RedShift Energy, Inc.
Hydrogen and Sulfur Recovery Technology
RedShift Energy, Inc., is developing Hydrogen and Sulfur Recovery Technology (HSRT), an innovative plasma process that dissociates hydrogen sulfide (H2S) into hydrogen and sulfur, without carbon emissions. Conventional Claus-based Sulfur Recovery Systems miss the opportunity to recover hydrogen. Thermodynamically, H2S is the cheapest source of carbon-free hydrogen when paired with renewable electricity. HSRT employs patented modular and scalable systems that retain their economic advantage from upstream to downstream. Deploying this disruptive technology will effectively and economically process H2S, while reducing emissions of carbon dioxide from Steam Methane Reforming hydrogen production. HSRT will help companies meet environmental goals.
RedShift Energy, Inc., a privately held, Texas based corporation, is developing Hydrogen and Sulfur Recovery Technology (HSRT), an innovative plasma chemistry process that safely and effectively converts unwanted byproduct of the oil industry, hydrogen sulfide (H2S) into two commercial products – hydrogen and sulfur, without carbon emissions. The main operations are at the Warminster, Pennsylvania research and development facility.
Plasma is one of the four major states of matter. There is not a sharp boundary between gas and plasma: gas that contains positively and negatively charged particles, ions and electrons, and therefore is electrically conductive, is plasma. Therefore, a conventional flame is also plasma. Technically, when we control properties of gas with electro-magnetic fields (e.g., in luminescent lamps), we work with plasma. Using electricity, it is possible to create plasma with very different properties: for example, hot plasma of electric arc used for welding and cold plasma of luminescent lamps. Plasma with temperatures of the molecules from 300K to 3,000 K is good for chemical processes, e.g., ozone production or polymer surface modification.
Replacing a Claus-based Sulfur Recovery System (SRS) with HSRT, when paired with a renewable source of electricity, will yield a zero-carbon process of recovering hydrogen.
When deployed upstream, HSRT helps reduce greenhouse gas emissions by enabling the safe capture of associated gases.
HSRT uses a patented reverse-vortex high-voltage low-current arc plasmatron to create a high-temperature zone that dissociates hydrogen sulfide and allows for the capture of hydrogen. In HSRT this high-temperature zone is small, but the gas flow velocity is high. This makes HSRT very compact in comparison with sulfur recovery systems based on the Claus process. Specially arranged gaseous dynamics and special materials in the plasmatron enables long-term stable operations. Specially tuned plasma and flow parameters make this process energy efficient and profitable.
Today, refineries consume 25% of the hydrogen produced worldwide, primarily to remove sulfur from oil products. The oil desulfurization process converts sulfur-containing substances and hydrogen to hydrogen sulfide. Then, hydrogen sulfide is partially oxidized in the Claus process-based sulfur recovery units to sulfur and water vapor. This wastes potential green hydrogen, as hydrogen sulfide is thermodynamically the least expensive source of hydrogen.
RedShift Energy HSRT is a patented method that builds on forty years of research and development. HSRT systems are modular and scalable and retain economic advantage from wellhead to refinery scale. A clear opportunity exists for the introduction of this disruptive technology that can effectively and economically process H2S, while reducing emissions of carbon dioxide from the Steam Methane Reforming (SMR) process of hydrogen production.
HSRT uses a patented high-voltage low-current arc plasmatron to create a high-temperature zone that dissociates hydrogen sulfide and allows for the capture of hydrogen. In HSRT this zone is small but the gas flow velocity is high. This makes HSRT very compact in comparison with Claus units.
HSRT uses a patented reverse-vortex high-voltage low-current arc plasmatron to create a high-temperature zone that dissociates hydrogen sulfide and allows for hydrogen capture.
In HSRT this high-temperature zone is small, but the gas flow velocity is high. This makes HSRT very compact in comparison with the Claus units.
Stable long-term energy efficient operation is due to precisely arranged gaseous dynamics and plasmatron materials.
We identified proprietary materials that enable electric arc electrodes to operate for extended periods in H2S atmosphere.
Centrifugal separation of sulfur clusters reachable at low-pressure systems is determined to be a necessary condition for high process efficiency and suppression of the reverse reactions.
We are experts in the formation of electric discharges in vortex and reverse-vortex flows and are able to arrange the centrifugal separation of sulfur clusters at atmospheric pressure.
HSRT allows recovery and recycling of hydrogen at a cost less than US $1/kg.
This process produces carbon-free hydrogen.
HSRT has a modular design for maximum operational efficiency and a small footprint.
High sulfur content reserves can be safely and profitably extracted.
Extend the productive life of wells.
RedShift Energy, Inc. was selected as one of the finalists for the Conoco Phillips Innovation Zone at the 23rd World Petroleum Congress, held in Houston, Texas from December 5-9, 2021. Innovation was the theme of the Congress, with companies representing over 70 countries in attendance. The Congress is held in cities all over the world, once every three years. It is the first time the Congress was hosted in the United States in over thirty years.
Dr. Alexander Gutsol and Howard Nelson introduced Hydrogen and Sulfur Recovery Technology (HSRT) to the attendees at the Congress on Monday, December 6, 2021.
Plasma is one of the four major states of matter, and was first described by chemist Irving Langmuir in the 1920s. Plasma can be artificially generated by heating or subjecting a neutral gas to a strong electromagnetic field to the point where an ionized gaseous substance becomes increasingly electrically conductive, and long-range electromagnetic fields can dominate the behavior of the matter.
Plasma and ionized gases have properties and display behaviors unlike those of the other states, and the transition between them is mostly a matter of nomenclature and subject to interpretation. Based on the surrounding environmental temperature and density, partially ionized or fully ionized forms of plasma may be produced. Neon signs and lightning are examples of partially ionized plasma.
The Earth's ionosphere is a plasma and the magnetosphere contains plasma in the Earth's surrounding space environment. The interior of the Sun is an example of fully ionized plasma, along with the solar corona and other stars. Positive charges in ions are achieved by stripping away electrons orbiting the atomic nuclei, where the total number of electrons removed is related to either increasing temperature or the local density of other ionized matter.
This also can be accompanied by the dissociation of molecular bonds, though this process is distinctly different from chemical processes of ion interactions in liquids or the behavior of shared ions in metals. The response of plasma to electromagnetic fields is useful in many modern technological processes, such as ozone production or plasma etching.