1980 Ruby Yearbook

A digitized copy of the 1980 Ruby, the Ursinus College yearbook.https://digitalcommons.ursinus.edu/ruby/1083/thumbnail.jp

Regional-scale brine migration along vertical pathways due to CO2 injection - Part 1: The participatory modeling approach

Saltwater intrusion into potential drinking water aquifers due to the injection of CO₂ into deep saline aquifers is one of the potential hazards associated with the geological storage of CO₂. Thus, in a site selection process, models for predicting the fate of the displaced brine are required, for example, for a risk assessment or the optimization of pressure management concepts. From the very beginning, this research on brine migration aimed at involving expert and stakeholder knowledge and assessment in simulating the impacts of injecting CO₂ into deep saline aquifers by means of a participatory modeling process. The involvement exercise made use of two approaches. First, guideline-based interviews were carried out, aiming at eliciting expert and stakeholder knowledge and assessments of geological structures and mechanisms affecting CO₂-induced brine migration. Second, a stakeholder workshop including the World Café format yielded evaluations and judgments of the numerical modeling approach, scenario selection, and preliminary simulation results. The participatory modeling approach gained several results covering brine migration in general, the geological model sketch, scenario development, and the review of the preliminary simulation results. These results were included in revised versions of both the geological model and the numerical model, helping to improve the analysis of regional-scale brine migration along vertical pathways due to CO₂ injection

1939 Ruby Yearbook

A digitized copy of the 1939 Ruby, the Ursinus College yearbook.https://digitalcommons.ursinus.edu/ruby/1041/thumbnail.jp

Combining Experiment and Theory to Elucidate the Role of Supercritical Water in Sulfide Decomposition

The cleavage of C–S linkages plays a key role in fuel processing and organic geochemistry. Water is known to affect these processes, and several hypotheses have been proposed, but the mechanism has been elusive. Here we use both experiment and theory to demonstrate that supercritical water reacts with intermediates formed during alkyl sulfide decomposition. During hexyl sulfide decomposition in supercritical water, pentane and CO + CO2 were detected in addition to the expected six carbon products. A multi-step reaction sequence for hexyl sulfide reacting with supercritical water is proposed which explains the surprising products, and quantum chemical calculations provide quantitative rates that support the proposed mechanism. The key sequence is cleavage of one C–S bond to form a thioaldehyde via radical reactions, followed by a pericyclic addition of water to the CS bond to form a geminal mercaptoalcohol. The mercaptoalcohol decomposes into an aldehyde and H2S either directly or via a water-catalyzed 6-membered ring transition state. The aldehyde quickly decomposes into CO plus pentane by radical reactions. The time is ripe for quantitative modelling of organosulfur reaction kinetics based on modern quantum chemistry

1948 Ruby Yearbook

A digitized copy of the 1948 Ruby, the Ursinus College yearbook.https://digitalcommons.ursinus.edu/ruby/1050/thumbnail.jp

1948 Ruby Yearbook

A digitized copy of the 1948 Ruby, the Ursinus College yearbook.https://digitalcommons.ursinus.edu/ruby/1050/thumbnail.jp

The Freshman, vol. 1, no. 15

The Freshman was a weekly, student newsletter issued on Mondays throughout the academic year. The newsletter included calendar notices, coverage of campus social events, lectures, and athletic teams. The intent of the publication was to create unity, a sense of community, and class spirit among first year students. Stories include a notice about the change of shoes issues as part of military uniforms

1907 Ruby Yearbook

A digitized copy of the 1907 Ruby, the Ursinus College yearbook.https://digitalcommons.ursinus.edu/ruby/1010/thumbnail.jp

1968 Ruby Yearbook

A digitized copy of the 1968 Ruby, the Ursinus College yearbook.https://digitalcommons.ursinus.edu/ruby/1071/thumbnail.jp

1908 Ruby Yearbook

A digitized copy of the 1908 Ruby, the Ursinus College yearbook.https://digitalcommons.ursinus.edu/ruby/1011/thumbnail.jp