Abstract:
A combination comprising a bed of a particulate copper-containing catalyst and, a guard bed of a particulate composition containing a) lead and/or at least one lead compound that reacts with hydrogen chloride and b) a support therefor. The lead compound is preferably lead nitrate. The combination is of particular utility for the low temperature shift reaction wherein carbon monoxide is reacted with steam to produce hydrogen and carbon dioxide.
Abstract:
A method of an essentially complete elimination of remaining traces of mercury in gases, such as roaster gases containing SO 2 , and which have been treated in a chloride washer for removing elementary Hg,. It is characterized in that the gas is introduced to a scrubber plant where the same is washed with a washing liquid such that any content of gaseous HgCl 2 . The gas is absorbed by the washing liquid and is subjected to a turbulent and mechanical action in the scrubber so as to physically put together any Hg, HgCl 2 and Hg 2 Cl 2 and other compounds of Hg present in particle or drop form into bigger aggregates or agglomerates. Thus formed aggregates or agglomerates and present bigger particles are brought to be separated from the gas and then be collected and removed. The invention may be completed with further steps for the elimination of any remaining mercury.
Abstract:
A packing for liquid chromatography comprising apatite containing at least one of tin and lead, wherein at least the surface of the particles of the packing comprises the apatite containing at least one of tin and lead.
Abstract:
본 발명은 일반적으로 제올라이트-함유 CO 2 제거 흡착제 및 열용량이 20 cal/mol-˚K (83.7 J/(mol·K)) 이상인 10% 이상의 금속 산화물을 포함하는 복합 흡착제에 관한 것이다. 본 복합체는 바람직하게는 순환 흡착 공정에서 다층 흡착 시스템에 사용된다. 본 흡착 시스템은 2개 이상의 층을 포함하며, 여기서 제1 층은 적어도 수증기 제거 흡착제, 예컨대 활성 알루미나이고, 제2 층은 신규한 복합 흡착제이다. 본 흡착 시스템은 바람직하게는 극저온 공기 분리 전에 PSA 사전정제 공정에서 사용된다.
Abstract in simplified Chinese:一种触媒组合,其包含一含铜微粒触媒床,及一位于该触媒床的上游之微粒组合物的防护床,该微粒组合物系包含a)铅及/或一或多种有别于铅氧化物之铅化合物,其系与氯化氢反应,及b)供其使用之载体。此铅化合物以硝酸铅为佳。此组合特别适用于低温转移反应,其中一氧化碳和蒸气反应产生氢气及二氧化碳。
Abstract:
A combination comprising a bed of a particulate copper-containing catalyst and, a guard bed of a particulate composition containing a) lead and/or at least one lead compound that reacts with hydrogen chloride and b) a support therefor. The lead compound is preferably lead nitrate. The combination is of particular utility for the low temperature shift reaction wherein carbon monoxide is reacted with steam to produce hydrogen and carbon dioxide.
Abstract:
A combination comprising a bed of a particulate copper-containing catalyst and, a guard bed of a particulate composition containing a) lead and/or at least one lead compound that reacts with hydrogen chloride and b) a support therefor. The lead compound is preferably lead nitrate. The combination is of particular utility for the low temperature shift reaction wherein carbon monoxide is reacted with steam to produce hydrogen and carbon dioxide.