Walter Focke

Title: Walter Focke: Innovator in Catalysis and Binder Technology

Introduction

Walter Focke is a notable inventor based in Pretoria, South Africa. He has made significant contributions to the fields of catalysis and binder technology, holding a total of 2 patents. His work focuses on innovative processes that enhance the efficiency of chemical reactions and material treatments.

Latest Patents

Focke's latest patents include an "Oxygenate reduction catalyst and process." This invention provides a catalyst system and method for the deoxygenation of hydrocarbons, such as bio-oil, using a sulphide-sulfate or an oxide-carbonate (LDH) system. The invention extends to a pyrolysis process of carbonaceous bio-mass, wherein a first combustion zone is carried out in one or more combustion fluidised beds. In this zone, a particulate material, including chemically looping deoxygenation catalyst particles, is fluidised and heated. A second pyrolysis zone is conducted in one or more pyrolysis fluidised beds, where the hot particles, including the catalyst particles heated in the combustion zone, are used for pyrolysis of the bio-mass. The combustion zone operates at temperatures ranging from 250°C to 1100°C, typically around 900°C, while the pyrolysis zone operates at temperatures from 250°C to 900°C, typically between 450°C and 600°C. The catalyst particles are oxygenated in the pyrolysis zone in the presence of oxygenates in the pyrolysis oil and regenerated in the combustion zone by calcining or reduction.

Another significant patent is the "Binder composition and method for treating particulate material." This invention involves preparing a binder composition for treating particulate material to form a solid aggregate matrix. The composition includes a urea formaldehyde precondensate, a polar solvent, additional urea, and an acid or salt thereof, selected to render the pH of the binder composition between 2.0 and 5.3. The binder composition is mixed with particulate material and allowed to set into a solid aggregate matrix over a period longer than 30 minutes.

Career Highlights

Walter Focke has worked with various organizations, including Henri Arnold De Bruyn and the University of Pretoria. His experience in these institutions has contributed to his expertise in catalysis and material science.

Collaborations

Focke has collaborated