Interface on petroleum product in multi-purpose pipeline system refers to
as the zone of demarcation between two products where mixing occurs.
Generally, interface is a boundary layer, so the boundary between two
products when they are pumped in succession is known as interface.

In Nigeria Petroleum Industries like NNPC (PPMC) make use of multi-purpose
pipeline system. This is where interface comes in petroleum products.
Interface as defined above plays a lot of economics importance in petroleum
product in multi purpose pipeline system three main products were
specifically considered in this research project which also were the main
products in Nigerian petroleum, they are PMS, AGO and DPK. During the
pumping of this products from refinery to depot station, they are not
allowed to get in contact with each other because of lack of tolerance, due
to this, they are pumped in successions and in-between two products in
pipeline, interface solution comes into play the role of intermixing.

The main objective of this research project was to determine the effect of
interface on the quality of products in multi-purpose pipeline. Generally,
interface if properly handled has no effect on the quality of petroleum
products in multi-purpose because it is a product itself, but because of
lack of proper handling, some effects are now uncounted. The chief problem
here is contamination, when interface is not properly handled, it results
to the product, therefore the degree of this product were studied with
distillation unit, flash point tester and hydrometer used to effect the
degree. The distillation unit was used for ASTM 36 test which confirm the
products off or on. Specification various classes of interface were
analyzed, properties and factors affecting interface length were all
considered.

The cost of accomplishment for the research project was N6500.00.

Contaminants which was the major problem on the quality of petroleum
product in multi-purpose system and the methods used in rectifying the
contamination were analyzed in this research project. Some experimental
tests which were carried out to determine the degree of contamination on
which the quality of the petroleum products will be certified, when
compared with that of standard showed only slight difference. As the ASTM
D86 distillation curve was gotten from the ASTM D86 test distillation
carried out on the three grade of products. The curve shows that the higher
the temperature, the more the products vaporized. The effect of pipeline
vandalization on the interface arrival were treated. Alleviation on
contaminants, characteristics, advantages and disadvantages of petroleum
products in multi-purpose pipeline were all treated to improve the quality.

TABLE OF CONTENTS

Title page

Approval page

Letter of transmittal

Dedication

Acknowledgement

Abstract

Table of content

Chapter one

Introduction

Chapter two

Literature review

Historical development

Classes of interfaces

Products characteristics and properties

Factors affecting interface length

Effect of pipeline vandalization on the interface arrival

Advantages and disadvantages of petroleum product pipeline

Contamination limits

Disposal of interface contamination

Contaminants/impurities contained in the products

Methods used in purifying petroleum contaminated product

Chapter three

Experimental procedure

Chapter four

Results

Chapter five

Discussion

Chapter six

Conclusion and recommendation

Chapter seven

Reference

Chapter eight

Appendix