The paper outlines methods to optimize energy consumption and minimize hydrocarbon losses in refineries. In doing so, a site will benefit from lower operating costs and a reduction in CO2-emissions and hydrocarbon releases to the atmosphere. An energy consumption and hydrocarbon losses base line for a site can be established using a Corrected Energy and Loss (CEL) Index methodology. This process also highlights opportunities for improvement within the processing units, off-plots, utilities, and overall energy management.
Scope for improvements can be found in the areas of procedures, practices, maintenance, as well as, in the design of the hardware. Areas for loss abatement can range from simple good housekeeping to the installation of hardware, such as, vapour recovery systems. As part of our proprietary Pacesetting Programme, a Shell Energy and Loss (SEAL) Study is used to optimise energy consumption and minimize hydrocarbon losses. The module has proven very successful with more than 10 studies being completed during the last four years, whereby benefits have been identified in the order of US¢15/bbl (on average). Keys for success in realizing the benefits include: full involvement of site personnel, as well as, strong follow-up support during implementation. identification of opportunities for improvement
with a potential value of up to US$ 1.50/bbl.
This paper concentrates on the energy Low refining margins, oversupply, module of the program, which, because of the slumping demands, deregulation and fierce connection between energy consumption and competition are of the order of the day, as they CO2-emission, addresses both energy and have been, for a number of years already. Five environmentally efficient operation. Reaching years ago, in response to these pressures, a high "Pacesetting Performance" in respect of impact program was designed to assist refineries energy and loss, desirable from a simple and gas plants in making rapid and sustainable economic point of view, carries with it the improvements in operational performance. To reward of also performing in an environmentally date, for Shell refineries and gas plants over responsible way.
US$ 1billion of annual improvement opportunities have been identified and over 50% ENERGY USE IN REFINERIES of these have been realised. The program is based on a fundamental premise of "sweating 1.1. Historical perspective the assets", focusing on identifying opportunities that require no or very little capital In the early days of refining oil was cheap and investment. hence energy was cheap, and therefore not much The Shell Pacesetting Programme atten
