Pathways for Co-disposal of Oil Sludge in Cement Kilns under the Dual Carbon Target
HUANG Qing
ZHAO Liqing
LIU Weiwei
Abstract：With the deepening advancement of the"dual carbon"strategy,carbon emission reduction in the cement industry has become a core task for its sustainable development.As hazardous waste generated by the petroleum industry,the harmless and resource-efficient disposal of oil sludge represents a significant challenge in environmental protection.Cement kilns,leveraging their unique advantages of high temperature,large capacity,and alkaline environment,achieve dual benefits of environmental and economic gains in the co-disposal of oil sludge.This paper systematically analyzes the physicochemical properties of oil sludge and details the process flows and emission reduction effects of three mainstream technical pathways:direct pumping disposal,mixed pumping disposal,and disposal after pretreatment and dewatering.It further explores two cutting-edge technological trends—pre-combustion and pyrolysis—and proposes optimization directions to address current challenges such as increased energy consumption and kiln condition fluctuations during disposal.This research provides theoretical support for establishing a clean,low-carbon energy utilization system within the cement industry.
Keywords：cement kilnoil sludgealternative fueldisposal processclean energy
Publication Date：2026-03-25
Online Publishing Date：2026-04-01(First online date of this platform, not the publication date of the document)
Pages：5( 41-45 )