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Principles of Catalyst Development
Successful industrial heterogeneous catalysts fulfill several key require ments: in addition to high catalytic activity for the desired reaction, with high selectivity where appropriate, they also have an acceptable commercial life and are rugged enough for transportation and charging into plant reactors. Additional requirements include the need to come online smoothly in a short time and reproducible manufacturing procedures that involve convenient processes at acceptable cost. The development of heterogeneous catalysts that meet these (often mutually exclusive) demands is far from straightforward, and in addition much of the actual manufacturing tech nology is kept secret for commercial re...
Today Is Tomorrow
When Caroline and her husband begin working with civil war refugees in South Sudan and Kenya, they'll discover the deep complexities of American interference abroad, the consequences of striving for perfection in an imperfect world, and above all--the extraordinary grace to be found in the unlikeliest of places.
Catalyst Deactivation 1994
Catalyst Deactivation 1994 was an expansion of earlier, highly successful symposia. The objective of the symposium was to promote a scientific approach of the phenomenon of catalyst deactivation which will contribute to the development of catalysts which are less subject to structural transformations and more resistant to poisons and coke formation. These aspects are dealt with in 12 plenary lectures, 48 oral presentations and 35 poster papers, which were critically selected from an impressive response from some 30 countries. Both fundamental and applied aspects were covered. The deactivation of catalysts in important industrial processes like fluid bed catalytic cracking hydrotreatment, hydrodesulfurization, catalytic reforming, hydrodenitrogenation, steam reforming, hydrodemetallization, hydrocracking, Fischer-Tropsch synthesis, propane dehydrogenation, phthalic anhydride synthesis received considerable attention. Mechanisms of poisoning, sintering and coking were further investigated and modelled and new experimental techniques for the characterization and the quantification of deactivation were also introduced.
Small Mercies
Mercy needs to stand up for herself. She also needs a miracle.Eleven-year-old Mercy lives with her eccentric foster aunts - two elderly sisters so poor they can afford only one lightbulb. A nasty housing developer is eyeing their house, which suddenly starts falling apart - just as Aunt Flora does, too. She's forgetting words, names and even how to behave in public. Mercy tries to keep her head down at school but when a classmate frames her for stealing the school's raffle money, Mercy's teachers decide to take a closer look at her home life. With the help of a neighbour, Mr Singh, who teaches Mercy about Gandhi and his principles of passive resistance, Mercy finds a tool that can help solve her problems. But first, like Gandhi, she needs to stand up for herself. She also needs a miracle. And to summon it she has to find her voice and tell the truth - and that truth is neither pure nor simple. A book that already feels like a classic, Small Mercies holds a strong message for children today. Full of heart, it will shine among the best children's literature for years to come.
Halley's Comet
Pete de Lange must survive as a teenager in a small Natal town during the 1980s, together with his new-found friends, Sarita and Petrus. In a country marked by turmoil and racial conflict, this is not as easy as it seems. Pete and his friends witnessed a horrendous crime, and the perpetrator is on their case. Will justice prevail? In between all of this, Pete must try to make the first rugby team and win the heart of his high-school crush, Renate. This is an excellent Bildungsroman, full of emotion and nostalgia, set in a troubled country where doing the right thing was not always easy.
Principles and Methods for Accelerated Catalyst Design and Testing
High throughput experimentation has met great success in drug design but it has, so far, been scarcely used in the field ofcatalysis. We present in this book the outcome of a NATO ASI meeting that was held in Vilamoura, Portugal, between July 15 and 28, 2001, with the objective of delineating and consolidating the principles and methods underpinning accelerated catalyst design, evaluation, and development. There is a need to make the underlying principles of this new methodology more widely understood and to make it available in a coherent and integrated format. The latter objective is particularly important to the young scientists who will constitute the new catalysis researchers generation...
The History of Man
Emil Coetzee, a civil servant in his fifties, is washing blood off his hands when the ceasefire is announced. Like everyone else, he feels unmoored by the end of the conflict. War had given him his sense of purpose, his identity. But why has Emil’s life turned out so different from his parents’, who spent cheery Friday evenings flapping and flailing the Charleston or dancing the foxtrot? What happened to the Emil who used to wade through the singing elephant grass of the savannah, losing himself in it? Prize-winning novelist Siphiwe Gloria Ndlovu traces Emil’s life from boyhood to manhood – from his days at a privileged boarding school with the motto ‘It is here that boys become the men of history’, to his falling in love with the ever-elusive Marion, whose free-spirited nature has dire consequences for his heart – all the while showing how Emil becomes a man apart. Set in a southern African country that is never named, this powerful tale of human fallibility – told with empathy, generosity and a light touch – is an excursion into the interiority of the coloniser.
Madame Livingstone: The Great War in the Congo
The meeting of two men, in a war that is not theirsIn Central Africa during the First World War, aviator Gaston Mercier, lieutenant in the Royal Belgian Army, was responsible for sinking a German battleship on Lake Tanganyika. To find out its exact position, he is assigned a somewhat special guide ... The latter, an enigmatic half-breed in kilt who seems much more educated than the other natives, claims to be the son of the famous explorer David Livingstone. Little by little, while the war between Belgian and German colonial powers is raging in the heart of the black continent, the young Belgian pilot will try to learn a little more about the history of this man who is called "Madame Livingstone" .Based on an Apollo story, Christophe Cassiau-Haurie mixes adventure and friendship here against the backdrop of World War I in Africa. The Congo's unique magnificence is presented in full color illustrations by Congloese artist Barly Baruti.
Catalyst
Covers eleven stories from Australia that show how one person can be a catalyst for change.
