1 A NATIONAL HISTORIC CHEMICAL LANDMARK THE HOUDRY PROCESS FOR THE CATALYTIC CONVERSION OF CRUDE PETROLEUM TO HIGH-OCTANE GASOLINE SUN COMPANY MARCUS HOOK, PENNSYLVANIA T h e Office o f P u b l i c O u t r e a c h
2 The Houdry Process Corporation laboratory i n Linwood, Pa. T his booklet commemorates the designation of The Houdry Process for the Catalytic Conversion of Crude Petroleum to High-Octane Gasoline as a National Historic Chemical Landmark. The designation was conferred by the American Chemical Society, a nonprofit scientific and educational organization of 150,000 chemists and chemical engineers. ACS plaques marking the designation were presented to the Sun Company on April 13, 1996, for installation at the Marcus Hook Refinery and the Houdry Laboratories site in Linwood, Pennsylvania. The inscriptions read: "The first full-scale commercial catalytic cracker for the selective conversion of crude petroleum to gasoline went on stream at the Marcus Hook Refinery. Pioneered by Eugene Jules Houdry ( ), the catalytic cracking of petroleum revolutionized the industry. The Houdry process conserved natural oil by doubling the amount of gasoline produced by other processes. It also greatly improved the gasoline octane rating, making possible today's efficient, highcompression automobile engines. During World War II, the high-octane fuel shipped from Houdry plants played a critical role in the Allied victory. The Houdry laboratories in Linwood became the research and development center for this and subsequent Houdry inventions." Acknowledgments: The American Chemical Society gratefully acknowledges the assistance of the scientists and historians who helped us to prepare this booklet, including: G. Alex Mills, ACS Division of Fuel Chemistry; James E. McEvoy, ACS Division of Industrial and Engineering Chemistry; and James J. Bohning of the American Chemical Society, the NHCLP Advisory Committee liaison. This booklet was produced by the ACS Office of Public Outreach. Production Supervisor: Vivian Powers. Layout: Dahlman/Middour Design. Photographs courtesy of the Sun Company and G. Alex Mills. Background: The catalytic cracking unit at Marcus Hook, Pa., Copyright 1996 American Chemical Society
3 TRANSFORMING CRUDE OIL INTO GASOLINE C ommercial production of petroleum began i n Titusville, Pennsylvania, i n T h e internal combustion engine was developed soon after, and the first gasoline-fueled "horseless carriages" appeared o n A m e r i c a n streets i n But since only wealthy people could afford them, there were probably no more than 8000 automobiles i n the U n i t e d States by the turn of the century. Crude petroleum is a complex mixture o f hydrocarbon molecules, compounds containing carbon and hydrogen atoms. Initially, crude petroleum was separated by distillation into fractions distinguished by differences i n their boiling points. Some higher-boiling fractions were used for lighting and some for lubrication, but for many years, little use was found for the gasoline component. As the number of automobiles, trucks, and tractors increased, the demand for gasoline i n creased, and by 1910 when there were 500,000 automobiles a gasoline shortage had developed. I t occurred to a few perceptive inventors that i t might be possible to produce additional gasoline from the unused, higher-boiling petroleum fractions. I n 1913, Dr. W i l l i a m Burton of Standard O i l of Indiana introduced a thermal-cracking procedure that used high temperature and pressure to break down the larger, higher-boiling molecules into the smaller, lower-boiling molecules found i n gasoline. obtained i n 1923, when Standard O i l of Indiana, using a discovery o f Thomas Midgley, Jr., o f General Motors, added tetraethyl lead to gasoline. I n the early 1920s, the French engineer Eugene Jules Houdry began his search for a catalyst to produce gasoline from lignite. A catalyst is a substance that can increase the rate at w h i c h a chemical reaction occurs, without itself being changed. Because it has the potential to produce very selective results, such as the cracking of highboiling petroleum fractions to gasoline, a catalyst can give a particular process a competitive advantage. I n the 1920s, the science of catalysis was still i n its infancy, and the business applications were limited to the hydrogenation of vegetable oils to make butter substitutes, the conversion o f atmospheric nitrogen to make ammonia for fertilizers and explosives, and the conversion of carbon monoxide to make methanol or hydrocarbons. T h e G u l f O i l Corporation had tried to replace the energy-intensive thermal cracking of the higherboiling petroleum fractions w i t h an aluminum chloride catalyst, but the results were n o t economically successful because the cost was too high. I t was recognized that more efficient engine performance could be achieved from a fuel that had a higher "octane rating," the measure of a fuel's efficiency i n a standard engine. The first significant increase i n octane rating was The catalytic cracking unit at Marcus H o o k, 1938
4 THE HOUDRY PROCESS A s an avid participant i n the sport of automobile racing, Eugene Houdry was acutely aware of the importance of high-performance fuels for successful machine performance. A s a Frenchman, Houdry was also aware of the growing need for gasoline i n a country that was deficient i n its o w n petroleum resources. I n 1922, Houdry learned about an exceptional gasoline derived from lignite that was being produced i n a catalytic procedure by E. A. Prudhomme, a pharmacist i n Nice, France. Houdry visited Prudhomme and persuaded h i m to move to Beauchamp, near Paris, where Houdry and some of his business associates financed and set up a laboratory. For the next few years, Houdry worked closely w i t h Prudhomme and others to develop a workable lignite-to-gasoline process. Supported by the French government, Houdry's syndicate built a demonstration plant that processed 60 tons of lignite per day to produce o i l and gasoline. T h e plant started operations i n June 1929, but the results were disappointing and the process was n o t economically competitive. T h e government subsidy was withdrawn, and the plant was shut down i n that same year. During the lignite-to-gasoline process, the solid lignite was initially broken down by heat to produce viscous hydrocarbon o i l and tars then the o i l was further converted by an added catalyst to produce lower-boiling hydrocarbons similar to the gasoline fraction derived from petroleum. A l t h o u g h much emphasis had been placed by others o n nickel-containing catalysts, Houdry discovered that a clay mineral named Fuller's Earth, a naturally occurring aluminosilicate, could convert the o i l derived from lignite to a gasoline-like product. W o r k i n g w i t h this knowledge, Houdry focused his attention o n the application of catalysis to petroleum processing. I n 1930, H. F. Sheets of the Vacuum O i l Company learned of Houdry's promising results using a catalyst to convert vaporized petroleum to gasoline, and invited h i m to come to the U n i t e d States. After a successful trial run, Houdry moved his laboratory and associates from France to Paulsboro, N e w Jersey. T h e Houdry Process Corporation was founded i n 1931, a j o i n t venture of Houdry w i t h his associ- ates at the Vacuum O i l Company. T h a t same year, Vacuum O i l merged w i t h Standard O i l of N e w York to form the SoconyVacuum O i l Company (later M o b i l O i l Corporat i o n ). I n 1933, a 200barrel-per-day Houdry u n i t was put i n operation. But the Great Depression Arthur Pew, Jr., in 1938 had weakened the o i l business. Unable to finance Houdry's work any further, Socony-Vaccuum gave h i m permission to seek support from other petroleum companies. I n late 1933, Houdry met w i t h Sun O i l C o m pany (later Sun Company) president J. Howard Pew and vice president for refining A r t h u r Pew, Jr. Shortly thereafter, Houdry, Socony-Vacuum, and Sun signed a j o i n t development agreement. I n the next few years, the Houdry process underwent further changes, including an innovative method for regenerating the catalyst after a short, ten-minute usage time. These results inspired Socony-Vacuum and Sun to proceed to commercialization. I n A p r i l 1936, Socony-Vacuum converted an older thermal-cracking unit i n Paulsboro into a semi-works unit using the Houdry process. I n March 1937, Sun's new, fully commercial unit went into operation. Processing 15,000 barrels of petroleum per day, this u n i t featured such innovations as a molten-salt heat control technique and motor-operated valves controlled by timers. A l m o s t 50 percent of the product was high-octane gasoline, compared w i t h 25 percent from the more conventional thermal processes. W h e n Arthur Pew, Jr., presented the details of the successful commercial process at a 1938 meeting of the American Petroleum Institute, the industry was astounded. A n article i n Fortune magazine, entitled "Monsieur Houdry's Invention," said Pew "had dropped a bombshell." I n 1940, the first large-scale plant for producing a synthetic silica-alumina catalyst began operations i n Paulsboro.
5 IMPACT OF THE HOUDRY INVENTION T he i n v e n t i o n and development of gasolinefueled motor vehicles has had a profound influence o n human history providing transport for industrial products and employment for millions and determining where and how we live, work, and play. I n the U n i t e d States today, more than half of the 300 m i l l i o n gallons of gasoline used each day to fuel more than 150 m i l l i o n passenger cars is produced by catalytic-cracking technology. H i g h octane gasoline paved the way to high compressionratio engines, higher engine performance, and greater fuel economy. T h e most dramatic benefit of the earliest Houdry units was i n the production of 100-octane aviation gasoline, just before the outbreak o f W o r l d W a r I I. T h e Houdry plants provided a better gasoline for blending w i t h scarce high-octane components, as well as by-products that could be converted by other processes to make more highoctane fractions. T h e increased performance meant that A l l i e d planes were better than A x i s planes by a factor o f 15 petcent to 30 percent i n engine power for take-off and climbing; 25 percent i n payload; 10 percent i n maximum speed, and 12 percent i n operational altitude. I n the first six months of 1940, at the time of the Battle of Britain, 1.1 Sun Oil employees at a wartime rally. IS. World War I I billboard at the Marcus Hook Refinery. m i l l i o n barrels per m o n t h of 100-octane aviation gasoline was shipped to the Allies. Houdry plants produced 90 percent of this catalytically cracked gasoline during the first two years of the war. T h e original Houdry process embodied several innovative chemical and engineering concepts that have had far-reaching consequences. For example, the improvement of the octane rating w i t h catalytic processes showed that the chemical composition o f fuels was l i m i t i n g engine performance. Further, aluminosilicate catalysts were shown to be efficient i n improving the octane rating because they generated more highly branched isoparaffins and aromatic hydrocarbons, w h i c h are responsible for high octane ratings. From an economic standpoint, the catalysts could be regenerated after a short usage time, thus returning the catalyst to full activity w i t h o u t having to add additional material. T h e original fixed-bed Houdry Process units have been outmoded by engineering advances that transformed the fixed-bed to more economical fluidized-bed systems and introduced the use of crystalline aluminosilicate catalysts to provide higher yields of gasoline. Yet i t is remarkable that, seventy years after Houdry's discovery of the catalytic properties of activated clay to convert petroleum fractions to gasoline, the same fundamental principles that made the process a success are still the primary basis for manufacturing gasoline worldwide.
6 EUGENE JULES HOUDRY B towards industrial processes crucial to the war effort. After W o r l d War I I, Houdry formed the Oxy-Catalyst Company and turned his attention to reducing the health risks associated w i t h the increasing amounts of automobile and industrial air pollution. His generic catalytic converter, which greatly reduced the amount of carbon monoxide and unburned hydrocarbons i n automobile exhausts, was granted U.S. Patent 2,742,437 i n Today, catalytic converters made by various companies are standard devices o n all American cars. orn near Paris, France, on A p r i l 18,1892, Eugene Jules Houdry was the son of a wealthy steel manufacturer. He studied mechanical engineering at the Ecole des Arts et Metiers i n Chalons-surMarne, a Paris suburb. He graduated in 1911, earning the French government's gold medal for the highest scholastic achievement i n his class. He was captain of his school's soccer team, which won the championship of France that same year. Houdry joined his father's business, but left for military training, Eugene Houdry in where he was at the outbreak of W o r l d War I. He served i n the French army as a lieutenant i n the tank corps and i n 1917 was seriously wounded i n the battle of Juvincourt, winning the Croix de Guerre for his actions and later becoming a Chevalier of the Legion of Honor. After the war, Houdry rejoined his father at Houdry et Fils, but by 1922 was making his way i n the field of catalytic processes for the conversion of coal and lignite to gasoline. His interest i n high-octane gasoline was fueled by his avid interest i n automobile engines and i n road racing, where he competed i n a Bugatti racing car. I n addition to the process for high-octane gasoline, Houdry also invented a catalytic process for the production of butadiene from the butane gas derived from crude oil production. Butadiene became an important resource during W o r l d War I I. I t was one of the two components used i n the synthetic rubber program initiated after natural rubber supplies were eliminated by the war i n the Pacific. Houdry was outspoken i n his opposition to wartime collaboration w i t h the Germans by the French V i c h y government of Marshall H e n r i Petain. O n May 3, 1941, the Vichy government declared that Houdry had lost his French citizenship. He then became president of the U. S. chapter of "France Forever" an organization dedicated to the support of General Charles de Gaulle, the n o m i n a l head of the French government i n exile and i n January 1942, he became a U n i t e d States citizen. His two sons, Jacques and Pierre, served i n the U n i t e d States A r m y during W o r l d W a r I I, and Houdry directed his efforts Houdry's colorful life was full of great ambitions. His unusually productive career was characterized by unique foresight, bold imagination, creative leadership, persistence and, above all, action. Houdry's contributions to catalytic technology were recognized by numerous awards, including the Potts Medal of the Franklin Institute i n 1948, the Perkin Medal of the Society of Chemical Industry (American Section) i n 1948, the E. V. Murphree Award i n Industrial and Engineering Chemistry of the American Chemical Society i n 1962, and posthumous election to the National Inventors Hall of Fame i n He was awarded honorary Doctor of Science degrees by Pennsylvania Military College i n 1940 and by Grove City College i n I n 1967, the Catalysis Society of N o r t h America established the Houdry Award i n Applied Catalysis Houdry died on July 18, 1962, at the age of 70, survived by his sons and his wife, Genevieve Quilleret. A t that time he was actively working on creative ideas for using catalytic processes to improve human health. Eugene Houdry as a lieutenant in the tank corps of the French army during World War I.
7 SUGGESTED READING Eugene Houdry, W i l b u r F. Burt, A. E. Pew, Jr., and W. A. Peters, Jr. "The Houdry Process." O i l and Gas Journal, Engineering and Operating Section 37 ( N o v. 24, 1938): "Monsieur Houdry's I n v e n t i o n. " Fortune (1938/1939): 56. Eugene J. Houdry. "Practical Catalysis and Its Impact o n Our Generation." I n Advances in Catalysis, V o l. I X, ed. by Adalbert Farkas (New York: Academic Press, Inc., 1957): "Houdry Round-the-Clock Researcher." Chemical & Engineering News (Jan. 12, 1959): cover, 76, 79. Eugene Houdry. "Developpements et Tendances de la Catalyse Industrielle." I n Actes du Deuxieme Congres International de Catalyse (Paris: Technip, 1960): Harold F. W i l l i a m s o n, A r n o l d R. Daum, Ralph L. Andreano, and Gilbert C. Klose. The American Petroleum Industry. Vol.11. The Age of Energy, (Evanston, IL: Northwestern University Press, 1963): A l e x O b lad. "The Contributions of Eugene J. Houdry to the Development of Catalyic Cracking." I n Heterogenous Catalysis: Selected American Histories, ed. by Burtron H. Davis and W i l l i a m P. Hettinger (Washington, D C : A m e r i c a n Chemical Society, 1983): Charles G. Moseley. "Eugene Houdry, Catalytic Cracking, and W o r l d W a r I I A v i a t i o n Gasoline." Journal of Chemical Education 61 ( A u g. 1984): G. A l e x M i l l s. "Catalysis: T h e Craft A c c o r d i n g to Houdry." C H E M T E C H 16 (Feb. 1986): "Eugene J. Houdry." Chemical & Engineering News ( M a r c h 26, 1962): 90. Peter H. Spitz. Petrochemicals: The Rise of an Industry (New York: John W i l e y & Sons, 1988): W. F. Faragher. "Eugene Jules Houdry." Chemistry and Industry (Oct. 27, 1962): James E. McEvoy. "Citizen Houdry." C H E M T E C H 26 (Feb. 1996): THE NATIONAL HISTORIC CHEMICAL LANDMARKS PROGRAM OF THE AMERICAN CHEMICAL SOCIETY T h e A C S N a t i o n a l Historic Chemical Landmarks Program recognizes our scientific and technical heritage and encourages the preservation of historically important achievements and artifacts i n chemistry, chemical engineering, and the chemical process industries. I t provides an annotated roster to remind chemists, chemical engineers, students, educators, historians, and travelers o f an inspiring heritage that illuminates b o t h where we have been and where we might go when traveling the diverse paths to discovery. A C S Historic Chemical Landmarks represent or are closely l i n k e d to seminal achievements i n the chemical sciences and technologies. A site designation marks the location of an artifact, event, or other development of clear historical importance to chemists and chemical engineers. A n historic collection designation marks the contributions of a number of objects w i t h special significance to the historical development of chemistry and chemical engineering. NATIONAL HISTORIC CHEMICAL LANDMARK THE HOUDRY PROCESS Sun Company Marcus Hook, Pennsylvania 1937 The first fufi-scale commercial catalytic i for the selective conversion of crude petrol gasoline went on stream at the Marcus Hook R Pioneered by Eugene Jules Houdry ( , the catalytic cracking of petroleum revolutionized the industry. The Houdry process cons oil by doubting the amount of gasoline produced by other processes. It also greatly improved the gasoline octane rating, making possible today's efficient, high-compression automobile engines. During World War It, the high-octane fuel shipped from Houdry plants played a critical role in the Allied victory. The Houdry laboratories in linwood became the research and development center for this and subsequent Houdry inventions. American Chemical Socii April 13, 19% This program began i n 1992, when the Division of the History of Chemistry of the A C S formed an international Advisory Committee. T h e committee, composed of chemists, chemical engineers, and historians of science and technology, works w i t h the A C S Office of Public Outreach and is assisted by the Chemical Heritage Foundation. Together, these organizations provide a public service by examining, noting, recording, and acknowledging particularly significant achievements i n chemistry and chemical engineering. For further information, please contact the A C S Office of Public Outreach, 1155 Sixteenth Street, N. W., Washington, D. C ; , Ext
8 The American Chemical Society Sun Company R o n a l d Breslow, President Robert H. Campbell, C h a i r m a n, C E O and President Paul S. A n d e r s o n, President-Elect S h e l d o n L. T h o m p s o n, Seniot V i c e President Joan E. Shields, Board C h a i r m a n and C h i e f A d m i n i s t r a t i v e Officer J o h n K C r u m, Executive D i r e c t o r A n n B. Messmore, D i r e c t o r, Public O u t r e a c h J o h n A. Rossi, Marcus H o o k Refinery Manager Historical Site Planning Committee A C S Division of the History of Chemistry S h a n n o n G. Breuer, S u n C o m p a n y Joseph B. Lambert, C h a i r m a n T h e o d o r e A. Burtis, S u n C o m p a n y Harold Goldwhite, Chairman-Elect Beverly M. D o t t a r, S u n C o m p a n y V e r a V. M a i n z, Secretary-Treasurer Eileen A. I m p r i a n o, S u n C o m p a n y James E. Lyons, S u n C o m p a n y A C S Division of Industrial and Engineering Chemistry James E. M c E v o y, A C S D i v i s i o n o f I n d u s t r i a l R a l p h C. Gatrone, C h a i r m a n G. A l e x M i l l s, A C S D i v i s i o n o f Fuel C h e m i s t r y Dale L. Perry, C h a i r m a n - E l e c t S o n i O. O y e k a n, A I C h E, Fuels and N a n c y B. Jackson, Secretary and Engineering C h e m i s t r y Petrochemicals D i v i s i o n D o n a l d R. Beuerman, Treasurer A C S Advisory Committee on National Historic Chemical Landmarks James E. M c E v o y, C h a i t m a n, Public O u t r e a c h C o m m i t t e e Chairman: Ned D. Heindel, Lehigh University James J. B o h n i n g, A m e r i c a n C h e m i c a l Society A C S Division of Fuel Chemistry Jon B. E k l u n d, N a t i o n a l M u s e u m o f D o n a l d C. Cronauer, C h a i r m a n American History Jerald H u f f m a n, C h a i r m a n - E l e c t Yasu Furukawa, T o k y o D e n k i U n i v e r s i t y Larry L. A n d e r s o n, Secretary L e o n G o r t l e r, B r o o k l y n College A n t h o n y V. C u g i n i, Treasurer Paul R. Jones, U n i v e r s i t y o f N e w H a m p s h i r e James W. L o n g, U n i v e r s i t y o f O r e g o n A C S Division of Petroleum Chemistry James F. Brazdil, C h a i r m a n Peter J. T. M o r r i s, N a t i o n a l M u s e u m o f Science and Industry, L o n d o n N o r m a n W. Standish, C h a i t m a n - E l e c t M a r y Jo N y e, O r e g o n State U n i v e r s i t y M i c h a e l W. Potter, Secretary Stanley I. Proctor, Jr., Proctor C o n s u l t i n g Lisa J. N a s h, Treasurer Services D a v i d J. Rhees, B a k k e n Library and M u s e u m Jeffrey L. S t u r c h i o, M e r c k & C o., I n c. A n n C. H i g g i n s, A C S Staff L i a i s o n American Chemical Society 1155 S i x t e e n t h Street, N. W. W a s h i n g t o n, D. C
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