We are pleased to inform that Martti Pekkanen joined SciTech-Service Oy on December 2021. Martti Pekkanen, Ph.D. in chemical engineering, has long experience in process modeling and process conceptual design both in academia and in engineering practice, e.g. in Rintekno Oy, Neste Jacobs Oy, and Kemira Oyj. At SciTech-Service Oy Martti will provide his consulting services as leading expert in the field. www.scitech.fi SciTech-Service offers outsourced technology development for biomass processing in the areas …
Year: 2021
Pulp & Paper Industry in Russia
Sulfite pulping in Russia: In anticipation of the conference on Russian Pulp and Paper Industry in Vienna in December, we had the opportunity to chair a virtual round table discussion on sulfite pulping in Russia. This is a very interesting subject as sulfite pulping has largely disappeared from Scandinavia. It turns out that in Russia the sulfite industry is doing …
Transport phenomena in kraft (sulphate) cooking process
Wood substance is a very complicated porous structure consisting of lignin bound wood fibers. We were initializing and leading a 15 years period of research on these issues and their interdependence s with pulp industry, machinery manufacturers and Helsinki University of Technology.
ForestBioFacts: Introduction to forest-based bioeconomy Webinar
From: Forest BioFacts, the digital learning environment and source of in depth information for professionals in pulp and paper and other biomass conversion industries, which is published by the Finnish Forest Products Engineers Association ( www.forestbiofacts.com ). Heikki Hassi participated on the ForestBioFacts: Introduction to forest-based bioeconomy Webinar – presented by Finnish Forest Products Engineers’ Association (PI) and took place on September …
Chemical and Physical performance of Kraft Pulp Cooking
Kraft pulp mill process has become the only dominating cooking process for making chemical pulp. In the 1980’s started an active period where a lot of old conventional cooking capacity were replaced by new mills.
Opportunities and challenges
From: Forest BioFacts, the digital learning environment and source of in depth information for professionals in pulp and paper and other biomass conversion industries, which is published by the Finnish Forest Products Engineers Association ( www.forestbiofacts.com ). The concept of circular bioeconomy is causing a paradigm shift in global economics. This shift provides the forestry sector with a large portfolio of long-lasting …
Carbon cycle and circular bioeconomy
The main source for new raw materials for circular bioeconomy is the productive biological carbon cycle formed by the biosphere and the atmosphere (Figure 1)
SciTech-Service Oy keeps growing!
We are pleased to announce that SciTech-Service’s biorefinery team has been strengthened by the addition of Topias Anttila. Mr. Topias Anttila, M.Sc., joins as Project Engineer in the Biorefinery team. He recently finished his master thesis in Aalto University, School of chemical engineering. Topias studied Chemical and process engineering with his major in Plant Design and Master’s thesis focused on …
The forest sector and the idea of circular bioeconomy
The idea of bioeconomy is that various human needs and desires are fulfilled by sustainable utilisation of renewable natural resources like forests, increasingly also in substitution for the exploitation of non-renewable fossil resources, such as oil, natural gas and coal.
Soap and turpentine in softwood kraft mills
Panu Tikka wrote a short commentary on one of his old publications: PaT 180721 Tikka, et al.Solving soap and turpentine related process problems in softwood kraft mills.P&P Can, 103(2002)6:T 149, p 30 – 35 In the modern more and more sustainable biobased economy the old obnoxious word “pulp mill” is being replaced by a better expression “ bioproduct plant “ …
Introduction to forest-based bioeconomy
From: Forest BioFacts, the digital learning environment and source of in depth information for professionals in pulp and paper and other biomass conversion industries, which is published by the Finnish Forest Products Engineers Association ( www.forestbiofacts.com ). Introduction to forest-based bioeconomy Wood is a renewable natural material with various uses, and it has always satisfied people’s diverse and ever changing needs. Early hunter-gatherers made …
Return for the future – the rediscovery of rags
The textile industry, most visibly the leading fashion brands and entrepreneurs, are busy with efforts to translate the imperative of textile recycling into profitable business.
Re-visiting another 90’s breakthrough invention
Panu Tikka re-visits another SciTech-Service 90’s patent: “Process for the production of a hemicellulose hydrolysate and special high alpha cellulose pulp”
SciTech at the 15th Cellulose Fiber (Viscose) industry forum
Xiang You and Heikki Hassi ‘s recently participated in the 15th Cellulose Fiber (Viscose) industry forum and their presentation is now fully available. The meeting took place from 25th to 27th May in Hangzhou, China. SciTech ‘s presentation was streamed for all conference participants on the 27th May 2021 at 11:10-11:35 a.m. Chinese time (6:10-6:35 a.m. Helsinki time). The event …
Both DWP and VSF need to perform well in a spinning process
Like a VSF mill, also a DWP mill manufactures cellulosic fibres for their customers’ delicate spinning process.
Re-visiting the patent Process for preparing kraft pulp
Panu Tikka re-visited his patent issued back in 2002 entitled “Process for preparing kraft pulp”. Panu shortly describes his invention and how it affected current pulp mills processes.
Dissolving Pulps in an AC press push the limits of Darcy’s law – what does it mean?
It’s not surprising, then, that for assessing the processability of a certain pulp or a pulp blend in AC pressing, and for comparing various pulps, a “flight simulator”, i.e., a small-scale AC press is necessary.
Scitech at the 2nd International Conference on Cellulose Fibres
Heikki Hassi had the pleasure to present at the 2nd International Conference on Cellulose Fibres. The online event took place on the 2nd to 3rd February. You can watch below Heikki Hassi ‘s presentation regarding the topic “The challenging conversion of natural elementary fibrils into Man-Made Cellulosic Fibres” : You can also download the presentation PDF below: