Innovation’s VALKYRIE® ECO and ECO FLEX H2S treating systems are tailor-made for landfill gas operations. These solutions effectively removes H2S, DMS, and mercaptans from LFG streams in a cost-effective and sustainable manner. By converting H2S into elemental sulfur with no harmful byproducts, the system eliminates odors and enables renewable LFG to fulfill its potential as a clean energy source.

READ MORE: VALKYRIE® ECO and ECO FLEX H2S Treating Solutions for Biogas-to-RNG Upgrading

Additionally, the Simple Elemental Sulfur™ generated by Streamline’s system holds OMRI certification, underscoring its suitability for organic food production. The flexibility and scalability of these systems, coupled with their robust treating capabilities and low operating expenses, make them ideal for various project targets while ensuring superior safety and environmental benefits.

READ MORE: Streamline’s Sulfur from H2S Receives Listing as an input for Organic Food Production

How It Works

Using next-generation Liquid Redox technology, Streamline’s solution harnesses a chemical reaction known as Reduction-Oxidation (Redox) to convert H2S into elemental sulfur. The chemistry can be regenerated through an oxidation process, allowing for continuous operation. Landfill gas containing H2S and CO2 exits the system purified, while the sulfur is filtered and stored for reuse or disposal.

Benefits

The VALKYRIE ECO and ECO FLEX H2S treating solutions deliver several benefits to Landfill operators seeking to convert their waste streams into RNG, including:

  • Treats to Non-Detect Levels from a Single Skid.
  • No Additional Conditioning Equipment Required.
  • Insensitive to Variability in Flow Rates and Temperatures.
  • Converts H2S into OMRI Certified Simple Elemental Sulfur™.
  • Made in the USA, ensuring quality and reliability.

In summary, Streamline Innovation’s VALKYRIE H2S treating technology offers landfill gas operators a reliable, proven, and green solution for removing H2S from gas streams to facilitate the LFG-to-RNG upgrading process while simultaneously mitigating odors and ensuring safety.

READ MORE: What Makes an H2S Treating Solution “Green”?

Contact us today to learn more about how VALKYRIE ECO and ECO FLEX solutions can help you achieve your LFG-to-RNG upgrading needs.

About Streamline Innovations

Streamline Innovation’s vision is Eliminating Emissions Through Technology.  We help heavy industry around the world achieve environmental performance objectives, improve sustainability, and transition to a sustainable, low-carbon economy. Streamline Innovations Leads TIME’s List of America’s Top GreenTech Companies of 2024.

H2S is present in almost every industrial process in the world.  Our technology can be applied across industries, delivering a sustainable solution that eliminates H2S, the leading cause of acid rain, a deadly greenhouse gas dangerous for work and living environments.

Streamline believes that achieving the E (“Environmental”) in ESG requires data. Creating intelligent systems that operate effectively and efficiently without human intervention is critical to reducing emissions that harm the environment.   We integrate advanced data collection, process control, and analytics in our technologies to provide a total solution for customers.

We serve organizations in multiple sectors, including Energy/Oil & Gas, Biogas, Landfill Gas & Renewable Fuels, Municipal Wastewater and Industrial Air & Water.

Categories Biogas, Landfill Gas, RNG