Products tagged with 'hydrocarbons'

View as

Sort by

Display per page

Available for download

Application of Raman Spectroscopy for Hydrocarbons Characterization

Product Number: 51317--9145-SG

ISBN: 9145 2017 CP

Author: Igor Kosacki

Publication Date: 2017

$20.00

Raman spectroscopy for hydrocarbon speciation is described and recent advances in real time monitoring is highlighted. The vibrational properties of hydrocarbon molecules were modeled using Density Function Theory and results were correlated with Raman spectra.

Available for download

Mitigation Of CRU Heater Tube Carburization By Modified High Heat Transfer Ceramic Cladding Materials

Product Number: 51322-17831-SG

Author: Natalie Hana Frank, Iain Stuart Hall, Paolo Brunello

Publication Date: 2022

$20.00

Common materials employed in catalytic reforming unit tubes are typically resistant to carburization due to protective chromium oxide films, but under low excess oxygen conditions can become compromised and allow carbon penetration and carbide formation at the exposed surface. Embrittlement and material wastage as a result of these mechanisms causes premature failures, with production loss, in addition to shutdown maintenance and replacement costs. Carburization in this environment is simulated in this paper through a pack carburizing method designed to create an environment optimal for diffusing carbon in an ASTM 335 9Cr-1Mo tube material.

Available for download

Predicting Corrosion of Successive Feeds in Distilling Units - An Experimental Approach

Product Number: 51324-20668-SG

Author: Gheorghe Bota; Ishan Patel; Peng Jin; David Young

Publication Date: 2024

$40.00

Cheap heavy crudes become attractive for oil refineries to increase their benefit margins but the corrosivity of heavy crudes compels the refinery engineers to blend them with the more expensive light sweet crudes. Crude oil blends with complex composition including organo-sulfur compounds, fatty acids, nitrogen and chlorine compounds become corrosive when processed at high temperatures due to these reactive species. Therefore, maintaining corrosion control is a constant effort in oil refineries, and it involves the use of dedicated corrosion models combined with specific experimental lab procedures and methods. This work is presenting the practical application of a lab testing procedure used for predicting the high temperature corrosivity of different crude fractions that were run successively for different time periods in a specific “flow-through” apparatus. The testing procedure consists of two distinct phases performed in the same apparatus, at the same temperature, and for different time durations. During the first phase of the test, scales are formed using a distilling fraction on metal samples and further, in the second test phase, these preformed scales on samples are exposed without interruption to a different distilling fraction. Thus, the two successive test phases, each using a different distilling fraction, are associated with the “changing feeds” in the distilling tower. Corrosive effects are evaluated by sample weight loss measured in successive fraction tests and in separate tests performed with each of the selected fractions. Experimental results are compared to predictions of a corrosion model for sulfidation and naphthenic acid corrosion.

Products tagged with 'hydrocarbons'

Application of Raman Spectroscopy for Hydrocarbons Characterization

Mitigation Of CRU Heater Tube Carburization By Modified High Heat Transfer Ceramic Cladding Materials

Predicting Corrosion of Successive Feeds in Distilling Units - An Experimental Approach

Association for Materials Protection and Performance