NOVELTY - Production of bio formula 100 comprises distillation of oil waste from palm coconut through membrane or filter press, distillation one time per stage, and neutralizing methyl ester/biodiesel from pH 10 to pH 5.5-6 by adding sulfuric acid having 12 Molar concentration and 1-1.5 vol.%, and water 10-15 vol.% at mixing tank reactor operating at 40degreesC and atmospheric pressure for 60 minutes, and then evaporated in evaporator tank operating at 65degreesC and 20-60 mmHg for 60-90 minutes. The biodiesel B-100 product has a physico characteristics of yellow brownish liquid.    USE - The process is used for production of bio formula B-100 that is used as an alternative diesel fuel substitution material.    ADVANTAGE - The process reduces the entire production cost and sales price. The process produces product that is yellow-brownish liquid having a chemical characteristics of a maximum value of pH 6 which fully met the criteria as an alternative material for diesel fuel substitution.    DETAILED DESCRIPTION - Bio formula 100 is produced by:    (1) distillation of oil waste from palm coconut through membrane or filter press, distillation 1 time per stage;    (2) continuous stirring of the distillation result goes at the free fatty acids treatment (CSTR unit reactor) operated at 60-70degreesC and atmospheric pressure for 60-90 minutes and adding 99% methanol and 1-1.5% WVO sulfuric acid;    (3) the result is placed in the evaporator (E1) at 65degreesC and pressure of 20-60 mmHg for 60-90 minutes;    (4) distilling the result from E1 in the distillation column (D1) at 65degreesC and a pressure of 20-60 mmHg for 60 minutes, then methanol/methyl ester mixture (top, bottom fractions) at 20degreesC/65degreesC having a concentration of 99% through the condenser at 20degreesC was placed to bait tank (TB1) in the form of water/glycerol/methanol/soap mixture through the reboiler at 65degreesC, and keeping the mixture in liquid condition in dirty water reserved tank (TB5);    (5) mixing the result of methanol distillation with 99% concentration reserved in bait tank in mixing tank (R3) where solid sodium hydroxide/potassium hydroxide (1-1.5) oil waste of fruits/palm coconut (WVO) wt.% is added as catalyst to obtain (reaction: methanol + sodium hydroxide/potassium hydroxide will give sodium Methanol);    (6) evaporating the WVO, storing in pre-reactor reserved for 60 minutes, mixing into CSTR Main Reactor(R2A, R2B) through mixing tank (M1) together with the mixed result from R3 to obtain optimum methyl ester result;    (7) removing the result of R2A and R2B through the bottom part of the reactor, proceeded into pre-reactor reserved (PR2) to obtain optimum result, and then proceeded into the distillation column (D2) having a specified column packing at 65degreesC and a pressure of 20-60 mmHg for 60 minutes;    (8) continuous distilling of methanol/methyl ester mixture at 65degreesC and the methanol (top/vapor) at 20degreesC at D1 so that D1 input becomes D2 and E1 and then distilled similar to D1 initial stage in the form of glycerol + soap + methyl ester through the reboiler at 65degreesC, recovering/withdrawing of the mixture through distillation column (D3), and reserving in the Glycerol Reserve Tank (TB2);    (9) separating the glycerine (top/vapor fraction) through the condenser operating at 20degreesC proceeds to TB2, and the methyl ester/biodiesel (bottom/liquid fraction) through the reboiler at 65degreesC proceeds to mixing tank reactor (R4);    (10) neutralizing methyl ester/biodiesel from pH 10 to pH 5.5-6 by adding sulfuric acid having 12 Molar concentration and 1-1.5 vol.%, and water (10-15) vol.% at R4 mixing tank reactor operating at 40degreesC and atmospheric pressure for 60 minutes, and then evaporated in evaporator tank (E2) operating at 65degreesC and a pressure of 20-60 mmHg for 60-90 minutes; and    (11) retaining the dirty water reserve tank and reserving the biodiesel 100 (further called as Biodiesel B-100) in the biodiesel B-100 product tank.    The Biodiesel B-100 product has a physico of yellow-brownish liquid and chemical characteristics of 6 maximum acid number.