TNAG-0947-FCO40-1166-Oil-developments-in-and-around-Hong-Kong-1980 — Page 68

霉 'PUNCH' PROJECT

PRELIMINARY REFINING SCHEMES

INTRODUCTION

APPENDIX 1

BP has been approached regarding possible technical and/or financial participation in a new oil refinery hereafter referred to as the Punch Refinery. It is envisaged that this would refine mainly for the local market and, preferably, process a slate with Chinese crude predominating.

This File Note summarises some preliminary refinery schemes calculated to meet the 1990 local product demand advised. The aims were to include a substantial proportion of Chinese crude and meet demand at minimum processing costs.

CRUDE SLATE & PRODUCT QUALITY ASSUMPTIONS

For the purposes of this study, Taching and/or Shengli crudes were assumed to be available for processing. The former crude was used in the schemes since insufficient quality data was available to BP on the latter for making refining estimates. Taching crude quality is reported in the BP Crude Oil Data Book, Assay A/1620, issued in March 1974. crude is of low sulphur, high wax and high residue contents.

The

Quality specifications for the local products were given in Tix's 0702 and 0770, dated 1.2.80 and 5.2.80 respectively, and are summarised in Table 1.

PRELIMINARY REFINERY SCHEMES

1.

Use of wholly Chinese crude, eg Taching, will incur penalties in meeting the proposed middle distillate and fuel oil pour-point specifications (Table 1), on account of the high wax content of the crude. Power Station Fuel Oil (PSFO) could be produced at a pour-point of ca 45°C using Taching atmospheric residue. However, agreement would have to be sought from the Utilities Companies, for supply at this quality since current supplies are below 21°C pour-point. Dewaxing treatment would be required otherwise to meet quality. One possibility could be the catalytic dewaxing process as licensed by both BP and MOBIL.

Assuming no waiver in PSFO pour point can be obtained, Scheme A has been developed using BP catalytic dewaxing to meet middle distillate and fuel oil quality as given in Table 1. Material

.1.