新款爱普生StYIUS Pro GS6000，是用于户外或室内标牌的1626mm的宽幅数码印刷机。爱普生公司称，此新款机给溶剂型印刷机带来了前所未有的色域、图像质量、生产力和安全性。公司称本机关键在于爱普生新型的UltraChrome GS环保溶剂油墨...新款爱普生StYIUS Pro GS6000，是用于户外或室内标牌的1626mm的宽幅数码印刷机。爱普生公司称，此新款机给溶剂型印刷机带来了前所未有的色域、图像质量、生产力和安全性。公司称本机关键在于爱普生新型的UltraChrome GS环保溶剂油墨，不含镍化合物，减少了挥发性有机化合物；其实质上是无味的，这就省去了昂贵的通风和空气净化设备。展开更多
The effect of mixed oxide support on the performance of Ni/ZnO in the reactive adsorption desulfurization(RADS) reaction was investigated in a fixed bed reactor by using thiophene as the sulfur-containing compound in ...The effect of mixed oxide support on the performance of Ni/ZnO in the reactive adsorption desulfurization(RADS) reaction was investigated in a fixed bed reactor by using thiophene as the sulfur-containing compound in the model gasoline. A series of oxide supports for Ni/ZnO were synthesized by the co-precipitation method and characterized by XRD, N_2-adsorption, TPR and NH_3-TPD techniques. It was found that the desulfurization capacity of Ni/ZnO was enhanced greatly when active components were supported on the proper mixed oxide. Ni/ZnO supported on oxides exhibited much higher desulfurization efficiency and sulfur adsorption capacity than the unsupported Ni/ZnO and the synthesized Ni/ZnO-SA adsorbent exhibited the highest efficiency for thiophene removal. The higher desulfurization activity and sulfur capacity of Ni/ZnO supported on SiO_2-Al_2O_3 with small particle size, high specific surface area and large pore volume could promote the high dispersion of active metal phase and the transfer of sulfur to ZnO with lower mass transfer resistance. γ-Al_2O_3 species could weaken the interaction of active phases and SiO_2 as well as could increase greatly the amount of weak acids. Therefore, these oxides could impose a great influence on the structure and chemical properties of the catalyst.展开更多
文摘新款爱普生StYIUS Pro GS6000，是用于户外或室内标牌的1626mm的宽幅数码印刷机。爱普生公司称，此新款机给溶剂型印刷机带来了前所未有的色域、图像质量、生产力和安全性。公司称本机关键在于爱普生新型的UltraChrome GS环保溶剂油墨，不含镍化合物，减少了挥发性有机化合物；其实质上是无味的，这就省去了昂贵的通风和空气净化设备。
基金financially supported by the National Natural Science Foundation of China(No.21276086)
文摘The effect of mixed oxide support on the performance of Ni/ZnO in the reactive adsorption desulfurization(RADS) reaction was investigated in a fixed bed reactor by using thiophene as the sulfur-containing compound in the model gasoline. A series of oxide supports for Ni/ZnO were synthesized by the co-precipitation method and characterized by XRD, N_2-adsorption, TPR and NH_3-TPD techniques. It was found that the desulfurization capacity of Ni/ZnO was enhanced greatly when active components were supported on the proper mixed oxide. Ni/ZnO supported on oxides exhibited much higher desulfurization efficiency and sulfur adsorption capacity than the unsupported Ni/ZnO and the synthesized Ni/ZnO-SA adsorbent exhibited the highest efficiency for thiophene removal. The higher desulfurization activity and sulfur capacity of Ni/ZnO supported on SiO_2-Al_2O_3 with small particle size, high specific surface area and large pore volume could promote the high dispersion of active metal phase and the transfer of sulfur to ZnO with lower mass transfer resistance. γ-Al_2O_3 species could weaken the interaction of active phases and SiO_2 as well as could increase greatly the amount of weak acids. Therefore, these oxides could impose a great influence on the structure and chemical properties of the catalyst.
