An oil refinery or petroleum refinery is an industrial process plant where petroleum (crude oil) is transformed and refined into useful products such as gasoline (petrol), diesel fuel, asphalt base, fuel oils, heating oil, kerosene, liquefied petroleum gas and petroleum naphtha. Petrochemicals feedstock like ethylene and propylene can also be produced directly by cracking crude oil without the need of using refined products of crude oil such as naphtha. The crude oil feedstock has typically been processed by an oil production plant. There is usually an oil depot at or near an oil refinery for the storage of incoming crude oil feedstock as well as bulk liquid products. In 2020, the total capacity of global refineries for crude oil was about 101.2 million barrels per day.

Oil refineries are typically large, sprawling industrial complexes with extensive piping running throughout, carrying streams of fluids between large chemical processing units, such as distillation columns. In many ways, oil refineries use much of the technology and can be thought of, as types of chemical plants. Jamnagar Refinery is the largest oil refinery, since 25 December 2008, with a processing capacity of 1.24 million barrels (197,000 m3). In Gujarat, India, it is owned by Reliance Industries. Some modern petroleum refineries process as much as 800,000 to 900,000 barrels (12,000 to 143,000 cubic meters) of crude oil per day

An oil refinery is considered an essential part of the downstream side of the petroleum industry.

The industry is usually divided into three major components: upstream, midstream, and downstream. Upstream regards exploration and extraction of crude oil, midstream encompasses transportation and storage of crude, and downstream concerns refining crude oil into various end products.

There are many stages in crude oil / feed processing to extract the final products like :- distillation, hydro-processing, reforming, cracking & blending etc. Precise pressure / temperature control determines the quality of the final product. During these processes many utilities are used like Air, Nitrogen, LPG, Water, Steam etc & our products are used extensively in these applications.

Also, the storage tanks that store hazardous chemicals & finished products in refinery & petrochemical complex, use our specially developed inert gas blanketing systems which are used as per safety / process requirements.

Nirmal specialises in offering the solutions for pharmaceutical industry with the proven products like Gas Pressure Regulators, Centrifuge Blanketing Solution, Solution for Industrial Gases, Steam Pressure Reducing Valve, Tank Blanketing Solutions & Protection Devices, Safety Relief Valve, etc.