Diluent

{
  "id": "MLC-T-ENE-000544",
  "term": "Diluent",
  "field": "Energy",
  "definition": "A blend of light hydrocarbons used to change properties of very heavy hydrocarbons (extra heavy crude oil, bitumen, etc.) to make it easier to transport and process. Diluents lower viscosity and pour point and raise surface tension to move heavy crude oils through pipelines more easily. The diluted blend can then be processed at lower cost and in a wider variety of refineries. Diluent can be obtained from refineries, natural gas processing plants, or production wells, and may consist of natural gasoline, light crude oil, condensates, pipeline transmix, and other light hydrocarbons.",
  "references": [
    "EIA Glossary"
  ],
  "url": "https://mlchart.com/terminology/energy/diluent/"
}