Waste-to-Energy through Pyrolysis

We are developing two rubber recycling plants on Puerto Rico in the United States. These plants will help with a serious problem of eliminating the accumulation of over 4.5 million tires per year that are piling up in mono-fills all across this Island. We are creating useful end-products of various sorts including carbon char, “bio-oil”, electricity, and activated carbon for filtering. Our initial Puerto Rico project is a kick-off to other ones to be carried out in other parts of the Caribbean Basin, Central America, the United States, and Europe, already in the planning stages.

 

SOME OF OUR TECHNOLOGIES EXPLAINED:

Let us explain below a brief summary of how our technology works and results in benefits for everyone: 

PYROLYSIS:

  

is a catalytic process using thermal conversion for material reduction... 

Pyrolysis is a process in which there is no oxygen added, as opposed to gasification where insufficient air is added, resulting in negative by-products. Pyrolysis produces a char which can be processed into a liquid, with a heat value in the range of 50-80% of mineral fuel oil. This char is referred to as “Carbon Black”. The oil which pyrolysis produces is called “bio-oil”, which is the basis of several processes for the development of fuels, chemicals and materials.

Pyrolysis is composed of various conceptual components. One concept is to use the residual fractions of the oil for hydrogen production after co-products are separated, making pyrolysis a possible component of a future hydrogen fuel-based economy.  Pyrolysis produces energy fuels with high fuel-to-feed ratios, making it the most efficient process for biomass conversion, and the method most capable of competing and eventually replacing non-renewable fossil fuel resources.

 

SCRAP PNEUMATICS:

tires u2247 fr

(A.K.A. vehicle tires) are a serious issue toward resolving waste disposal problems...

Waste rubber tires are prohibited from being disposed of in landfills. They require specialized treatment. For every passenger vehicle, there are five tires; four of them will be exchanged an average of every two years. In hot climates with rough roadways, where used tires often are purchased in lieu of new tires, the exchange process will occur every year.

In Puerto Rico, between four-and-a-half and six million tires are disposed of each year - that is an average of 16,500 every single day. Traditional users of tires like cement plants can only absorb about 15% of this quantity. Export markets are economically shaky. The transport costs plus environmental restrictions, as well as instability in such markets create real obstacles for disposition of tires using export markets.

The tires are collected and baled AWAITING DISPOSITION.

 

CRUMB RUBBER:

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Shredding the tires is an alternative, but this is very energy intensive.

In locations like Puerto Rico where energy is frequently four-to-five times the price of that available in the US domestic market, these energy costs make it uneconomical to pursue such a solution for the discarded tires. Smaller islands have even higher energy costs, plus the additional impediments of smaller volumes and very high transport costs. The alternatives require massive government incentives generally financed from large taxes imposed on the imported tires. Both shredding and taxing imported tires have proven ineffective because the latter has promoted increased imports of lower priced USED tires which have only exacerbated the disposal problem. Poor government fiscal situations have made the incentives difficult to realize. Waste tire processors have been forced out of business for depending on the incentives to close the economic gaps in their businesses.

 

PYROLYSIS:

GASIFICATION:

How is it different? Pyrolysis is the thermal degradation
of carbon-based material, in the absence of oxygen, to
produce char, pyrolysis oil and syngas
(ie. the Conversion of wood to charcoal).

Gasification is the breakdown of hydrocarbons into a syngas,
by carefully controlling or limiting the amount of
oxygen present
(ie. the conversion of coal into town gas).

While many PYROLYSIS projects are geared to municipal solid waste (MSW) and huge throughputs with corresponding immense costs to create and operate, we are concentrating on low-tech solutions to resolve specific problems such as waste vehicle tires, waste plastics, and waste petrochemicals with low entry costs. These solutions are designed to resolve smaller and more locally managed processing alternatives.

 

thermalgasification

CONTRIBUTION green3

 

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