Robert Maas
8 Papers
13 Citations
Robert Maas is an academic researcher. The author has contributed to research in topics: Piping & Biochar. The author has an hindex of 3, co-authored 8 publications.
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Papers
Chemical evaluation of chars produced by thermochemical conversion (gasification, pyrolysis and hydrothermal carbonization) of agro-industrial biomass on a commercial scale.
TL;DR: In this paper, the 13 C NMR spectroscopy, scanning electron microscopy and energy-dispersive X-ray Spectroscopy and black carbon results confirmed these observations showing that hydrochars have lower proportions of aromatic compounds than biochars (less stable) but are rich in functional groups (higher cation exchange capacity) than biocharars.
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Effect of physical weathering on the carbon sequestration potential of biochars and hydrochars in soil.
Christophe Naisse,Cyril Girardin,Romain Lefevre,Alessandro Pozzi,Robert Maas,Arne Stark,Cornelia Rumpel +6 more
TL;DR: In this paper, the authors investigated the modification in composition and stability resulting from physical weathering of two different chars produced at low temperature by hydrothermal carbonization (HTC) and at high temperature by gasification (GS) using contrasting feedstocks.
137
Patent
Apparatus for heating biomass sludge
Arne Stark,Robert Maas +1 more
- 05 Jan 2012
TL;DR: In this paper, the authors presented an apparatus for the continuous preparation of a disintegrated biomass sludge, the apparatus comprising a first positive displacement pump (2), a first piping (6, 12) connecting an outlet of the first displacement pump(2) to an inlet of the second positive displacement pumps (4), a steam mixing device (8), and a disintegration device (20) provided in the first piping.
9
Patent
Method and apparatus for the treatment of process water from a hydrothermal organic material conversion process
Arne Stark,Robert Maas +1 more
- 19 Dec 2012
TL;DR: In this article, a method for the treatment of process water (9) from a hydrothermal organic material conversion process was proposed. But this method is not suitable for the case of anaerobic fermentation.
3
Patent
Method and apparatus for the treatment of process water from an organic material conversion process
Arne Stark,Robert Maas +1 more
- 20 Apr 2012
TL;DR: In this paper, a method for the treatment of process water (2) from an organic material conversion process was proposed, which consisted of a first separation step of separating the process water from a conversion product obtained in the OMC process, and a second separation step consisting of separating process water into a first component (8), a second component (10), and a membrane filtering step of filtering the second component using a membrane filter (12) comprising a dense membrane.
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