Mass Spectrometry & Spectroscopy

  • Catalytic Studies Performed Using the HT/HP Cell 

Catalytic Studies Performed Using the HT/HP Cell 

Aug 27 2020 Read 827 Times

The HT/HP cell is a cell for transmission and specular reflectance spectroscopy. It has been used for a number of in-situ catalytic studies in accordance with its ability to provide a temperature controlled gaseous environment under which sorption/desorption on solid supported catalysts may be studied. The cell can reach 800°C under a vacuum and be pressurised up to 1000 psi (68.9 bar). Below is just one example of a catalytic study undertaken with the HT/HP cell. Many different catalyst systems can be conveniently studied using the cell.

Work by Zhang et al. investigated the effects of the flue gases sulphur trioxide and sulphur dioxide on Cu/ZSM-5 catalysts for the removal of mercury from power plants [1]. Both SO2 and SO3 are components of flue gases and under real conditions: the latter reacts easily with the water content to produce sulphuric acid, making it difficult to determine whether the effects on catalytic performance are due to SO3 or the sulphuric acid. Their infrared spectroscopy work demonstrated that the SO3 is adsorbed preferentially to SO2 when both co-exist in the reaction atmosphere and that the peaks assigned to SO3 were gradually reduced after the introduction of the mercury.

1.          H. Zhang, J. Liu, Y. Zhang, J. Wang, B. Sun and wei-ping Pan, Promotional effect of sulfur trioxide (SO3) on elemental mercury removal over Cu/ZSM-5 catalyst, Applied Surface Science, 2020, 511, 145604.

 

Reader comments

Do you like or dislike what you have read? Why not post a comment to tell others / the manufacturer and our Editor what you think. To leave comments please complete the form below. Providing the content is approved, your comment will be on screen in less than 24 hours. Leaving comments on product information and articles can assist with future editorial and article content. Post questions, thoughts or simply whether you like the content.

Post a Comment





Digital Edition

LabAsia Buyers Guide 2020

October 2020

In This Edition Articles - Ambient Ionisation MS and GC-MS Analysis and Identification of Aroma Compounds in Agave Based Alcoholic Beverages - How a Chromatographic Method is More Than a Sep...

View all digital editions

Events

West Africa Water Expo

Oct 06 2020 Lagos, Nigeria

VacuumExpo

Oct 06 2020 Digital Forum

FORUM LABO LYON - NEW DATES

Oct 07 2020 Lyon, France

ILMAC

Oct 07 2020 Lausanne, Switzerland

View all events