Tag: RATE

The widespread problem of soil micronutrient deficiency has come under the spotlight in recent years. We look at the range of specialist fertilizer products able to tackle micronutrient deficits in crops and soils.

We profile a selection of innovative speciality products and agronomic technologies that have recently been brought to market.

ICL Group has launched an interactive online advisory forum for farmers and agronomists.

Sulphur is becoming an increasingly important crop nutrient – due to a combination of lower sulphur emissions, the increasing prevalence of high-analysis fertilizers and higher cropping intensity.

Following the publication of the 2020 nitrogen project listing by our sister magazine Nitrogen+Syngas, we profile a selection of leading nitrogen projects and their process licensors. Australia, Egypt, India, Nigeria and Russia have been key countries for new project developments.

A look at the major factors influencing the sulphur market around the world.

BASF has developed a new generation of promoter system compatible with MDEA solutions named OASE® yellow. The new promoter system increases the selectivity and capacity of the amine solvent, resulting in improved performance of tail gas treating units and allowing the processing of more sour crudes. A. Kern and G. Vorberg of BASF discuss two case studies demonstrating the benefits of OASE yellow.

When producing from shale reservoirs, technologies such as horizontal drilling and hydraulic fracturing have been used successfully to access hydrocarbons that otherwise could not be. A less publicised issue in producing from certain hot shale gas reservoirs (T > 100°C) is the presence of H2 S and organo-sulphur compounds in the production fluids. In trying to understand the non-biogenic sources of H2 S, Alberta Sulphur Research Ltd has been involved in studying the decomposition of chemicals used in hydraulic fracturing when exposed to high temperature and high pressure.R.A. Marriott, J.J. Marrugo-Hernandez and R. Prinsloo of ASRL discuss the findings of the study.

With the ongoing changes in gas field and refinery feedstock compositions, many sulphur recovery units around the world are facing turndown scenarios to such an extent that it is difficult to meet stringent environmental regulations. Equipment and instrumentation behave differently under turndown conditions, and not always in ways that are desirable. Start-ups and shutdowns can place demands on the equipment that are more severe than years of normal operation. In this article, Optimized Gas Treating, Sulfur Recovery Engineering and Comprimo share some of their learnings and experiences of these scenarios.

Haldor Topsoe has launched a new methanol synthesis catalyst, MK-181 PRIME, based on new technology developed via close study of copper-zinc interactions on the catalyst surface.