© 2021 Endeavor Business Media, LLC. The textual research is conducted among all contents of the website: titles of the posts, contents of the pages and documents, indexed contents associated to documents, classification categories,… Be careful with the spelling of the searched terms and expressions. The fire was only brought under control at 3:30 pm the next day. Upon arriving at the scene, fire-fighters were notified by company technicians of a tank explosion risk. Shanghai Huayi Acrylic Acid Co., Ltd (Brief in SHAA) was founded on August 13th 1991, which is a petrochemical joint venture by Shanghai Huayi Group and SINOPEC Assets Operation & Management Co., Ltd, with the share ratio of 9: 1. You will also be kept current on how proven technologies such as respirators, safety management systems and gas detectors are being updated and enhanced to provide additional layers of safety. The aim of the present study is to gain a better understanding of the reaction mechanisms of Michael addition oligomers of acrylic acid (MAO) during a runaway polymerization on the basis of thermal and … 6 schools and near by town were evacuated 1992 USA Fire and explosion in acrylic resin manufacturing plant 1997 USA Reactor overheated and runaway. The tank’s cooling capacity had not been taken into account as a safety factor, due to the concentration of inhibitor in the liquid and the presence of a steam heating regulation system; hence, the temperature of the liquid upstream of the tank inlet had not been checked either; This regulation system had been disassembled shortly prior due to repeated malfunctions, yet without performing any analysis of safety-related consequences; Technicians were not given any up-to-date operating procedures and start-up of the upward circulation system had only occurred on an exceptional basis during the previous 2 years (subsequent to a process modification), with just a single information panel placed 15 m from the technician’s station indicating the need to open the system for large storage volumes; The importance of tracking temperature in the tank had not been registered due to high inhibitor content in the liquid combined with low volumes during normal operations, which explains the absence of instruments and continuous control instructions; A lack of internal feedback, given that an incident of accidental AA polymerisation had occurred on the same type of tank in another unit in 1994, but only tanks receiving liquids from a column bottom at over 80°C had been fitted with continuous measurement devices; The previous incidents of polymerisation had been controlled by means of sprinkling water, leading to the belief that polymerisation could be controlled similarly. The entire site was closed, in accordance with an administrative order, for a full month and the unit affected was closed for 9 months, causing a 10% drop in the world’s acrylic acid production capacity. In several cases, explosions due to excessive or inadvertent heating of the vessel have occurred. Michael addition reaction of acrylic acid has caused thermal runaway of acrylic acid, thereby causing many explosion and fire accidents in the chemical industries. On a commercial scale, acrylic acid is mainly produced from the oxidation of propylene or propane derived from petroleum or natural gas — both nonrenewable fossil carbon-based starting materials. Several case histories of Acrylic Acid explosions were reported when procedures for proper handling or storage were disregarded. ACRYLIC ACID may polymerize violently by spontaneous chemical reaction, especially when frozen acid is partially thawed (freezing point 13° C). Three days after a deadly chemical explosion in Pasadena, a Deer Park, Texas, chemical plant storage tank containing acrylic acid overheated. In 2012, an explosion and subsequent fire occurred in a chemical plant in Japan, killing one person and injuring 36. Abstract On May 18, 2001 a destructive fire and explosion accident occurred in an acrylic resin manufacturing plant located in the northern part of Taiwan. Although the company said the fumes were dissipating quickly, it hired industrial hygienists to monitor air in the area. File last update : October 2013 Page 1. Officials said a pressure-relief device in the tank was releasing less than 100 pounds of acrylic acid vapor per hour to prevent a pressure buildup in the tank. The investigation report (Nippon shokubai Co., Ltd., 2013) stated that the runaway polymerization of acrylic acid occurred in its intermediate storage tank. In every issue, we look at the impact that technologies—both proven and emerging—are having on workplace safety. A process for producing acrylic acid from propylene through acrolein as an intermediate by catalytic vapor phase oxidation, which comprises passing a starting reactant gas mixture containing propylene, a molecular oxygen-containing gas and steam through a first-stage reactor packed with a molybdenum-containing multi-component catalyst, passing the resulting … The fire then spread to the nearby equipment and buildings such as acrylic acid tanks, toluene tank and fire engines. Acrylic Acid, Acrylic Acid, Acrylic Acid, Acrylic Acid, Methyl Ester Ethyl Ester n-Butyl Ester 2-Ethylhexyl Ester CA Registry Number 96-33-3 140-88-5 141-32-2 103-11-7 Chemical Formula CH 2=CHCOOCH 3 CH 2=CHCOOC 2H 5 CH 2=CHCOOC 4H 9 CH 2=CHCOOCH 2CH-(C 2H 5)C 4H 9 Stoichiometric Formula C 4H 6O 2 C 5H 8O 2 C 7H 12O 2 C 11H 20O 2 It is possible to refine the results by excluding a term, by adding "-" or "NOT" in front of it. On May 18, 2001 a destructive fire and explosion accident occurred in an acrylic resin manufacturing plant located in the northern part of Taiwan. To start your subscription, please fill out the form below. Log in and complete your "search preferences" to take advantage of enhanced functionalities : Emergency preparedness and response / Intervention techniques / Communication, Works /Stop and restart phases / Degraded phases, Agriculture, agri-food and forest industries, Petroleum refining / Storage and distribution of petroleum products, Steel industry / Metalworking industry / Surface treatment, Transportation (TDG rail/road/sea, pipelines), Explosion and fire on an acrylic acid tank at a chemical plant. The normal temperature range is 84 to 122 degrees. The liquid stemming from the bottom of a column had been heated to prevent it from solidifying during a transfer taking place at 100°C instead of the 60°C planned prior to storage; The system used to re-circulate liquid from the tank bottom, where it was cooled by upward movement in order to stabilise temperature, had not been activated during the 77 hours of filling preceding the accident, thus triggering a thermal runaway reaction of AA despite the high inhibitor content in the liquid; The technician was not equipped with any way to continuously monitor tank temperature, nor was he given any operating guidelines relative to temperature monitoring, which explains the delayed response; Since this scenario had not been anticipated, no efficient means of controlling the reaction were made available, as sprinkling the tank proved ineffectual given that it was heat insulated; No instructions for responding to this type of accident had been provided. 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