공정수 내에서 중합을 억제시키는 방법

• Main Authors: WATSON RUSSELL P, GEIJSELAERS CARLO, VACHON JEROME, ZIJL ANTHONI VAN, CUOQ FABRICE, LEEN STEVEN, NEILSON ANDREW R
• Format: Patent
• Language: Korean
• Published: 23.04.2019
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; CRACKING HYDROCARBON OILS; DIFFUSION TREATMENT OF METALLIC MATERIAL; FUELS; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; LUBRICANTS; METALLURGY; MINERAL WAXES; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25; NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; PEAT; PETROLEUM, GAS OR COKE INDUSTRIES; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; TECHNICAL GASES CONTAINING CARBON MONOXIDE; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

본 발명은 열분해 플랜트의 물 재순환 루프내 존재하는 공정수에 의해 야기되는 파울링(fouling)을 저감시키는 방법이 본원에 개시된다. 파울링은 장비 표면 상에서 공정수로부터의 물질의 축적 및 상 분리에 의해서 초래된다. 상기 방법은 제1 중합 억제제 및 제2 중합 억제제의 약 5 ppm 내지 500 ppm의 총량을 공정수에 적용하여, 처리된 공정수를 형성하는 단계를 포함하며, 상기 제1 중합 억제제는 약 0.0001 내지 9의 파이가스(pygas)-물 분배 계수(partition coefficient)를 가지며, 상기 제2 중합 억제제는 약 1000 내지 50,000의 파이가스-물 분배 계수를 갖는다. Disclosed herein are methods for reducing fouling caused by process water present within a water recycling loop of a pyrolysis plant. Fouling is caused by phase separation and accumulation of materials from the process water on equipment surfaces. The method includes applying a total of about 5 ppm to 500 ppm total of a first polymerization inhibitor and second polymerization inhibitor to the process water to form a treated process water, wherein the first polymerization inhibitor has a pygas-water partition coefficient of about 0.0001 to 9 and the second polymerization inhibitor has a pygas-water partition coefficient of about 1000 to 50,000.