Sökning: "research chemicals"

Visar resultat 11 - 15 av 309 avhandlingar innehållade orden research chemicals.

1. 11. Transparency within REACH? : Regulatory risk assessment of industrial chemicals

   Författare :Ellen Ingre-Khans; Christina Rudén; Marlene Ågerstrand; Anna Beronius; Jeanne Duus Johansen; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; REACH; chemicals legislation; risk assessment; hazard assessment; transparency; Applied Environmental Science; tillämpad miljövetenskap;

   Sammanfattning : Chemicals provide us with many benefits but can also have adverse effects on human health and the environment. Concerns that previous European legislations were not providing adequate protection from chemical risks resulted in a new chemicals legislation – REACH – in 2007. LÄS MER

3. 12. Assessing the Integration of Biomass Gasification-Based Production of Chemicals — Case Study of an Oxo Synthesis Plant

   Författare :Maria Arvidsson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; chemicals production; biorefinery; gasification; syngas; oxo synthesis; process integration;

   Sammanfattning : The chemical industry sector is energy-intensive and highly dependent on fossil feedstock. The primary long-term option to reduce fossil feedstock dependence and greenhouse gas (GHG) emissions is to switch to renewable feedstock. LÄS MER

4. 13. LIGNIN DEPOLYMERISATION IN NEAR- CRITICAL WATER TO PRODUCE BIOFUEL AND CHEMICALS: EFFECT OF CO-SOLVENT AND pH

   Författare :Tallal Belkheiri; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; green chemicals; biofuel; lignin; catalytic degradation; Biomass valorisation; hydrogen donor; base depolymerisation;

   Sammanfattning : Lignin is a complex three-dimensional amorphous polymer, which, along with cellulose and hemicellulose, forms a main component of biomass. Its main role is in giving strength, rigidity and resistance to degradation. From a chemistry perspective, lignin is an important source of aromatics. LÄS MER

5. 14. Too Enabling to Fail – Ethics and Practices in the Legitimation of Nanotechnology

   Författare :Nicholas Surber; Chalmers tekniska högskola; []
   Nyckelord :HUMANIORA; HUMANITIES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; HUMANIORA; HUMANITIES; enabling technology; responsible research and innovation; legitimation crisis; applied ethics; risk sociology; political economy of research and innovation; research and innovation policy; nanotechnology; technoscientific capitalism; emerging technology;

   Sammanfattning : This thesis reads Beck’s Risk Society in the context of nanotechnology and the politicization of failure in the promise of enabling technologies. It aims to investigate how researchers and innovators legitimate nanotechnology in society. LÄS MER

7. 15. Environmental Assessment of Green Chemicals - LCA of Bio-Based Chemicals Produced Using Biocatalysis

   Författare :Linda Tufvesson; Miljö- och energisystem; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; green chemicals; industrial biotechnology; Life cycle assessment; renewable resources;

   Sammanfattning : It is of at most importance that society reduces its impact on the environment. In the chemical industry the use of renewable resources will play a fundamental role in the transition to more sustainable chemical products. Also industrial biotechnology, i.e. LÄS MER