Present work deals with management of the sludge deposited at the bottom of the crude oil storage tanks. As a routine practice, this sludge is disposed of by land-filling and during its bioremediation it can quite likely emit methane gas with much higher global warming potential than that of carbon dioxide. Further loss is involved in this disposal method is that of valuable hydrocarbon cuts, and as we report here, exceeding 90 wt% of the sludge comprises of these hydrocarbons. The management term mentioned in the beginning, refers to recovery of hydrocarbons afforded by zeolite catalysed cracking of the sludge and simultaneously, eliminating methane emission. Experiments were carried out using N₂ or H₂ as carrier gas and using parent and desilicated ZSM-5 and parent and dealuminated zeolite Y (with or without Pt impregnation) at 500 °C and 1 atm pressure. Products were clubbed according to carbon number range corresponding to gasoline, kerosene, gas oil/heavy oil, paraffin wax, and asphaltene/bitumen. Catalytic cracking served a more useful purpose affording higher proportion of valuable lighter products as compared to thermal cracking. The product distributions have been explained on the basis of catalyst properties. Coking behavior of the catalysts also has been briefly discussed.

目前的工作涉及沉积在原油储罐底部的污泥的管理。作为常规做法，这些污泥通过填埋处理，在其生物修复过程中，它很可能会排放出比二氧化碳高得多的全球变暖潜势的甲烷气体。这种处理方法涉及的进一步损失是有价值的碳氢化合物切割，正如我们在此报告的那样，超过 90% 的污泥包含这些碳氢化合物。开头提到的管理术语是指通过沸石催化裂解污泥回收烃，同时消除甲烷排放。使用 N ₂或 H ₂进行实验作为载气，在 500 °C 和 1 个大气压下使用母体和脱硅 ZSM-5 以及母体和脱铝沸石 Y（有或没有 Pt 浸渍）。根据对应于汽油、煤油、瓦斯油/重油、石蜡和沥青质/沥青的碳数范围将产品打成棒状。与热裂化相比，催化裂化提供了更高比例的有价值的轻质产品，起到了更有用的作用。已根据催化剂特性解释了产物分布。还简要讨论了催化剂的结焦行为。