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Gas-to-Liquids (GTL)

[Due to the increasing size of the archives, each topic page now contains only the prior 365 days of content. Access to older stories is now solely through the Monthly Archive pages or the site search function.]

EPA finalizes GHG permit for $1B gas-to-gasoline plant in Texas; 8M barrels per year

October 03, 2014

The US Environmental Protection Agency (EPA) has issued a final greenhouse gas (GHG) Prevention of Significant Deterioration (PSD) construction permit to Natgasoline LLC to construct a new motor-grade gasoline production facility in Texas that uses natural gas as feedstock (gas-to-gasoline, or GtG).

Natgasoline is a new wholly owned greenfield methanol production complex being developed by OCI N.V. The proposed new GtG facility will comprise two main process operations: a methanol plant with a capacity of almost 1.75 million metric tons of methanol per year, and the methanol-to-gasoline plant (MTG), which will produce more than 8 million barrels of gasoline per year. The methanol plant will use natural gas delivered by pipeline as feedstock; the MTG plant will primarily use methanol from the methanol unit, but can also process methanol from other manufacturers.

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Groundbreaking in Turkmenistan for major synthetic gasoline plant; first full-scale Haldor Topsøe TIGAS facility

September 27, 2014

In August, a groundbreaking ceremony was held in Ovadan-Depe near the capital of Ashgabad in Turkmenistan to launch the construction of a major plant focused on the conversion of natural gas into synthetic gasoline. The plant will be based on Haldor Topsøe’s TIGAS (Topsøe Improved Gasoline Synthesis) technology (earlier post) and will become the first full-scale large commercial facility using this technology.

The plant has been awarded by the national gas company Turkmengas, and Topsøe will be working alongside the Japanese contractor Kawasaki Heavy Industry Ltd. and the Turkish contractor Rönesans Turkmen to engineer and construct the facility. The plant will be become operational in approximately four years from now with a daily production capacity of 15,500 bbl of synthetic gasoline.

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Maverick Synfuels introduces affordable small-scale methane gas-to-liquid modular methanol plants

September 26, 2014

Maverick Synfuels (earlier post) introduced a small-scale, modular methane-to-methanol production plant that can be co-located at the methane source. The Maverick Oasis system allows producers to monetize biogas and natural gas (including associated or flare gas, and stranded gas reserves), as an alternative to producing electricity or venting greenhouse gases into the atmosphere.

The Maverick Oasis factory-built Gas-to-Liquids (GTL) methanol plants are modular, and can be rapidly deployed onsite to produce thousands of gallons per day of methanol from natural gas or methane-rich waste gas. The plants are designed to be low-cost, highly efficient facilities optimized to generate an attractive project rate of return. Each Oasis modular facility comes equipped with performance guarantees based on the designed methanol output rating.

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USDA closes on $105M loan guarantee to Fulcrum for biorefinery converting municipal waste to renewable jet fuel; first USDA loan for biojet

September 04, 2014

The US Department of Agriculture (USDA) has closed on a $105-million Biorefinery Assistance Program loan guarantee through Bank of America, N.A. to Fulcrum Sierra Biofuels, LLC to build a biorefinery to produce jet fuel from municipal solid waste (MSW) via a proprietary two-stage thermochemical process. (Earlier post.)

USDA Rural Development’s loan guarantee represents less than half of the $266 million project cost. The plant is expected to produce 11 million gallons of fuel annually. This is the first loan guarantee USDA has made for the production of bio jet fuel.

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OCM company Siluria pulls in $30M in D round led by Saudi Aramco; methane to fuels and chemicals

August 20, 2014

Siluria Technologies, a pioneer in the commercialization of an oxidative coupling of methane (OCM) technology to produce ethylene from natural gas (earlier post), announced the initial close of its Series D financing round. The round was led by Saudi Aramco Energy Ventures (SAEV), the venture investment subsidiary of Saudi Aramco and included additional investments by all of the major existing investors in Siluria. The total raise for this initial close of the Series D financing was $30 million.

With this initial Series D financing, Siluria has raised just under $100 million since its inception. Siluria is currently in discussions with additional strategic and financial investors to complete a total Series D financing of approximately $50 million.

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Calysta reports 8-fold improvement in gas fermentation in ARPA-E program; BioGTL

July 10, 2014

Calysta, Inc. reported that it has achieved 8-fold improved performance over traditional fermentation technologies in a high mass transfer bioreactor. The bioreactor technology is under development for efficient methane-to-liquids fermentation processes, enabling rapid, cost-effective methane conversion into protein, industrial chemicals and fuels. (Earlier post.)

The improved performance was achieved in the research phase of a program funded in part by the Department of Energy’s ARPA-E program under the REMOTE program (Reducing Emissions using Methanotrophic Organisms for Transportation Energy), awarded in September 2013. (Earlier post.) Calysta develops sustainable industrial products using novel natural gas conversion technology using methane.

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Researchers propose CO2 recycling to improve Fischer-Tropsch GTL efficiency and reduce total CO2 emissions

June 21, 2014

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Overview of the CUGP processes. Credit: ACS, Zhang et al. Click to enlarge.

Researchers in South Korea are suggesting two new carbon-dioxide-utilized Gas-to-Liquids processes (CUGP) to increase the overall efficiency of conventional Fischer-Tropsch GTL. In a paper in the ACS journal Environmental Science & Technology, they report that the two CUGP options increase carbon efficiency by 21.1−41.3% and thermal efficiency by 15.7−40.7%, with total CO2 emissions reduced by 82.0−88.4%, compared to different conventional F-T processes.

This results in a decrease in total CO2 emissions to less than 5g CO2/MJ F-T product, compared to a range of 27.0 to 36.2g CO2/MJ F-T product for the conventional processes.

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Study suggests GTL blending could increase overall US refinery efficiency by improving diesel efficiency

June 20, 2014

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Impact of GTL diesel blending (5% penetration relative to refinery crude input) on US average overall refinery efficiency. Credit: ACS, Forman et al. Click to enlarge.

A team from Sasol Synfuels, Jacobs Consultancy and Argonne National Laboratory has used results from a US industry-wide linear programming (LP) modeling study of individual US refineries to examine the impacts of a number of significant and looming changes—such as shifts in refinery crude slates; regional and seasonal variation; gasoline/diesel (G/D) production ratio; and GTL diesel blending—on US refinery, unit, and product efficiencies. (LP is the the primary tool for analysis and optimization in the refining industry.)

Results of their study, which appear in the ACS journal Environmental Science & Technology, suggest that refinery and product-specific efficiency values are sensitive to crude quality; seasonal and regional factors; and refinery configuration and complexity—which in turn are determined by final fuel specification requirements and regulations. Additional processing of domestically sourced tight light oil could marginally increase refinery efficiency, but these benefits could be offset by crude rebalancing, they found.

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DOE releases five-year strategic plan, 2014-2018; supporting “all of the above” energy strategy

April 08, 2014

The US Department of Energy (DOE) released its five-year 2014-2018 Strategic Plan. The plan is organized into 12 strategic objectives aimed at three distinct goals: Science and Energy; Nuclear Security; and Management and Performance. These objectives represent broad cross-cutting and collaborative efforts across DOE headquarters, site offices, and national laboratories.

The overarching goal for Science and Energy is: “Advance foundational science, innovate energy technologies, and inform data driven policies that enhance US economic growth and job creation, energy security, and environmental quality, with emphasis on implementation of the President’s Climate Action Plan to mitigate the risks of and enhance resilience against climate change.” Under that, the plan sketches out 3 strategic goals:

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Synthetic biology company launches JV to commercialize gas-to-liquids bioconversion; isobutanol first target

March 28, 2014

Synthetic biology company Intrexon Corporation has formed Intrexon Energy Partners (IEP), a joint venture with a group of external investors, to optimize and to scale-up Intrexon’s gas-to-liquids (GTL) bioconversion platform. IEP’s first target product is isobutanol for gasoline blending.

Intrexon’s natural gas upgrading program is targeting the development of an engineered microbial cell line for industrial-scale bioconversion of natural gas to chemicals, lubricants and fuels, as opposed to employing standard chemical routes. Intrexon says it has already achieved initial proof of concept with an engineered microbial host converting methane into isobutanol in a laboratory-scale bioreactor.

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Velocys, Waste Management, NRG Energy and Ventech form JV for small-scale gas-to-liquids plants

March 24, 2014

Velocys plc, a developer of smaller-scale microchannel gas-to-liquids (GTL) technology, has entered a joint venture (JV) with Waste Management, NRG Energy (NRG), and Ventech Engineers International (Ventech) to develop gas-to-liquids (GTL) plants in the United States and other select geographies.

The JV will pursue the development of multiple plants utilizing a combination of renewable biogas (including landfill gas) and natural gas. Waste Management intends to supply renewable gas and, in certain cases, project sites. All four members will work exclusively through the JV to pursue the intended application (GTL using renewable gas, optionally in conjunction with natural gas) in the United States, Canada, United Kingdom and China.

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Siluria Technologies unveils new development unit for liquid fuels from natural gas based on OCM and ETL technologies

March 21, 2014

Siluria Technologies, the developer of novel bio-templated catalysts for the economic direct conversion of methane (CH4) to ethylene (C2H4) (earlier post), unveiled a development unit for producing liquid fuels from natural gas based on Siluria’s proprietary oxidative coupling of methane (OCM) and ethylene-to-liquid (ETL) technologies.

Together, Siluria’s OCM and ETL technologies form a unique and efficient process for transforming methane into gasoline, diesel, jet fuel and other liquid fuels. Unlike the high-temperature, high-pressure cracking processes employed today to produce fuels and chemicals, Siluria’s process employs catalytic processes to create longer-chain, higher-value materials, thereby significantly reducing operating costs and capital.

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Researchers develop new lower-temperature process for conversion of natural gas alkanes to alcohols

March 14, 2014

Researchers from The Scripps Research Institute (TSRI) and Brigham Young University have devised a new and more efficient method to convert natural gas into liquid products at much lower temperatures than conventional methods.

Their work, reported in the journal Science, uses main-group metals such as thallium and lead to oxidize methane and the other alkanes contained in natural gas (ethane and propane) to liquid alcohols at about 180 °C instead of the more than 500 °C used in current processes, said SRI Professor Roy Periana, who led the research. This creates the potential to produce fuels and chemicals at much lower cost.

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Shell producing base oil from natural gas for motor oils

March 08, 2014

Shell announced the production of the first clear base oil—the main component of motor oils—made from natural gas using its gas-to-liquids (GTL) PurePlus Technology. Shell PurePlus Technology is now being used to create motor oils for motorists in the United States. Pennzoil Platinum and Pennzoil Ultra Platinum Full Synthetic motor oils are the only ones blended exclusively with these GTL base oils.

Shell PurePlus Technology base oil is manufactured at the Pearl GTL facility in Ras Laffan in Qatar, a partnership between Qatar Petroleum and Shell. Shell PurePlus base oil is clear due to having fewer of the impurities found in crude oil. The Shell GTL and the Shell PurePlus base oil manufacturing processes have been the subject of multiple patents.

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Primus Green Energy’s STG+ patent for liquid fuel synthesis from syngas approved

February 05, 2014

Primus Green Energy Inc., an alternative fuel company that converts natural gas and other feedstocks directly into drop-in transportation fuels and solvents (earlier post), announced that its patent application covering its STG+ liquid fuel synthesis technology has been allowed by the US Patent and Trademark Office (USPTO). STG+ produces high-quality, cost-effective, drop-in liquid transportation fuels directly from syngas derived from natural gas and other carbon-rich feedstocks in a single-loop process.

STG+ essentially improves upon commercial methanol synthesis processes and ExxonMobil’s methanol-to-gasoline (MTG) process, combining them into an integrated, optimized system that efficiently converts syngas directly to fuels. In addition to the gasoline product, the STG+ process can also produce jet fuel, diesel and high-value chemicals by changing the catalysts and operating conditions. The company, which is currently producing synthetic gasoline at its demonstration plant (earlier post), plans to build several more reactors in parallel to the current production train for other fuel products.

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Sasol, GE develop new anaerobic microbial technology for cleaning of Fischer-Tropsch waste water; boosting gas-to-liquids (GTL) value proposition

November 06, 2013

Sasol and General Electric (GE: NYSE)’s GE Power & Water have together developed new technology that will clean waste water from Fischer-Tropsch plants used to produce synthetic fuels and chemicals, while also providing biogas as a by-product for power generation. The new Anaerobic Membrane Bioreactor Technology (AnMBR) will be further developed at a new demonstration plant at Sasol’s R&D Campus at its Sasol One Site in Sasolburg, South Africa.

AnMBR involves anaerobic micro-organisms that are able to live in environments devoid of oxygen, such as sediment layers on floors of lakes, dams and the ocean. Sasol currently uses aerobic microbes to treat GTL and coal-to-liquids (CTL) effluents in ORYX GTL, Qatar and Synfuels, Secunda facilities.

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