Recycling of Spent Moleclular Sieves from Oil and Gas Industry: North Gas Company As a Case Study


Molecular sieves are used over a wide range of applications in industries especially in petroleum and gas processing plants. There is a huge amount, tenths of tons to be disposed annually by oil and gas companies, sometimes in a non-safe way. These materials when they are disposed under non regulations, it will have harmful impact on the environment. In Iraq, these materials are disposed unsafely and there are no procedures and regulations that are imposed for safe handling and managing of them. This being the case, in this study the spent molecular sieves from North Gas Company (NGC) used to replace the ordinary Portland cement (OPC) in the process of concrete production. Based on the compressive strength test results of the concrete the spent molecular sieves can be used to replace the OPC by up to 15% of spent molecular sieves. The concrete specimens are well complies with the Iraqi Standard IQS 5:1984. Moreover, this method can be more cost-efficient than conventional disposal and land filling process for this type of solid wastes.

Meeting Name

International Conference on Environmental Impacts of the Oil and Gas Industries: Kurdistan Region of Iraq as a Case Study (2017: Apr. 17-19, Koya-Erbil, Iraq)


Chemical and Biochemical Engineering

Keywords and Phrases

Cements; Compressive Strength; Concretes; Environmental Impact; Gas Industry; Gases; Molecular Sieves; Portland Cement; Public Utilities; Safe Handling; Sieves; Waste Disposal; Concrete Productions; Gas Processing Plant; Impact on the Environment; Natural Gas Dehydration; Oil and Gas Companies; Oil and Gas Industry; Ordinary Portland Cement; Soild Wastes; Gas Plants

International Standard Book Number (ISBN)

978-1-5090-3062-0; 978-1-5090-3972-2

Document Type

Article - Conference proceedings

Document Version


File Type





© 2017 Institute of Electrical and Electronics Engineers (IEEE), All rights reserved.

Publication Date

01 Apr 2017