Study on the Performance of the Zr-Modified Cu-SSZ-13 Catalyst for Low-Temperature NH-SCR.

Cu-SSZ-13 and Zr-modified Cu-SSZ-13 catalysts with different Zr/Cu mass ratios were prepared by ion-exchange and impregnation methods, respectively. The NH-SCR performance tests were performed using the catalyst performance evaluation device to investigate the effects of different Zr/Cu mass ratios on the catalyst ammonia-selective catalytic reduction (NH-SCR) performance. X-ray diffraction, ICP-OES, BET, NH temperature-programed desorption (NH-TPD), H temperature-programmed reduction (H-TPR), X-ray photoelectron spectrometry, and in situ diffuse reflectance infrared Fourier transform spectroscopy (in situ DRIFTS) were used to characterize the catalysts.

Experimental Research on Distribution Characteristics of NO Conversion Efficiency of a Diesel Engine SCR Catalyst.

An experimental investigation of the distribution characteristics of NO conversion efficiency inside a selective catalytic reduction system is presented in this paper. Wash-coated and extruded vanadium-based selective catalytic reduction catalysts were investigated under an ANR (ammonia nitrogen ratio) of 1.0 and various exhaust gas temperature and flow rate conditions.

The correlation between intimate relationship, self-disclosure, and adaptability among colorectal cancer enterostomy patients.

The postoperative physiological changes and psychological pressure of cancer patients affect the patient's adaptability to the disease, and thus affect the spousal intimate relationship. This study aimed to evaluate the correlation between spousal intimate relationship, self-disclosure, and adaptability among colorectal cancer (CCI) patients with enteric stoma.This cross-sectional study selected patients with CCI in Henan Province from February 2018 to October 2020.