FAQs

How does Envergent deliver an RTP unit?

A: Envergent has adopted a modular delivery approach for RTP, which includes standard unit sizes to process current unit sizes of 100, 150 and 400 bone dry metric tons per day of feedstock. The first phase of an RTP project is a scoping study, which involves feedstock testing, initial evaluation of the site, project definition, detailed engineering and a preliminary cost estimate. The second includes procurement, module fabrication, site advisory and startup assistance, and operator training.

How is the Envergent offering different from other fast pyrolysis processes?

A: There are several distinguishing features of RTP offered by Envergent versus other fast pyrolysis technologies. RTP is the only commercial operation of fast pyrolysis and has been in practice for more than twenty-five years. It is set apart by high RTP green fuel yields and the fact that unit performance is guaranteed.

Can Envergent provide RTP green fuel samples?

A: Under a non-disclosure agreement, Envergent can arrange to provide RTP green fuel samples on a case-by-case basis.

What are the chemical/catalyst requirements for an RTP unit?

A: There is no catalyst in an RTP unit. Sand is used at the heat carrier, so makeup sand is required once the unit is inventoried. There are no chemical used in the RTP unit.

What are the waste streams from an RTP unit?

A: There are no waste streams produced by RTP. The products produced are: RTP green fuel, RTP by-product gas (a combustible fuel suitable for firing in furnaces, boilers, reciprocating engines, etc.), ash and a flue gas stream. The flue gas is a high volume, hot stream which can be used in heat recovery systems such as those used for biomass dryers, heat recovery steam generators, etc.

What feedstocks can be processed in an RTP unit?

A: The main focus is lignocellulosic biomass feedstocks that do not compete with food crops. This includes forestry, pulp and paper residuals, agricultural residues and woody post-consumer streams like clean construction and demolition wood.

What type of performance guarantees does Envergent offer?

A: Performance guarantees are negotiated with each individual customer, but nominal unit throughput, product yield and quality are parameters that are included in the supply agreement.

What is the capital cost of an RTP unit?

A: The capital cost of an RTP unit varies depending on the type and amount of feedstock to be processed. It also varies depending on whether the plant is a greenfield unit or integrated into an existing facility. As an example, the ISBL (inside battery limits) estimated CAPEX for a 400 bone dry metric ton per day facility is $US 40M. This excludes all OSBL systems including front-end material handling, utilities, product storage, foundations, site preparation and other associated site requirements.

Who is UOP?

A: For 100 years UOP has been a leading technology licensor and provider of equipment, catalysts, engineering support and service to the worldwide refining, petrochemicals and gas processing industries. UOP has 19 offices in 16 countries around the world and approximately 3,000 employees.

UOP launched its Renewable Energy & Chemicals business in 2006. The business has commercialized the ecofining process for the conversion of bio feedstocks into green gasoline and green diesel, and has developed technology for the conversion of bio feedstocks to green jet fuel.

Why UOP?

A: In addition to worldwide reach, UOP offers extensive engineering design capability and experience. UOP has also shown commitment to the development of renewable technology solutions with focus on the usage of second-generation feedstocks and technologies that leverage the existing infrastructure (i.e. drop-in replacement fuels).

Who is Ensyn?

A: Ensyn is a Delaware-headquartered company with engineering and development offices in Ottawa, Canada. It was incorporated in 1984 to commercialize its RTP technology to convert biomass to RTP green fuel. Its technology has been commercially deployed since 1989.

Why Ensyn?

A: Ensyn is a world leader in the type of thermal conversion technology that converts biomass to liquid bio-oil. Ensyn’s RTP technology is the world’s only rapid pyrolysis process that has a commercial record of operating on a long-term basis. Since 1989, Ensyn’s technology has been commercially deployed in the food sector for the production of food chemicals and energy, and as a result revolutionized that component of the food business. More recently, the technology has been deployed in the industrial chemical and heavy oil upgrading sectors. Ensyn has designed, built and commissioned seven commercial RTP plants in the United States and Canada. Scalability of the plants to the size required to supply large volumes needed by the fuel markets is attainable based on the size of plants currently being designed and built for the application of Ensyn’s technology in the heavy oil upgrading sector. UOP’s vast experience in engineering, designing and building at the scale required for large-scale fuel refining is a key attribute of the joint venture.

Are there any other uses for RTP green fuel besides energy generation?

A: Ensyn’s RTP technology has been commercially deployed since 1989 in the production of food products and industrial chemicals.

What is the potential for greenhouse gas savings?

A: When RTP green fuel replaces fossil fuels to produce heat or steam, life cycle greenhouse gas emissions are dramatically reduced – by 70-88% – depending on the biomass transport distance. Note the SOx emissions from burning RTP green fuel are similar to natural gas.
Comparison of GHG Emissions Cradle to Delivered Energy, and Burned

life-cycle

What are the properties of RTP green fuel?

A: RTP green fuel is a brown, pourable liquid with a smoky aroma. It has low volatility and is an aqueous polar liquid. It has a high oxygen and water content, which improves viscosity but decreases the heating value relative to fossil fuels. It also has a low pH as a result of the organic acids present. An ASTM specification has been developed for RTP green fuel for use in industrial burners. The fuel is in compliance with ASTM spec D7544.

What are the uses of RTP green fuel?

A: RTP green fuel, the liquid biofuel product of Envergent’s RTP™ Rapid Thermal Processing technology, can be used in a variety of applications, such as space heating, industrial process heating (furnaces, kilns, boilers, etc.) and electrical generation. It can be fired on its own or co-fired with other fuels, such as fossil fuel oil, coal, waste fuels and biomass. In addition, RTP green fuel can be further refined into green transportation fuels within a crude oil refinery.

What is RTP green fuel?

A: RTP green fuel is the liquid product of fast pyrolysis. It is a water-soluble, oxygenated fuel consisting of ‘depolymerized’ components of biomass. It is essentially carbon, hydrogen and oxygen, with low levels of nitrogen and negligible levels of sulfur. RTP green fuel contains almost no sulfur and is virtually carbon-neutral. It can be easily adapted for use in a wide variety of industries including pulp and paper, refining and petrochemicals, electrical generation and most energy-intensive heavy industries.
The major organic components of RTP green fuel are a liquid lignin derivative, alcohols, natural organic acids and carbonyls.

What is RTP™?

A: RTP™ stands for Rapid Thermal Process, representing the technology and equipment used to convert non-food-based feedstocks into RTP green fuel. It is a fast thermal process whereby biomass is heated rapidly by contact with hot sand; the biomass is first vaporized and then rapidly cooled. The process occurs in less than two seconds. This product can then be used in the generation of electricity and for the production of process heat. Development is underway to upgrade RTP green fuel into green gasoline, green diesel and green jet fuel.

What are non-food-based feedstocks?

A: These are plentiful feedstocks that do not compete with food resources. Cellulosic residuals from the forestry and agricultural sectors such as sawdust, empty fruit bunches, corn stover, and straw are examples. Urban residuals such as wood from construction and demolition activities are additional examples of non-food, biomass feedstocks. Energy crops which can be grown on land which otherwise could not support food crops can also be utilized. Studies completed in the U.S. show there are more than a billion tons of cellulosic residuals available in the U.S. today.

What are the attributes of the transportation fuel Envergent is developing? Is this another way of making ethanol and biodiesel?

A: The transportation fuel that we will offer is not ethanol or biodiesel. Envergent is developing two pathways to renewable transportation fuels. One using existing refinery infrastructure to coprocess RTP green fuel. The second is upgrading of RTP green fuel directly to transportation fuels. The green transportation fuels produced by upgrading will be fungible with their fossil counterparts. These fuels will be known as green gasoline, green diesel and green jet fuel. They will be molecularly identical to their fossil counterparts, whereas ethanol and biodiesel are not molecularly identical to gasoline or diesel. Being molecularly identical allows them to fit seamlessly into the existing refining and distribution infrastructure; they are fungible, avoiding any mixing and separation issues.