Question: In what year was the chemist who founded Mond gas born?

full_context: Document 1: Claus process: The Claus process is the most significant gas desulfurizing process, recovering elemental sulfur from gaseous hydrogen sulfide. First patented in 1883 by the chemist Carl Friedrich Claus, the Claus process has become the industry standard. C. F. Claus was born in Kassel in the German State of Hessen in 1827, and studied chemistry in Marburg before he emigrated to England in 1852. Claus died in London in the year 1900.
Document 2: Troy Gas Light Company: The Troy Gas Light Company was a gas lighting company in Troy, New York, United States. The Troy Gasholder Building is one of only ten or so remaining examples of a type of building that was common in Northeastern urban areas during the 19th century. It was designed by Frederick A. Sabbaton who was a prominent gas engineer in New York State. Originally sheltering a telescoping iron storage tank for coal gas, the brick gasholder house is an imposing structure from a significant period in the history of Troy. For twenty-seven years the company held a monopoly on the manufacture of illuminating gas in the city.
Document 3: Fireplace insert: Invented in 1896 by Joab R. Donaldson of Oliphant Furnace, Pennsylvania, US, the fireplace insert is a device inserted into an existing masonry or prefabricated wood fireplace. Joab was a 59-year-old coal miner and father of fourteen at the time of his patent. He came upon the idea as a means of using coke (a smokeless fuel made by the destructive distillation of certain types of coal) and incorporating the use of an electric blower to improve the efficiency. The selection of coke and coal tailings as a primary fuel enabled low income families to heat their Appalachian homes with small-size coal that they could easily dig for themselves in their own back yards.
Document 4: Monowitz concentration camp: Monowitz (also called Monowitz-Buna or Auschwitz III) was initially established as a subcamp of Nazi Germany's Auschwitz concentration camp. It was one of the three main camps in the Auschwitz concentration camp system, with an additional 45 subcamps in the surrounding area. It was named after the village of Monowice (German: Monowitz) upon which it was built and was located in the annexed portion of Poland. The SS established the camp in October 1942 at the behest of I.G. Farben executives to provide slave labor for their Buna Werke (Buna Works) industrial complex. The name "Buna" was derived from the butadiene-based synthetic rubber and the chemical symbol for sodium (Na), a process of synthetic rubber production developed in Germany. Various other German industrial enterprises built factories with their own subcamps, such as Siemens-Schuckert's Bobrek subcamp, close to Monowitz in order to profit from the use of slave labor. The German armaments manufacturer Krupp, headed by SS member Alfried Krupp, also built their own manufacturing facilities near Monowitz.
Document 5: Louis Le Chatelier: Louis Le Chatelier (20 February 1815 – 10 November 1873) was a French chemist and industrialist who developed a method for producing aluminium from bauxite in 1855. His son was the well known chemist Henri Louis Le Chatelier. His name is inscribed on the Eiffel tower.
Document 6: Friedrich Paneth: Friedrich Adolf Paneth (31 August 1887 – 17 September 1958) was an Austrian-born British chemist. Fleeing the Nazis, he escaped to Britain. He became a naturalized British citizen in 1939. After the war, Paneth returned to Germany to become director of the Max Planck Institute for Chemistry in 1953. He was considered the greatest authority of his time on volatile hydrides and also made important contributions to the study of the stratosphere.
Document 7: Liquefied natural gas: Liquefied natural gas (LNG) is natural gas (predominantly methane, CH, with some mixture of ethane CH) that has been converted to liquid form for ease and safety of non-pressurized storage or transport. It takes up about 1/600th the volume of natural gas in the gaseous state (at standard conditions for temperature and pressure). It is odorless, colorless, non-toxic and non-corrosive. Hazards include flammability after vaporization into a gaseous state, freezing and asphyxia. The liquefaction process involves removal of certain components, such as dust, acid gases, helium, water, and heavy hydrocarbons, which could cause difficulty downstream. The natural gas is then condensed into a liquid at close to atmospheric pressure by cooling it to approximately -162 °C ; maximum transport pressure is set at around 25 kPa .
Document 8: Bevolo Luci a Gas ed Elettrici: Bevolo Gas and Electric Lights (also called Bevolo or Bevolo Lights) is a family business that manufactures traditional and antique lighting. It was founded in 1945 by Andrew John Bevolo, a craftsman who worked to help build the famous New Orleans Higgins boats for World War II and the first Sikorsky helicopter. It is located in New Orleans' French Quarter. The current owner of Bevolo is Andrew John Bevolo III (Drew Bevolo), the grandson of its founder. The lights Bevolo manufactures are usually made from copper by hand. Bevolo lights are produced by hand-riveting and include copper and brass accessories. The company offers a wide variety of light fixtures, however, Bevolo produces other products as well, e.g. mailboxes.
Document 9: Comgás: Comgás is a Brazilian gas distributor focused on São Paulo state. It is Brazil's biggest gas distributor, with around 1,6 million residential, commercial and industrial customers, as of 2016, who receive gas through about 14.000 km of pipelines. Comgás was founded in 1872. The company had been wholly owned by the São Paulo state-owned power generation utility, "Companhia Energética de São Paulo" until April 1999, when CESP's stake was sold to the British BG Group and to Royal Dutch Shell. Comgas sells gas under a 30 year franchise, with a potential for a further 20 years.
Document 10: Mond gas: Mond gas is a cheap coal gas that was used for industrial heating purposes. Coal gases are made by decomposing coal through heating it to a high temperature. Coal gases were the primary source of gas fuel during the 1940s and 1950s until the adoption of natural gas. They were used for lighting, heating, and cooking, typically being supplied to households through pipe distribution systems. The gas was named after its founder, Ludwig Mond.
Document 11: New River Coalfield: The New River Coalfield is located in northeastern Raleigh County and southern Fayette County, West Virginia. Commercial mining of coal began in the 1870s and thrived into the 20th century. The coal in this field is a low volatile coal, and the seams of coal that have been mined include Sewell, Fire Creek, and Beckley. This is very high quality bituminous coal rated at approximately 15,000 btu . The New River coalfield is named after the north flowing New River. Over 60 coal towns were once located there, supported by independent commercial districts at Beckley, Oak Hill, Mount Hope, and Fayetteville. By the 21st century many coal camps had partially or completely returned to nature. These company towns were located along Dunloup (Loup) Creek, Laurel Creek, White Oak Creek, lower Piney Creek, and, of course, the New River. The mainline of the Chesapeake and Ohio Railway ran right through the center of this coalfield, with spurs branching off in many directions, and rail yards were maintained at Quinnimont, Raleigh, and Thurmond, WV. The Virginian Railway's main line also passed through the western side of the field as well. Companies such as the New River Company, New River & Pocahontas Consolidated Coal Co., and Mary Frances Coal Co. were the largest operators in the New River Coalfield, but there were many smaller ones as well. These companies recruited native born whites, immigrants from Southern and Eastern Europe, and African-Americans from the South to work in their coal mines and railroads. The mines began to close down after World War II and today there are very few active coal mines in the field. The New River Gorge is now the domain of the National Park Service and they have done what their budget allows to preserve the coal heritage of the area.
Document 12: Andrew Carnegie: Andrew Carnegie ( , but commonly or ; November 25, 1835August 11, 1919) was a Scottish-American industrialist.
Document 13: Sir John Brunner, 1st Baronet: Sir John Tomlinson Brunner, 1st Baronet, (8 February 1842 – 1 July 1919) was a British chemical industrialist and Liberal Party politician. At Hutchinson's alkali works in Widnes he rose to the position of general manager. There he met Ludwig Mond, with whom he later formed a partnership to create the chemical company Brunner Mond & Co., initially making alkali by the Solvay process. As a Member of Parliament he represented Northwich, Cheshire, in 1885–1886 and then from 1887–1910. He was a paternalistic employer and as a politician supported Irish Home Rule, trade unions, free trade, welfare reforms and, leading up to the First World War, a more sympathetic stance towards Germany. Brunner was a prominent Freemason, and a generous benefactor to the towns in his constituency and to the University of Liverpool. He is the great grandfather of the Duchess of Kent.
Document 14: AGA AB: AGA AB, previously "AB Gasaccumulator" and "AB Svenska Gasaccumulator", was a Swedish industrial gas company founded in 1904. Nobel Prize laureate Gustaf Dalén was instrumental in the success of the company. Important inventions included the AGA cooker and the Dalén light. In the 1990s AGA conceived and developed HiQ for specialty gases. In 2000, AGA was integrated into Linde AG.
Document 15: Ludwig Mond: Ludwig Mond (7 March 1839 – 11 December 1909) was a German-born chemist and industrialist who took British nationality. He discovered an important, previously-unknown class of compounds called metal carbonyls.
ground_truth: 1839