Petroleum Products QC

11/11/2017 - rjpatelioc_Petroleum - blog posts upto Jun2017 Rjpatelioc        https://rjpatelioc-petroleum.blogspot.in/ Author's Profile Petroleum QC Blog,  posts upto 11 Nov 2017. 26/06/2017 - LPG, CNG, LNG, NGL, PNG - Petroleum terms understanding https://rjpatelioc-petroleum.blogspot.in/2017/06/lpg-cng-lng-ngl-png-petroleum-terms.html There is no doubt tomorrow's energy needs will be totally derived from nature that's Solar, Wind and Hydro however, may be before this now is the time of Gas fuels for next two decades at least. Every day we hear petroleum terms like LPG, CNG, LNG, NGL, PNG etc and get rather confuse   22/06/2017 - Myth - Flash point test methods are designed for kerosene contaminated with Gasoline ... part 10 of X   Facts – False.   Standard test methods ASTM D56, ASTM D93, IP 170 etc are prepared for Kerosene samples which are not contaminated with Gasoline/Naphtha. http...

-  LPG, CNG, LNG, NGL, PNG  -  Petroleum terms understanding  There is no doubt tomorrow's energy needs will be totally derived from nature that's Solar, Wind and Hydro however, may be before this now is the time of Gas fuels for next two decades at least. Petroleum Industry has already stepped in Gas age from liquid age fuels.  CNG/LPG has taken over role of Gasoline/diesel as auto fuels.  CNG/LNG has replaced Naphtha, Diesel, Residual Fuel Oil etc in electric generating power plants and other industry as fuel replacement.  Kerosene in kitchen is being replaced by LPG which is further replaced by PNG in cities. Every day we hear petroleum terms like LPG, CNG, LNG, NGL, PNG etc and get rather confused. This post is therefore created, without using high technical terms, for layman primarily now. I am sure this will help in knowing these petroleum terms and enhance understanding of fuels better. The following table is a...

- Myth - Flash point test methods are designed for kerosene contaminated with Gasoline ... part 10 of X Myth – Flash Point Petroleum test method ASTM D56, ASTM D93, IP 170 etc are prepared for Kerosene samples contaminated with Volatile products like gasoline or Naphtha. Facts – False.   Standard test methods ASTM D56, ASTM D93, IP 170 etc are prepared for Kerosene samples which are not contaminated with Gasoline/Naphtha.   A round robin testing of Kerosene samples mixed with 1 % gasoline was programmed at 6 of petroleum testing labs..... tabulate results show vast difference among the labs, beyond the precision limits of test method. -          Explanation follows Keywords - Kerosene contaminated with Gasoline, ASTM D56, ASTM D93, IP 170,  Naphtha Author's Profile https://twitter.com/rjpatel13?lang=en

- Myth of drop in Kerosene flash point is by 1 deg C per percentage of Gasoline contamination ..Part 9  of  X Myth - Due to contamination of Kerosene with gasoline, drop in flash point is by 1 deg C per percentage of Gasoline contamination. Fact - Usually not true, Drop in Kerosene flash point due to per percentage Gasoline or Naphtha contamination varies from 1 deg C, on lower side to about 10 deg C on maximum side.   Rarely drop of 1 deg C is noticed per percentage contamination,  this is only true if Gasoline or Naphtha is highly weathered or while lab experimenting, gasoline blend not properly prepared, or the sample is mishandled. Tabulate data : Explanation follows soon: Author's Profile Key words - Kerosene Contaminated with Gasoline, Naphtha, Flash Point Reduction.  Weathered Petroleum Products Follow me on twitter @RJPatel13 to get notification when my new post is available...

Myth - In a Kerosene storage tank,  if  Kerosene is mixed/ contaminated with gasoline, Gasoline will always rise to the top of the storage tank above Kerosene layer Fact - In a Kerosene storage  tank, if kerosene is mixed / Contaminated with gasoline, Gasoline will not always rise to the storage tank above Kerosene layer .  In number of incidents, it is noticed that the contaminated Gasoline remain trapped in a particular layer in storage tank, based on density of layer.  It happens when top layer of Kerosene is lighter ( lower density) than the lower layer which is having higher density comparatively to the top layer despite containing some percentage of lighter Gasoline.   It is also observed that such gasoline containing layer remains trapped below the top layer indefinitely unless disturbed by effective product circulation  or product pumping out or in for dilution etc. Just for novice, typical 15 deg C Density of Kerosene is ...

Myth -  Kerosene Storage tank top sample has lowest Flash Point Fact -  Kerosene Storage tank top sample may not have lowest Flash Point Properties of petroleum products in a storage tank may not be same at all levels. As product leaves the refinery, it may be received further at intermediate storage locations (terminals or depots) by different modes of transportation like pipeline transfer, ocean tankers, Rail and/or Road. This and also previous products remaining in the tank and the fresh new product being received in the storage tanks usually have different densities. some tanks receive products from different refineries. There is usually no product circulation facility at such location to make the product homogeneous and also practically it is not a desired requirement that the product after receipt in storage tank is homogeneous, as long as it meets relevant specification.  In view of above, the petroleum products in a storage tank usually rema...

- Carbon-Hydrogen Ratio  & Calorific Values - A ready Reckoner - empowering field persons in plants Carbon - Hydrogen Ratio of petroleum products is of prime importance because of it provides a quick means of finding out the quality of same and suitability of use in various applications as feed to petrochemicals, fertilizer plants, energy production etc. C/H ratio as well as Calorific Value of petroleum products is dependent on specific gravity of products, a ready reckoner for field persons can be developed.  This empowers the plant operating persons since they don’t have to now depend upon the laboratory to get these values.  A simple print out pinned on information board gives immediately C/H ratio and Calorific Values only from density figure. The Carbon Hydrogen ratio in hydrocarbons is indicative of the hydrogen richness or deficiency. List of all blog articles on Petroleum QC  by RJ Patel. These prope...

Is Reid Vapor pressure of gasoline (RVP) is same as true vapor pressure (TVP) ? What is difference between RVP and TVP value ? The blog article explain difference between RVP and TVP at slight higher technical level than common man perspectives. List of all blog articles on Petroleum QC  by RJ Patel. Reid vapor pressure  is a common measure of the  volatility of gasoline . It is defined as the absolute  vapor pressure  exerted by a liquid at 37.8 °C (100 °F) as determined by the test method ASTM-D-323. The test method measures the vapor pressure of gasoline, volatile crude oil, and other volatile petroleum products, except for  liquefied petroleum gases . RVP is stated in kilopascals and represents a relative pressure to the atmospheric pressure because ASTM-D-323 measures the gauge pressure of the sample in a non-evacuated chamber. All values are in SI units and are regarded as standards. Imperial units are for informat...