Question: What colorless fammable gas does Dedar Bayou manufacture?

full_context: Document 1: Aromatic hydrocarbon: An aromatic hydrocarbon or arene (or sometimes aryl hydrocarbon) is a hydrocarbon with sigma bonds and delocalized pi electrons between carbon atoms forming a circle. In contrast, aliphatic hydrocarbons lack this delocalization. The term 'aromatic' was assigned before the physical mechanism determining aromaticity was discovered; the term was coined as such simply because many of the compounds have a sweet or pleasant odour. The configuration of six carbon atoms in aromatic compounds is known as a benzene ring, after the simplest possible such hydrocarbon, benzene. Aromatic hydrocarbons can be "monocyclic" (MAH) or "polycyclic" (PAH).
Document 2: Shell Anacortes Refinery: Shell Oil Products US, a subsidiary of Royal Dutch Shell PLC, operates the Puget Sound Refinery located on March Point outside of Anacortes, WA. The plant is the largest taxpayer in Skagit County and one of the county's largest employers. The refinery has a 145,000 b/d capacity, making it the 52nd largest in the USA, in 2015, with facilities that include a delayed coker, fluid catalytic cracker, polymerization unit and alkylation units. Based on the secondary processing units in place, the facility likely follows a 3-2-1 crack spread. Shell’s refinery produces three grades of gasoline, fuel oil, diesel fuel, propane and butane. This plant is currently the only refinery in Washington state unable to accommodate tight oil via rail. The permitting process is currently underway for the proposed 60,000 b/d unloading capacity of the East Gate Rail Project.
Document 3: 2000 Phillips explosion: At approximately 1:22 p.m. CT on March 27, 2000, an explosion and fire responsible for 1 death and 71 injuries occurred at Phillips Petroleum's Houston Chemical Complex at 1400 Jefferson Road, Pasadena, Texas 77506. The fire produced huge plumes of black smoke that spread over the heavily industrialized Houston Ship Channel and neighboring residential areas.
Document 4: Ethanol: Ethanol, also called alcohol, ethyl alcohol, and drinking alcohol, is a compound and simple alcohol with the chemical formula C2H5OH . Its formula can be written also as CH3 −CH2 −OH or C2H5 −OH (an ethyl group linked to a hydroxyl group), and is often abbreviated as EtOH. Ethanol is a volatile, flammable, colorless liquid with a slight characteristic odor. It is used as a drug and is the principal type of alcohol found in alcoholic drinks.
Document 5: Hess Oil and Chemical: Hess Oil and Chemical Corporation was a company begun in the 1930s by Leon Hess of New Jersey to distribute heating oil. It expanded over the years to include refining and marketing of heating oil and other petroleum products through terminals and gasoline stations. In 1968, Hess Oil and Chemical Corporation merged with Amerada Petroleum Corporation into Amerada Hess Corporation (NYSE: HES). Since 2006, the merged company has been called Hess Corporation. Before the merger, Hess Oil and Chemical developed the Hess Oil Virgin Islands Corporation (HOVIC) Refinery on St. Croix, United States Virgin Islands, at the time the largest oil refinery in the world. After 1998 the refinery built by HOVIC operated under the name HOVENSA. It is a joint venture with PDVSA and is 50% owned by Hess Corporation. HOVENSA announced plans to close later on in the year on January 18, 2012.
Document 6: Isopropyl alcohol: Isopropyl alcohol (IUPAC name propan-2-ol), also called dimethyl carbinol or, incorrectly, isopropanol, is a compound with the chemical formula CHO or CHOH or CHCHOHCH (sometimes represented as "i"-PrOH). It is a colorless, flammable chemical compound with a strong odor. As a propyl group linked to a hydroxyl group, it is the simplest example of a secondary alcohol, where the alcohol carbon atom is attached to two other carbon atoms, sometimes shown as (CH)CHOH. It is a structural isomer of 1-propanol. It has a wide variety of industrial and household uses, and is a common ingredient in chemicals such as antiseptics, disinfectants and detergents.
Document 7: Cyclopentane: Cyclopentane is a highly flammable alicyclic hydrocarbon with chemical formula CH and CAS number 287-92-3, consisting of a ring of five carbon atoms each bonded with two hydrogen atoms above and below the plane. It occurs as a colorless liquid with a petrol-like odor. Its melting point is −94 °C and its boiling point is 49 °C. Cyclopentane is in the class of cycloalkanes, being alkanes that have one or more rings of carbon atoms.
Document 8: Cedar Bayou plant: Cedar Bayou plant is a petrochemical manufacturing facility located in Baytown, Texas. It is the largest U.S. manufacturing facility of Chevron Phillips Chemical Company. The plant operates seven process units on approximately 1,400 acres producing Ethylene, Propylene, Normal Alpha Olefins (NAO), High Density Polyethylene (HDPE), Low Density Polyethylene (LDPE), Linear Low Density Polyethylene (LLDPE), and Polyalphaolefins. Cedar Bayou plant opened in 1963 as Gulf Oil and was sold to Chevron Corp. in 1985. In 2000, Chevron Corp. and Phillips 66 merged their chemical businesses to form Chevron Phillips Chemical Company.
Document 9: Chevron Corporation: Chevron Corporation () is an American multinational energy corporation. One of the successor companies of Standard Oil, it is headquartered in San Ramon, California, and active in more than 180 countries. Chevron is engaged in every aspect of the oil, natural gas, and geothermal energy industries, including hydrocarbon exploration and production; refining, marketing and transport; chemicals manufacturing and sales; and power generation. Chevron is one of the world's largest oil companies; as of 2014 , it ranked third in the Fortune 500 list of the top US closely held and public corporations and sixteenth on the Fortune Global 500 list of the top 500 corporations worldwide. It was also one of the Seven Sisters that dominated the global petroleum industry from the mid-1940s to the 1970s.
Document 10: Ethyl acetate: Ethyl acetate (systematically ethyl ethanoate, commonly abbreviated EtOAc or EA) is the organic compound with the formula CH−COO−CH−CH, simplified to CHO. This colorless liquid has a characteristic sweet smell (similar to pear drops) and is used in glues, nail polish removers, decaffeinating tea and coffee, and cigarettes (see list of additives in cigarettes). Ethyl acetate is the ester of ethanol and acetic acid; it is manufactured on a large scale for use as a solvent. The combined annual production in 1985 of Japan, North America, and Europe was about 400,000 tonnes. In 2004, an estimated 1.3 million tonnes were produced worldwide.
Document 11: Dow Chemical Company: The Dow Chemical Company, commonly referred to as Dow, was an American multinational chemical corporation headquartered in Midland, Michigan, United States, and the predecessor of the merged company DowDuPont. In 2007, it was the second-largest chemical manufacturer in the world by revenue (after BASF) and as of February 2009, the third-largest chemical company in the world by market capitalization (after BASF and DuPont). It ranked second in the world by chemical production in 2014.
Document 12: Ether: Ethers ( ) are a class of organic compounds that contain an ether group—an oxygen atom connected to two alkyl or aryl groups. They have the general formula R–O–R′, where R and R′ represent the alkyl or aryl groups. Ethers can again be classified into two varieties: if the alkyl groups are the same on both sides of the oxygen atom, then it is a simple or symmetrical ether, whereas if they are different, the ethers are called mixed or unsymmetrical ethers. A typical example of the first group is the solvent and anesthetic diethyl ether, commonly referred to simply as "ether" (). Ethers are common in organic chemistry and even more prevalent in biochemistry, as they are common linkages in carbohydrates and lignin.
Document 13: Diethyl ether: Diethyl ether, or simply ether, is an organic compound in the ether class with the formula 2O . It is a colorless, highly volatile flammable liquid. It is commonly used as a solvent in laboratories and as a starting fluid for some engines. It was formerly used as a general anesthetic, until non-flammable drugs were developed, such as halothane. It has been used as a recreational drug to cause intoxication.
Document 14: Ethylene: Ethylene (IUPAC name: ethene) is a hydrocarbon which has the formula C2H4 or HC=CH. It is a colorless flammable gas with a faint "sweet and musky" odour when pure. It is the simplest alkene (a hydrocarbon with carbon-carbon double bonds).
Document 15: LyondellBasell: LyondellBasell Industries N.V. () is a public multinational chemical company with American and European roots, incorporated in the Netherlands, with U.S. operations headquarters in Houston, Texas, and global operations in London, UK. It was formed in December 2007 by the acquisition of Lyondell Chemical Company by Basell Polyolefins for $12.7 billion. LyondellBasell was listed on the New York Stock Exchange on October 14, 2010. Lyondell was delisted from the New York Stock Exchange (formerly NYSE: LYO ) after the acquisition.
ground_truth: Ethylene