Dangote refinery says it has taken delivery of the world’s largest crude distillation column designed for crude oil processing.
The distillation column which arrived yesterday, according to the firm is the largest in terms of its capacity for processing 650,000 barrels per day(bpd) as the world’s largest single train refining column.
The equipment weighs 2250MT; and is 112.5m in length,; 14.036m in width,; and has a height of 13.752m; excluding the weight of its internal trays of approximately. 536 MT.
Capt Rajen Sachar, Head, Maritime and Ports Infrastructure of Dangote Refinery, Capt Rajen Sacher, while taken delivery of the equipment said it is the biggest single-train facility used for crude refining.
The refinery equipment which was manufactured by Sinopec of China is the primary unit processor of crude oil into fuels.
Sachar explained that crude oil consists of various chemical components that have different molecular sizes, weights and boiling temperatures.
He added that the newly acquired distillation column works on the principle of fractional distillation leading to separation of various components in the mixture on the basis of their different boiling points.
“Crude oil enters the top of the column, where the inlet temperature is 165 deg C gradually increasing to 357 deg C at the bottom of the column.
“During this passage the crude and its vapours pass through a complex web of internal trays to increase the contact time and surface area within the column with the hot vapours travelling upwards through bubble caps which allow the vapour to pass through the tray with the cooler liquid flowing downward the column.
When the vapour reaches the height within the column where its boiling point is equal to the temperature of the column at that height it condenses to form a liquid.
The liquid then collects on various trays in the column at differing heights from where it is extracted out of the column. It is therefore critical to control the heat load of the column to optimize the crude crack.
These separated fractions are mainly middle distillates namely, Naphtha, Jet Fuel, Kerosene, Gasoline and Gas Oil,” Sachar added.
The company’s captain said that the refinery when completed will produce Euro-V quality gasoline and diesel, as well as jet fuel and polypropylene, adding that that the crude column will enhance the economy of Nigeria and all neighbouring countries in Africa by making available refined petroleum products meeting world standards emission norms of Euro 5 and Euro 6.
The 2017 audit report of the Auditor-General of the Federation (AuGF) has revealed that the there was an unusual delay in payment of N23,096,824,505 by the Federal Inland Revenue Service (FIRS). According to the report, the audit reviewed records of outstanding tax refunds for the level of compliance with the law on tax refunds. “In the course of ascertaining the appropriateness and accuracy of outflows from tax refund account maintained by both FIRS and OAGF for the year under audit, we observed that FIRS internal processes were not compliant with Section 23(3) of FIRS ACT 2007, “Any tax refund shall be made within 90 days of the decision of the service made to subsection (2) of this section, with the option of setting off against future tax by the tax payer. “The following specific observations were made; applications for tax refund as at 31st December, 2017 stood at N47,436,473,379.94 while amount due for payments on that date stood at N23,096,824,505; the budgetary provision for tax refund in year 2017 was N25,000,000,000; there were delays in approval from management after tax audit. “There were also delays in refund to taxpayer after tax audit and approval stages had been carried out. “This is inconveniencing to tax-payers and impacts on the finances of households and businesses.” As a recommendation, the AuGF, Mr Anthony Ayine, said the Chairman of FIRS was required to ensure that the yearly budgetary provision for tax refund is adequate and that the 90-day time frame for tax refund is met. In another development, out of the revenue of ₦2,407,699,164,056.12 payable to the federation account by the Nigerian National Petroleum Corporation (NNPC), the Corporation deducted the sum of ₦1,332,077,481,384.22 for Joint Venture Cash Call (JVC) before paying the resulting net figure of ₦1,075,621,682,671.90 into the Federation Account. Again, the Department of Petroleum Resources (DPR) collected the sum of ₦733,054,301,173.04 but paid a net figure of ₦706,283,397,141.80 to the Federation Account after deducting excess proceeds on royalty of ₦26,770,904,031.24.