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Royal Dutch Shell plc , commonly known as Shell, is an Anglo–Dutch multinational oil and gas company headquartered in the Netherlands and incorporated in the United Kingdom. Created by the merger of Royal Dutch Petroleum and UK-based Shell Transport & Trading, and as of 2014 it is the fourth largest company in the world, in terms of revenue, and one of the six oil and gas "supermajors".Shell is also one of the world's most valuable companies. As of January 2013 the largest shareholder is Capital Research Global Investors with 9.85% ahead of BlackRock in second with 6.89%. Shell topped the 2013 Fortune Global 500 list of the world's largest companies. Royal Dutch Shell revenue was equal to 84% of the Netherlands's $555.8 billion GDP at the time.Shell is vertically integrated and is active in every area of the oil and gas industry, including exploration and production, refining, distribution and marketing, petrochemicals, power generation and trading. It has minor renewable energy activities in the form of biofuels and wind. It has operations in over 90 countries, produces around 3.1 million barrels of oil equivalent per day and has 44,000 service stations worldwide. Shell Oil Company, its subsidiary in the United States, is one of its largest businesses.Shell has a primary listing on the London Stock Exchange and is a constituent of the FTSE 100 Index. As of 6 July 2012, it was the largest company on the FTSE, with a market capitalisation of £140.9 billion. It has secondary listings on Euronext Amsterdam and the New York Stock Exchange. Wikipedia.


Patent
Royal Dutch Shell | Date: 2015-04-08

Presented is a method for preparing a gas separation membrane system. This method involves depositing a membrane layer of gas-selective metal upon a tubular porous support followed by annealing the resulting layer of gas-selective metal. The resulting annealed membrane layer of gas-selective material is polished under a controlled polishing condition with an abrading medium that includes a structured abrasive article comprising a backing having bonded thereto an abrasive layer comprising a plurality of shaped abrasive composites that comprise abrasive grains dispersed in a polymeric binder. Another layer of gas-selective metal is then deposited upon the tubular porous support. The cycle of annealing, polishing and depositing is repeated through one or more cycles until a leak-tight membrane system is provided.


Patent
Royal Dutch Shell | Date: 2015-08-13

Since biomass is always accompanied by caustic inorganic materials, we have found that the formation of the anion salt of -hydroxysulfonic acid represent the largest loss of the -hydroxysulfonic acid in the potential reversible acid pretreatment process. By titrating the -hydroxysulfonic acid salt with strong mineral acid and then reverting the alfa-hydroxysulfonic acid as its primary components, the acid components can be recovered substantially quantitatively.


Patent
Royal Dutch Shell | Date: 2015-04-08

Methods for preparing a gas separation membrane system can include depositing a gas-selective membrane layer upon a surface of a tubular porous support, annealing the gas-selective membrane layer to form an annealed gas-selective membrane layer, polishing the annealed gas-selective membrane layer under a controlled polishing condition to form an abraded membrane surface, depositing another gas-selective membrane layer upon the abraded membrane surface of the tubular porous support, and successively iterating the annealing, polishing and depositing operations until a leak-tight membrane system is formed. The controlled polishing condition comprises utilizing a rotary fibrous buff that includes a plurality of abrasive particles adhered to a fibrous support with a polymeric binder.


Methods and systems for transferring feed materials between zones having substantially different pressures, where the transfer can be continuous or semi-continuous. The methods and systems include a plurality of lock hoppers to receive feed material from a low pressure zone and pressurize it with fluid to a pressure of a high pressure zone. The pressurized material can be discharged to a circulation loop, which carries the pressurized material to one or more receiving unit(s) of a pressurized system. At least some feed material remains in the receiving unit(s) and at least a portion of the fluid exits to become part of the circulation loop. After discharge, the lock hoppers can be depressurized so the next pressurization cycle can begin with additional feed material. The lock hoppers can be operated in a time-staggered manner to provide continuous or semi-continuous transfer of material.


Patent
Royal Dutch Shell | Date: 2015-09-03

This invention provides microbial organisms, particularly yeasts such as

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