Oryzite: reusing rice husks to reduce the use of plastics

Oryzite logo
Type of organisation or company
Country
Spain
Language for original content
Scope
Submitted by
Technopolis Group
Ongoing
Yes
Description

Oryzite is a method for incorporating up to 60% or more rice husk as a filler in all types of thermoplastics. Every year we produce 800 million tonnes of rice, but the shell or husk is indigestible. As a result, enormous quantities of one of the largest (about 160 billion kg) agricultural products in the world go to waste.

Rice husks consist of 15% silica and 85% organic material (cellulose, lignin, D-xylose and a small proportion of D-galactose). The company Oryzite transforms the rice husks into resin, which can then be used to obtain the same volume of injection-ready moulded plastic using much fewer fossil-fuel-based polymers. The applications include urban furniture, waste containers, buttons, hangers, bottles and other packaging.

Main results
  • Oryzite yields the same volume of injection-ready moulded plastic with fewer fossil-fuel-based polymers, contributing to a more sustainable planet.
  • When manufacturing chopsticks, the company found that the raw materials and process costs were reduced by 25%.
  • The manufacturing process of Oryzite obtains 16 kg per kW consumed, so it's good in terms of productivity and energy consumption.