LO-CAT硫磺回收装置配套系列脱硫催化剂研制与应用

针对天然气脱硫后的酸性气特点和LO-CAT硫磺回收装置工况条件,研制适合LO-CAT硫磺回收装置的配套系列脱硫催化剂。在某企业硫磺回收装置的应用结果表明：该系列脱硫剂脱硫效率高于99.99%,尾气中H2S体积分数低于30 μL/L,硫磺平均产量达到0.8 t/d,满足生产装置要求,具有显著的社会效益和环境效益。     

Synthesis of 2-Substituted Benzimidazol-N-biphenyl Acid and Crystal Structure of 4''''-[(2-n-Propyl-1H-benzimidazol-1-yl)methyl] Biphenyl-2-carboxylate Acid

Nine analogues of telmisartan, 2-substituted benzimidazol-N-biphenyl acid, were designed and synthesized, from substituted benzimidazoles reacted with methyl 4'-(bromomethyl)- -biphenyl-2-carboxylate, then hydrolysis with KOH in MeOH and H2O. Their structures were confirmed by IR, 'H NMR, MS spectroscopy and elemental analysis. The crystal structure of 4'-[(2-n-propyl-1H-benzimidazol-lyl) methyl] biphenyl-2-carboxylic acid was determined by single crystal X-ray diffraction.