Ensyn has mastered its RTPTM (Rapid Thermal Processing) technology to convert lignocellulosic biomass such as wood and agriculture waste to its key cellulosic biofuel product named RFOTM (Renewable fuel Oil). RFO has many applications. Ensyn has been selling this liquid as heating fuels that directly displaces petroleum based heating fuels and as feedstock for production of renewable chemicals. Now RFO has find its application as renewable feedstock for conventional petroleum refineries.
The feedstock suitable for Ensyn’s RTP technology includes hardwoods and softwoods; white wood and bark; residues from sawmills; agricultural residues such as from palm oil and sugar cane plantations.
Ensyn’s Renewable fuel Oil
Fluid catalytic Cracking (FCC) is the process majority of the refineries across the world apply to process vacuum gas oil into petrol, diesel and jet fuels. To achieve this catalyst is circulated in a closed loop between two key vessels. The RTP process of Ensyn is an analogue to the FCC but with a difference. In Ensyn’s process instead of catalyst, hot sand is circulated between vessels. This exposes feedstock to hot sand which in a matter of seconds results in the thermal cracking of the feedstock to gases and vapours. The subsequent rapid cooling of the gases results in the liquid product RFO.
Depending on the feedstock the RTP gives approximately 65 to 80% (by weight) conversion of lignocellulosic biomass to liquid fuel while the rest of the weight (12-16%) gets converted into combustible gases and char.
RFO for Heating Purposes
In order to 100% replace its petroleum based heating fuels with Ensyn’s RFO, Memorial Hospital in North Conway, New Hampshire has signed a contract with the company. As per the contract Ensyn provides 300,000 gallons/per year RFO to the hospital hospital. Deliveries under this contract began in August 2014. Another similar contact has been signed with Valley Regional Hospital in Claremont, New Hampshire for a period of seven years. Starting in April 2015 under this agreement 250,000 gallons of RFO will be supplied to the hospital per yaet.
As of now the RFO requirement as heating fuel is being met by Ensyn’s Ontario facility while the company is expanding and developing additional RFO production capacity through various projects in North America and internationally.
At conventional refineries the Ensyn’s RFO can be utilized as renewable feedstock in Fluid Catalytic Crackers (FCCs) and processed along with the traditional FCC feedstock e.g. vacuum gas oil (VGO) in a proportion 5:95 to produce spec petrol and spec diesel. The spec petrol and spec diesel are drop-in fuels and their production does not require addition infrastructure for storage. This process is termed as Refinery Coprocessing. As per the information provided in company’s website at 5% displacement rate RFO performs comparably to VGO on a volumetric basis.
The demonstration of Refinery Coprocessing has been conducted in many operational commercial refineries and FCC pilot facilities. Trials have been carried out in Canada, US, Europe and South America.
In Refinery Coprocessing, Ensyn supplies RFO to refiners. UOP, a Honeywell company and Ensyn’s key partner helps the refiner in integrating RFO into their FCC unit by providing engineering services and delivery systems.
Ensyn’s Commercial Plant at Renfrew, Ontario
This 3 million gallons advanced cellulosic biofuel plant is Ensyn’s first dedicated biofuel plant. It is operational since 2006 but while earlier the focus was on the production of both the chemicals and fuel it is now upscaled and dedicated to produce fuel. Ensyn’s Renfrew facility has been qualified by the US Environmental Protection Agency (EPA) under the US Renewable Fuel Standards (RFS2) program.
Envergent Technologies Inc.
Envergent Technologies is a joint venture of Ensyn and UOP. It provides RTP biomass conversion equipment to projects Ensyn and its partners are developing in North America and in other countries. Under this joint venture, UOP provides engineering services of the RTP equipments.
Aracruz Project, Brazil
Ensyn and Fibria Celulose have come together to develop the first RTP project facility in Brazil to produce cellulosic liquid fuels and chemicals. Fibria Celulose S.A is the world’s largest producer of market pulp and its Aracruz facility produces 2.3 million metric tons of pulp per year utilizing Eucalyptus. At present the feasibility check of Aracruz project is undergoing and it is expected that the construction will begin this year.
Premium One Project, Malaysia
Ensyn in partnership with Premium Renewable Energy of Malasia is developing this project. Situated in Sabah, Malaysia the facility will utilize 400 dry tons per day of residues from Palm plantation. The facility will produce RTP Renewable Fuel Oil that will be utilized for the generation of electricity.